Articles | Volume 19, issue 16
https://doi.org/10.5194/acp-19-10675-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-19-10675-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Aug 2019
Research article |
| 23 Aug 2019
| 23 Aug 2019
Size-resolved composition and morphology of particulate matter during the southwest monsoon in Metro Manila, Philippines
Melliza Templonuevo Cruz
CORRESPONDING AUTHOR
Manila Observatory, Quezon City 1108, Philippines
Institute of Environmental Science and Meteorology, University of the
Philippines, Diliman, Quezon City 1101, Philippines
Paola Angela Bañaga
Manila Observatory, Quezon City 1108, Philippines
Department of Physics, School of Science and Engineering, Ateneo de
Manila University, Quezon City 1108, Philippines
Grace Betito
Manila Observatory, Quezon City 1108, Philippines
Department of Physics, School of Science and Engineering, Ateneo de
Manila University, Quezon City 1108, Philippines
Rachel A. Braun
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Connor Stahl
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Mojtaba Azadi Aghdam
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Maria Obiminda Cambaliza
Manila Observatory, Quezon City 1108, Philippines
Department of Physics, School of Science and Engineering, Ateneo de
Manila University, Quezon City 1108, Philippines
Hossein Dadashazar
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Miguel Ricardo Hilario
Manila Observatory, Quezon City 1108, Philippines
Department of Physics, School of Science and Engineering, Ateneo de
Manila University, Quezon City 1108, Philippines
Genevieve Rose Lorenzo
Manila Observatory, Quezon City 1108, Philippines
Lin Ma
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Alexander B. MacDonald
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Preciosa Corazon Pabroa
Philippine Nuclear Research Institute, Commonwealth Avenue, Diliman,
Quezon City 1101, Philippines
John Robin Yee
Philippine Nuclear Research Institute, Commonwealth Avenue, Diliman,
Quezon City 1101, Philippines
James Bernard Simpas
Manila Observatory, Quezon City 1108, Philippines
Department of Physics, School of Science and Engineering, Ateneo de
Manila University, Quezon City 1108, Philippines
Armin Sorooshian
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Department of Hydrology and Atmospheric Sciences, University of
Arizona, Tucson, AZ, USA
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The NASA Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) produced a unique dataset for research into aerosol–cloud–meteorology interactions. HU-25 Falcon and King Air aircraft conducted systematic and spatially coordinated flights over the northwest Atlantic Ocean. This paper describes the ACTIVATE flight strategy, instrument and complementary dataset products, data access and usage details, and data application notes.
Edward Gryspeerdt, Adam C. Povey, Roy G. Grainger, Otto Hasekamp, N. Christina Hsu, Jane P. Mulcahy, Andrew M. Sayer, and Armin Sorooshian
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Hossein Dadashazar, Andrea F. Corral, Ewan Crosbie, Sanja Dmitrovic, Simon Kirschler, Kayla McCauley, Richard Moore, Claire Robinson, Joseph S. Schlosser, Michael Shook, K. Lee Thornhill, Christiane Voigt, Edward Winstead, Luke Ziemba, and Armin Sorooshian
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Atmos. Chem. Phys., 22, 13269–13302, https://doi.org/10.5194/acp-22-13269-2022, https://doi.org/10.5194/acp-22-13269-2022, 2022
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Eva-Lou Edwards, Jeffrey S. Reid, Peng Xian, Sharon P. Burton, Anthony L. Cook, Ewan C. Crosbie, Marta A. Fenn, Richard A. Ferrare, Sean W. Freeman, John W. Hair, David B. Harper, Chris A. Hostetler, Claire E. Robinson, Amy Jo Scarino, Michael A. Shook, G. Alexander Sokolowsky, Susan C. van den Heever, Edward L. Winstead, Sarah Woods, Luke D. Ziemba, and Armin Sorooshian
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This study compares NAAPS-RA model simulations of aerosol optical thickness (AOT) and extinction to those retrieved with a high spectral resolution lidar near the Philippines. Agreement for AOT was good, and extinction agreement was strongest below 1500 m. Substituting dropsonde relative humidities into NAAPS-RA did not drastically improve agreement, and we discuss potential reasons why. Accurately modeling future conditions in this region is crucial due to its susceptibility to climate change.
Edward Gryspeerdt, Daniel T. McCoy, Ewan Crosbie, Richard H. Moore, Graeme J. Nott, David Painemal, Jennifer Small-Griswold, Armin Sorooshian, and Luke Ziemba
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Simon Kirschler, Christiane Voigt, Bruce Anderson, Ramon Campos Braga, Gao Chen, Andrea F. Corral, Ewan Crosbie, Hossein Dadashazar, Richard A. Ferrare, Valerian Hahn, Johannes Hendricks, Stefan Kaufmann, Richard Moore, Mira L. Pöhlker, Claire Robinson, Amy J. Scarino, Dominik Schollmayer, Michael A. Shook, K. Lee Thornhill, Edward Winstead, Luke D. Ziemba, and Armin Sorooshian
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In this study we show that the vertical velocity dominantly impacts the cloud droplet number concentration (NC) of low-level clouds over the western North Atlantic in the winter and summer season, while the cloud condensation nuclei concentration, aerosol size distribution and chemical composition impact NC within a season. The observational data presented in this study can evaluate and improve the representation of aerosol–cloud interactions for a wide range of conditions.
Joseph S. Schlosser, Connor Stahl, Armin Sorooshian, Yen Thi-Hoang Le, Ki-Joon Jeon, Peng Xian, Carolyn E. Jordan, Katherine R. Travis, James H. Crawford, Sung Yong Gong, Hye-Jung Shin, In-Ho Song, and Jong-sang Youn
Atmos. Chem. Phys., 22, 7505–7522, https://doi.org/10.5194/acp-22-7505-2022, https://doi.org/10.5194/acp-22-7505-2022, 2022
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During a major haze pollution episode in March 2019, anthropogenic emissions were dominant in the boundary layer over Incheon and Seoul, South Korea. Using supermicrometer and submicrometer size- and chemistry-resolved aerosol particle measurements taken during this haze pollution period, this work shows that local emissions and a shallow boundary layer, enhanced humidity, and low temperature promoted local heterogeneous formation of secondary inorganic and organic aerosol species.
Meloë S. F. Kacenelenbogen, Qian Tan, Sharon P. Burton, Otto P. Hasekamp, Karl D. Froyd, Yohei Shinozuka, Andreas J. Beyersdorf, Luke Ziemba, Kenneth L. Thornhill, Jack E. Dibb, Taylor Shingler, Armin Sorooshian, Reed W. Espinosa, Vanderlei Martins, Jose L. Jimenez, Pedro Campuzano-Jost, Joshua P. Schwarz, Matthew S. Johnson, Jens Redemann, and Gregory L. Schuster
Atmos. Chem. Phys., 22, 3713–3742, https://doi.org/10.5194/acp-22-3713-2022, https://doi.org/10.5194/acp-22-3713-2022, 2022
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The impact of aerosols on Earth's radiation budget and human health is important and strongly depends on their composition. One desire of our scientific community is to derive the composition of the aerosol from satellite sensors. However, satellites observe aerosol optical properties (and not aerosol composition) based on remote sensing instrumentation. This study assesses how much aerosol optical properties can tell us about aerosol composition.
Matthew W. Christensen, Andrew Gettelman, Jan Cermak, Guy Dagan, Michael Diamond, Alyson Douglas, Graham Feingold, Franziska Glassmeier, Tom Goren, Daniel P. Grosvenor, Edward Gryspeerdt, Ralph Kahn, Zhanqing Li, Po-Lun Ma, Florent Malavelle, Isabel L. McCoy, Daniel T. McCoy, Greg McFarquhar, Johannes Mülmenstädt, Sandip Pal, Anna Possner, Adam Povey, Johannes Quaas, Daniel Rosenfeld, Anja Schmidt, Roland Schrödner, Armin Sorooshian, Philip Stier, Velle Toll, Duncan Watson-Parris, Robert Wood, Mingxi Yang, and Tianle Yuan
Atmos. Chem. Phys., 22, 641–674, https://doi.org/10.5194/acp-22-641-2022, https://doi.org/10.5194/acp-22-641-2022, 2022
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Trace gases and aerosols (tiny airborne particles) are released from a variety of point sources around the globe. Examples include volcanoes, industrial chimneys, forest fires, and ship stacks. These sources provide opportunistic experiments with which to quantify the role of aerosols in modifying cloud properties. We review the current state of understanding on the influence of aerosol on climate built from the wide range of natural and anthropogenic laboratories investigated in recent decades.
Hossein Dadashazar, Majid Alipanah, Miguel Ricardo A. Hilario, Ewan Crosbie, Simon Kirschler, Hongyu Liu, Richard H. Moore, Andrew J. Peters, Amy Jo Scarino, Michael Shook, K. Lee Thornhill, Christiane Voigt, Hailong Wang, Edward Winstead, Bo Zhang, Luke Ziemba, and Armin Sorooshian
Atmos. Chem. Phys., 21, 16121–16141, https://doi.org/10.5194/acp-21-16121-2021, https://doi.org/10.5194/acp-21-16121-2021, 2021
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This study investigates precipitation impacts on long-range transport of North American outflow over the western North Atlantic Ocean (WNAO). Results demonstrate that precipitation scavenging plays a significant role in modifying surface aerosol concentrations over the WNAO, especially in winter and spring due to large-scale scavenging processes. This study highlights how precipitation impacts surface aerosol properties with relevance for other marine regions vulnerable to continental outflow.
Connor Stahl, Ewan Crosbie, Paola Angela Bañaga, Grace Betito, Rachel A. Braun, Zenn Marie Cainglet, Maria Obiminda Cambaliza, Melliza Templonuevo Cruz, Julie Mae Dado, Miguel Ricardo A. Hilario, Gabrielle Frances Leung, Alexander B. MacDonald, Angela Monina Magnaye, Jeffrey Reid, Claire Robinson, Michael A. Shook, James Bernard Simpas, Shane Marie Visaga, Edward Winstead, Luke Ziemba, and Armin Sorooshian
Atmos. Chem. Phys., 21, 14109–14129, https://doi.org/10.5194/acp-21-14109-2021, https://doi.org/10.5194/acp-21-14109-2021, 2021
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A total of 159 cloud water samples were collected and measured for total organic carbon (TOC) during CAMP2Ex. On average, 30 % of TOC was speciated based on carboxylic/sulfonic acids and dimethylamine. Results provide a critical constraint on cloud composition and vertical profiles of TOC and organic species ranging from ~250 m to ~ 7 km and representing a variety of cloud types and air mass source influences such as biomass burning, marine emissions, anthropogenic activity, and dust.
Hossein Dadashazar, David Painemal, Majid Alipanah, Michael Brunke, Seethala Chellappan, Andrea F. Corral, Ewan Crosbie, Simon Kirschler, Hongyu Liu, Richard H. Moore, Claire Robinson, Amy Jo Scarino, Michael Shook, Kenneth Sinclair, K. Lee Thornhill, Christiane Voigt, Hailong Wang, Edward Winstead, Xubin Zeng, Luke Ziemba, Paquita Zuidema, and Armin Sorooshian
Atmos. Chem. Phys., 21, 10499–10526, https://doi.org/10.5194/acp-21-10499-2021, https://doi.org/10.5194/acp-21-10499-2021, 2021
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This study investigates the seasonal cycle of cloud drop number concentration (Nd) over the western North Atlantic Ocean (WNAO) using multiple datasets. Reasons for the puzzling discrepancy between the seasonal cycles of Nd and aerosol concentration were identified. Results indicate that Nd is highest in winter (when aerosol proxy values are often lowest) due to conditions both linked to cold-air outbreaks and that promote greater droplet activation.
Genevieve Rose Lorenzo, Paola Angela Bañaga, Maria Obiminda Cambaliza, Melliza Templonuevo Cruz, Mojtaba AzadiAghdam, Avelino Arellano, Grace Betito, Rachel Braun, Andrea F. Corral, Hossein Dadashazar, Eva-Lou Edwards, Edwin Eloranta, Robert Holz, Gabrielle Leung, Lin Ma, Alexander B. MacDonald, Jeffrey S. Reid, James Bernard Simpas, Connor Stahl, Shane Marie Visaga, and Armin Sorooshian
Atmos. Chem. Phys., 21, 6155–6173, https://doi.org/10.5194/acp-21-6155-2021, https://doi.org/10.5194/acp-21-6155-2021, 2021
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Firework emissions change the physicochemical and optical properties of water-soluble particles, which subsequently alters the background aerosol’s respirability, influence on surroundings, ability to uptake gases, and viability as cloud condensation nuclei (CCN). There was heavy aerosol loading due to fireworks in the boundary layer. The aerosol constituents were largely water-soluble and submicrometer in size due to both inorganic salts in firework materials and gas-to-particle conversion.
Miguel Ricardo A. Hilario, Ewan Crosbie, Michael Shook, Jeffrey S. Reid, Maria Obiminda L. Cambaliza, James Bernard B. Simpas, Luke Ziemba, Joshua P. DiGangi, Glenn S. Diskin, Phu Nguyen, F. Joseph Turk, Edward Winstead, Claire E. Robinson, Jian Wang, Jiaoshi Zhang, Yang Wang, Subin Yoon, James Flynn, Sergio L. Alvarez, Ali Behrangi, and Armin Sorooshian
Atmos. Chem. Phys., 21, 3777–3802, https://doi.org/10.5194/acp-21-3777-2021, https://doi.org/10.5194/acp-21-3777-2021, 2021
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This study characterizes long-range transport from major Asian pollution sources into the tropical northwest Pacific and the impact of scavenging on these air masses. We combined aircraft observations, HYSPLIT trajectories, reanalysis, and satellite retrievals to reveal distinct composition and size distribution profiles associated with specific emission sources and wet scavenging. The results of this work have implications for international policymaking related to climate and health.
Connor Stahl, Melliza Templonuevo Cruz, Paola Angela Bañaga, Grace Betito, Rachel A. Braun, Mojtaba Azadi Aghdam, Maria Obiminda Cambaliza, Genevieve Rose Lorenzo, Alexander B. MacDonald, Miguel Ricardo A. Hilario, Preciosa Corazon Pabroa, John Robin Yee, James Bernard Simpas, and Armin Sorooshian
Atmos. Chem. Phys., 20, 15907–15935, https://doi.org/10.5194/acp-20-15907-2020, https://doi.org/10.5194/acp-20-15907-2020, 2020
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Long-term (16-month) high-frequency (weekly) measurements of size-resolved aerosol composition are reported. Important insights are discussed about factors (e.g., transport, fires, precipitation, photo-oxidation) impacting the mass size distributions of organic and sulfonic acids at a coastal megacity with diverse meteorology. The size-resolved nature of the data yielded one such finding that organic acids preferentially adsorb to dust rather than sea salt particles.
Alexander B. MacDonald, Ali Hossein Mardi, Hossein Dadashazar, Mojtaba Azadi Aghdam, Ewan Crosbie, Haflidi H. Jonsson, Richard C. Flagan, John H. Seinfeld, and Armin Sorooshian
Atmos. Chem. Phys., 20, 7645–7665, https://doi.org/10.5194/acp-20-7645-2020, https://doi.org/10.5194/acp-20-7645-2020, 2020
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Understanding how humans affect Earth's climate requires understanding of how particles in the air affect the number concentration of droplets in a cloud (Nd). We use the air-equivalent mass concentration of different chemical species contained in cloud water to predict Nd. In this study we found that the prediction of Nd is (1) best described by total sulfate; (2) improved when considering up to five species; and (3) dependent on factors like turbulence, smoke presence, and in-cloud height.
Hossein Dadashazar, Ewan Crosbie, Mohammad S. Majdi, Milad Panahi, Mohammad A. Moghaddam, Ali Behrangi, Michael Brunke, Xubin Zeng, Haflidi H. Jonsson, and Armin Sorooshian
Atmos. Chem. Phys., 20, 4637–4665, https://doi.org/10.5194/acp-20-4637-2020, https://doi.org/10.5194/acp-20-4637-2020, 2020
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Clearings in the marine-boundary-layer (MBL) cloud deck of the Pacific Ocean were studied. Remote sensing, reanalysis, and airborne data were used along with machine-learning modeling to characterize the spatiotemporal nature of clearings and factors governing their growth. The most significant implications of our results are linked to modeling of fog and MBL clouds, with implications for societal and environmental issues like climate, military operations, transportation, and coastal ecology.
Rachel A. Braun, Mojtaba Azadi Aghdam, Paola Angela Bañaga, Grace Betito, Maria Obiminda Cambaliza, Melliza Templonuevo Cruz, Genevieve Rose Lorenzo, Alexander B. MacDonald, James Bernard Simpas, Connor Stahl, and Armin Sorooshian
Atmos. Chem. Phys., 20, 2387–2405, https://doi.org/10.5194/acp-20-2387-2020, https://doi.org/10.5194/acp-20-2387-2020, 2020
Miguel Ricardo A. Hilario, Melliza T. Cruz, Maria Obiminda L. Cambaliza, Jeffrey S. Reid, Peng Xian, James B. Simpas, Nofel D. Lagrosas, Sherdon Niño Y. Uy, Steve Cliff, and Yongjing Zhao
Atmos. Chem. Phys., 20, 1255–1276, https://doi.org/10.5194/acp-20-1255-2020, https://doi.org/10.5194/acp-20-1255-2020, 2020
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The research apportions size-resolved aerosol contributions from the South China Sea during the Vasco research cruise in September 2011. As aerosols can affect precipitation rates and cloud formation, identifying sources is key to characterizing the region and developing our understanding of aerosol–cloud behavior. A strong biomass burning signal was identified using elemental particulate matter in the fine and ultrafine size ranges. Oil combustion, soil dust, and sea spray were also identified.
Barbara Ervens, Armin Sorooshian, Abdulmonam M. Aldhaif, Taylor Shingler, Ewan Crosbie, Luke Ziemba, Pedro Campuzano-Jost, Jose L. Jimenez, and Armin Wisthaler
Atmos. Chem. Phys., 18, 16099–16119, https://doi.org/10.5194/acp-18-16099-2018, https://doi.org/10.5194/acp-18-16099-2018, 2018
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The paper presents a new framework that can be used to identify emission scenarios in which aerosol populations are most likely modified by chemical processes in clouds. We show that in neither very polluted nor in very clean air masses is this the case. Only if the ratio of possible aerosol mass precursors (sulfur dioxide, some organics) and preexisting aerosol mass is sufficiently high will aerosol particles show substantially modified physicochemical properties upon cloud processing.
William H. Brune, Xinrong Ren, Li Zhang, Jingqiu Mao, David O. Miller, Bruce E. Anderson, Donald R. Blake, Ronald C. Cohen, Glenn S. Diskin, Samuel R. Hall, Thomas F. Hanisco, L. Gregory Huey, Benjamin A. Nault, Jeff Peischl, Ilana Pollack, Thomas B. Ryerson, Taylor Shingler, Armin Sorooshian, Kirk Ullmann, Armin Wisthaler, and Paul J. Wooldridge
Atmos. Chem. Phys., 18, 14493–14510, https://doi.org/10.5194/acp-18-14493-2018, https://doi.org/10.5194/acp-18-14493-2018, 2018
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Thunderstorms pull in polluted air from near the ground, transport it up through clouds containing lightning, and deposit it at altitudes where airplanes fly. The resulting chemical mixture in this air reacts to form ozone and particles, which affect climate. In this study, aircraft observations of the reactive gases responsible for this chemistry generally agree with modeled values, even in ice clouds. Thus, atmospheric oxidation chemistry appears to be mostly understood for this environment.
Ewan Crosbie, Matthew D. Brown, Michael Shook, Luke Ziemba, Richard H. Moore, Taylor Shingler, Edward Winstead, K. Lee Thornhill, Claire Robinson, Alexander B. MacDonald, Hossein Dadashazar, Armin Sorooshian, Andreas Beyersdorf, Alexis Eugene, Jeffrey Collett Jr., Derek Straub, and Bruce Anderson
Atmos. Meas. Tech., 11, 5025–5048, https://doi.org/10.5194/amt-11-5025-2018, https://doi.org/10.5194/amt-11-5025-2018, 2018
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A new aircraft-mounted probe for collecting samples of cloud water has been designed, fabricated, and extensively tested. Cloud drop composition provides valuable insight into atmospheric processes, but separating liquid samples from the airstream in a controlled way at flight speeds has proven difficult. The features of the design have been analysed with detailed numerical flow simulations and the new probe has demonstrated improved efficiency and performance through extensive flight testing.
Hossein Dadashazar, Rachel A. Braun, Ewan Crosbie, Patrick Y. Chuang, Roy K. Woods, Haflidi H. Jonsson, and Armin Sorooshian
Atmos. Chem. Phys., 18, 1495–1506, https://doi.org/10.5194/acp-18-1495-2018, https://doi.org/10.5194/acp-18-1495-2018, 2018
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This study shows with airborne data that in the thin layer above stratocumulus clouds, the entrainment interface layer (EIL), aerosol size distributions are influenced both by new particle formation and by pollutants above and below the EIL. These results are important with regard to understanding aerosol–cloud–climate interactions as the aerosol in this layer can influence the characteristics of stratocumulus clouds, which are the dominant cloud type by global area.
Samuel A. Atwood, Jeffrey S. Reid, Sonia M. Kreidenweis, Donald R. Blake, Haflidi H. Jonsson, Nofel D. Lagrosas, Peng Xian, Elizabeth A. Reid, Walter R. Sessions, and James B. Simpas
Atmos. Chem. Phys., 17, 1105–1123, https://doi.org/10.5194/acp-17-1105-2017, https://doi.org/10.5194/acp-17-1105-2017, 2017
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Aerosol particles were measured by ship in remote marine regions of the South China Sea as part of the 2012 7 Southeast Asian Studies (7SEAS) experiments. As the particle populations changed throughout the experiment, the distribution of particle sizes and the amount of water that collected on them changed as well. These changes were associated with various impacts from smoke, sea salt, and pollution sources, and impact how clouds form and precipitation occurs in the region.
Eunsil Jung, Bruce A. Albrecht, Armin Sorooshian, Paquita Zuidema, and Haflidi H. Jonsson
Atmos. Chem. Phys., 16, 11395–11413, https://doi.org/10.5194/acp-16-11395-2016, https://doi.org/10.5194/acp-16-11395-2016, 2016
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We calculate the qualitative behavior of precipitation response to aerosol loadings with cloud depths for warm boundary layer clouds (stratocumulus and shallow marine cumulus), using aircraft measurements across four field campaigns. The finding shows that precipitation responds similarly to aerosol loadings for both stratocumulus and cumulus clouds, regardless of cloud type. Precipitation is most susceptible to aerosol perturbations in the medium–deep depth of clouds.
E. Crosbie, J.-S. Youn, B. Balch, A. Wonaschütz, T. Shingler, Z. Wang, W. C. Conant, E. A. Betterton, and A. Sorooshian
Atmos. Chem. Phys., 15, 6943–6958, https://doi.org/10.5194/acp-15-6943-2015, https://doi.org/10.5194/acp-15-6943-2015, 2015
E. Jung, B. A. Albrecht, H. H. Jonsson, Y.-C. Chen, J. H. Seinfeld, A. Sorooshian, A. R. Metcalf, S. Song, M. Fang, and L. M. Russell
Atmos. Chem. Phys., 15, 5645–5658, https://doi.org/10.5194/acp-15-5645-2015, https://doi.org/10.5194/acp-15-5645-2015, 2015
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To study the effect of giant cloud condensation nuclei (GCCN) on precipitation processes in stratocumulus clouds, 1-10 µm diameter salt particles were released from an aircraft while flying near the cloud top off the central coast of California. The analyses suggest that GCCN result in a four-fold increase in the cloud base rainfall rate and depletion of the cloud water due to rainout.
S. P. Hersey, R. M. Garland, E. Crosbie, T. Shingler, A. Sorooshian, S. Piketh, and R. Burger
Atmos. Chem. Phys., 15, 4259–4278, https://doi.org/10.5194/acp-15-4259-2015, https://doi.org/10.5194/acp-15-4259-2015, 2015
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A decadal aerosol climatology of South Africa's major metropolitan areas is presented, utilizing data from multiple satellite platforms and 19 ground-monitoring sites. Remotely sensed data are dominated by a seasonal signal corresponding to transported biomass burning during austral spring, while ground data are dominated by domestic burning in low-income areas during austral winter. We report poor agreement between satellite- and ground-based aerosol measurements.
A. Wonaschütz, M. Coggon, A. Sorooshian, R. Modini, A. A. Frossard, L. Ahlm, J. Mülmenstädt, G. C. Roberts, L. M. Russell, S. Dey, F. J. Brechtel, and J. H. Seinfeld
Atmos. Chem. Phys., 13, 9819–9835, https://doi.org/10.5194/acp-13-9819-2013, https://doi.org/10.5194/acp-13-9819-2013, 2013
A. Sorooshian, T. Shingler, A. Harpold, C. W. Feagles, T. Meixner, and P. D. Brooks
Atmos. Chem. Phys., 13, 7361–7379, https://doi.org/10.5194/acp-13-7361-2013, https://doi.org/10.5194/acp-13-7361-2013, 2013
Related subject area
Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Measurement report: Characteristics of nitrogen-containing organics in PM2.5 in Ürümqi, northwestern China – differential impacts of combustion of fresh and aged biomass materials
Measurement report: Bio-physicochemistry of tropical clouds at Maïdo (Réunion, Indian Ocean): overview of results from the BIO-MAÏDO campaign
Chemical properties and single-particle mixing state of soot aerosol in Houston during the TRACER campaign
Measurement report: Evaluation of the TOF-ACSM-CV for PM1.0 and PM2.5 measurements during the RITA-2021 field campaign
Sea salt reactivity over the northwest Atlantic: an in-depth look using the airborne ACTIVATE dataset
Measurement report: Atmospheric ice nuclei in the Changbai Mountains (2623 m a.s.l.) in northeastern Asia
Morphological and optical properties of carbonaceous aerosol particles from ship emissions and biomass burning during a summer cruise measurement in the South China Sea
Tropical tropospheric aerosol sources and chemical composition observed at high altitude in the Bolivian Andes
Chemical composition, sources and formation mechanism of urban PM2.5 in Southwest China: a case study at the beginning of 2023
Chemical characterization of atmospheric aerosols at a high-altitude mountain site: a study of source apportionment
Composition and sources of carbonaceous aerosol in the European Arctic at Zeppelin Observatory, Svalbard (2017 to 2020)
Variation in chemical composition and volatility of oxygenated organic aerosol in different rural, urban, and mountain environments
Elucidating the mechanisms of atmospheric new particle formation in the highly polluted Po Valley, Italy
Roles of marine biota in the formation of atmospheric bioaerosols, cloud condensation nuclei, and ice-nucleating particles over the North Pacific Ocean, Bering Sea, and Arctic Ocean
Evolution of nucleophilic high molecular-weight organic compounds in ambient aerosols: a case study
Fractional solubility of iron in mineral dust aerosols over coastal Namibia: a link to marine biogenic emissions?
Real-world observations of reduced nitrogen and ultrafine particles in commercial cooking organic aerosol emissions
Source apportionment of PM2.5 in Montréal, Canada, and health risk assessment for potentially toxic elements
Physicochemical and temporal characteristics of individual atmospheric aerosol particles in urban Seoul during KORUS-AQ campaign: insights from single-particle analysis
Mass spectrometric analysis of unprecedented high levels of carbonaceous aerosol particles long-range transported from wildfires in the Siberian Arctic
Short-term source apportionment of fine particulate matter with time-dependent profiles using SoFi Pro: exploring the reliability of rolling positive matrix factorization (PMF) applied to bihourly molecular and elemental tracer data
Particulate-bound alkyl nitrate pollution and formation mechanisms in Beijing, China
Characterization of water-soluble brown carbon chromophores from wildfire plumes in the western USA using size-exclusion chromatography
Marine carbohydrates in Arctic aerosol particles and fog – diversity of oceanic sources and atmospheric transformations
Investigating the contribution of grown new particles to cloud condensation nuclei with largely varying preexisting particles – Part 1: Observational data analysis
Measurement report: Brown carbon aerosol in polluted urban air of the North China Plain – day–night differences in the chromophores and optical properties
Source apportionment of soot particles and aqueous-phase processing of black carbon coatings in an urban environment
Daytime and nighttime aerosol soluble iron formation in clean and slightly-polluted moisture air in a coastal city in eastern China
Impact of Weather Patterns and Meteorological Factors on PM2.5 and O3 during the Covid-19 Lockdown in China
Seasonal variations in composition and sources of atmospheric ultrafine particles in urban Beijing based on near-continuous measurements
Summertime response of ozone and fine particulate matter to mixing layer meteorology over the North China Plain
Trace elements in PM2.5 aerosols in East Asian outflow in the spring of 2018: emission, transport, and source apportionment
Measurement Report: Investigation on the sources and formation processes of dicarboxylic acids and related species in urban aerosols before and during the COVID-19 lockdown in Jinan, East China
pH dependence of brown-carbon optical properties in cloud water
Oxidative potential in rural, suburban and city centre atmospheric environments in central Europe
Secondary aerosol formation during a special dust transport event: impacts from unusually enhanced ozone and dust backflows over the ocean
Intra-event evolution of elemental and ionic concentrations in wet deposition in an urban environment
Spatial and diurnal variations of aerosol organosulfates in summertime Shanghai, China: potential influence of photochemical processes and anthropogenic sulfate pollution
Bayesian Inference-Based Estimation of Hourly Primary and Secondary Organic Carbon at Suburban Hong Kong: Multi-temporal Scale Variations and Evolution Characteristics during PM2.5 episodes
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and eco-region specific components
Characterizing water-soluble brown carbon in fine particles in four typical cities in northwestern China during wintertime: integrating optical properties with chemical processes
Chemical composition-dependent hygroscopic behavior of individual ambient aerosol particles collected at a coastal site
Gas–particle partitioning of semivolatile organic compounds when wildfire smoke comes to town
Enrichment of calcium in sea spray aerosol: insights from bulk measurements and individual particle analysis during the R/V Xuelong cruise in the summertime in Ross Sea, Antarctica
Source apportionment study on particulate air pollution in two high-altitude Bolivian cities: La Paz and El Alto
Morphological features and water solubility of iron in aged fine aerosol particles over the Indian Ocean
What chemical species are responsible for new particle formation and growth in the Netherlands? A hybrid positive matrix factorization (PMF) analysis using aerosol composition (ACSM) and size (SMPS)
Measurement report: Stoichiometry of dissolved iron and aluminum as an indicator of the factors controlling the fractional solubility of aerosol iron – results of the annual observations of size-fractionated aerosol particles in Japan
In-depth study of the formation processes of single atmospheric particles in the south-eastern margin of the Tibetan Plateau
Climatology of aerosol properties at an atmospheric monitoring site on the northern California coast
Yi-Jia Ma, Yu Xu, Ting Yang, Hong-Wei Xiao, and Hua-Yun Xiao
Atmos. Chem. Phys., 24, 4331–4346, https://doi.org/10.5194/acp-24-4331-2024, https://doi.org/10.5194/acp-24-4331-2024, 2024
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This study provides field-based evidence about the differential impacts of combustion of fresh and aged biomass materials on aerosol nitrogen-containing organic compounds (NOCs) in different seasons in Ürümqi, bridging the linkages between the observations and previous laboratory studies showing the formation mechanisms of NOCs.
Maud Leriche, Pierre Tulet, Laurent Deguillaume, Frédéric Burnet, Aurélie Colomb, Agnès Borbon, Corinne Jambert, Valentin Duflot, Stéphan Houdier, Jean-Luc Jaffrezo, Mickaël Vaïtilingom, Pamela Dominutti, Manon Rocco, Camille Mouchel-Vallon, Samira El Gdachi, Maxence Brissy, Maroua Fathalli, Nicolas Maury, Bert Verreyken, Crist Amelynck, Niels Schoon, Valérie Gros, Jean-Marc Pichon, Mickael Ribeiro, Eric Pique, Emmanuel Leclerc, Thierry Bourrianne, Axel Roy, Eric Moulin, Joël Barrie, Jean-Marc Metzger, Guillaume Péris, Christian Guadagno, Chatrapatty Bhugwant, Jean-Mathieu Tibere, Arnaud Tournigand, Evelyn Freney, Karine Sellegri, Anne-Marie Delort, Pierre Amato, Muriel Joly, Jean-Luc Baray, Pascal Renard, Angelica Bianco, Anne Réchou, and Guillaume Payen
Atmos. Chem. Phys., 24, 4129–4155, https://doi.org/10.5194/acp-24-4129-2024, https://doi.org/10.5194/acp-24-4129-2024, 2024
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Aerosol particles in the atmosphere play a key role in climate change and air pollution. A large number of aerosol particles are formed from the oxidation of volatile organic compounds (VOCs and secondary organic aerosols – SOA). An important field campaign was organized on Réunion in March–April 2019 to understand the formation of SOA in a tropical atmosphere mostly influenced by VOCs emitted by forest and in the presence of clouds. This work synthesizes the results of this campaign.
Ryan N. Farley, James E. Lee, Laura-Hélèna Rivellini, Alex K. Y. Lee, Rachael Dal Porto, Christopher D. Cappa, Kyle Gorkowski, Abu Sayeed Md Shawon, Katherine B. Benedict, Allison C. Aiken, Manvendra K. Dubey, and Qi Zhang
Atmos. Chem. Phys., 24, 3953–3971, https://doi.org/10.5194/acp-24-3953-2024, https://doi.org/10.5194/acp-24-3953-2024, 2024
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The black carbon aerosol composition and mixing state were characterized using a soot particle aerosol mass spectrometer. Single-particle measurements revealed the major role of atmospheric processing in modulating the black carbon mixing state. A significant fraction of soot particles were internally mixed with oxidized organic aerosol and sulfate, with implications for activation as cloud nuclei.
Xinya Liu, Bas Henzing, Arjan Hensen, Jan Mulder, Peng Yao, Danielle van Dinther, Jerry van Bronckhorst, Rujin Huang, and Ulrike Dusek
Atmos. Chem. Phys., 24, 3405–3420, https://doi.org/10.5194/acp-24-3405-2024, https://doi.org/10.5194/acp-24-3405-2024, 2024
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We evaluated the time-of-flight aerosol chemical speciation monitor (TOF-ACSM) following the implementation of the PM2.5 aerodynamic lens and a capture vaporizer (CV). The results showed that it significantly improved the accuracy and precision of ACSM in the field observations. The paper elucidates the measurement outcomes of various instruments and provides an analysis of their biases. This comprehensive evaluation is expected to benefit the ACSM community and other aerosol field measurements.
Eva-Lou Edwards, Yonghoon Choi, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Claire E. Robinson, Michael A. Shook, Edward L. Winstead, Luke D. Ziemba, and Armin Sorooshian
Atmos. Chem. Phys., 24, 3349–3378, https://doi.org/10.5194/acp-24-3349-2024, https://doi.org/10.5194/acp-24-3349-2024, 2024
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We investigate Cl− depletion in sea salt particles over the northwest Atlantic from December 2021 to June 2022 using an airborne dataset. Losses of Cl− are greatest in May and least in December–February and March. Inorganic acidic species can account for all depletion observed for December–February, March, and June near Bermuda but none in May. Quantifying Cl− depletion as a percentage captures seasonal trends in depletion but fails to convey the effects it may have on atmospheric oxidation.
Yue Sun, Yujiao Zhu, Yanbin Qi, Lanxiadi Chen, Jiangshan Mu, Ye Shan, Yu Yang, Yanqiu Nie, Ping Liu, Can Cui, Ji Zhang, Mingxuan Liu, Lingli Zhang, Yufei Wang, Xinfeng Wang, Mingjin Tang, Wenxing Wang, and Likun Xue
Atmos. Chem. Phys., 24, 3241–3256, https://doi.org/10.5194/acp-24-3241-2024, https://doi.org/10.5194/acp-24-3241-2024, 2024
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Field observations were conducted at the summit of Changbai Mountain in northeast Asia. The cumulative number concentration of ice-nucleating particles (INPs) varied from 1.6 × 10−3 to 78.3 L−1 over the temperature range of −5.5 to −29.0 ℃. Biological INPs (bio-INPs) accounted for the majority of INPs, and the proportion exceeded 90% above −13.0 ℃. Planetary boundary layer height, valley breezes, and long-distance transport of air mass influence the abundance of bio-INPs.
Cuizhi Sun, Yongyun Zhang, Baoling Liang, Min Gao, Xi Sun, Fei Li, Xue Ni, Qibin Sun, Hengjia Ou, Dexian Chen, Shengzhen Zhou, and Jun Zhao
Atmos. Chem. Phys., 24, 3043–3063, https://doi.org/10.5194/acp-24-3043-2024, https://doi.org/10.5194/acp-24-3043-2024, 2024
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In a May–June 2021 expedition in the South China Sea, we analyzed black and brown carbon in marine aerosols, key to light absorption and climate impact. Using advanced in situ and microscope techniques, we observed particle size, structure, and tar balls mixed with various elements. Results showed biomass burning and fossil fuels majorly influence light absorption, especially during significant burning events. This research aids the understanding of carbonaceous aerosols' role in marine climate.
C. Isabel Moreno, Radovan Krejci, Jean-Luc Jaffrezo, Gaëlle Uzu, Andrés Alastuey, Marcos F. Andrade, Valeria Mardóñez, Alkuin Maximilian Koenig, Diego Aliaga, Claudia Mohr, Laura Ticona, Fernando Velarde, Luis Blacutt, Ricardo Forno, David N. Whiteman, Alfred Wiedensohler, Patrick Ginot, and Paolo Laj
Atmos. Chem. Phys., 24, 2837–2860, https://doi.org/10.5194/acp-24-2837-2024, https://doi.org/10.5194/acp-24-2837-2024, 2024
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Aerosol chemical composition (ions, sugars, carbonaceous matter) from 2011 to 2020 was studied at Mt. Chacaltaya (5380 m a.s.l., Bolivian Andes). Minimum concentrations occur in the rainy season with maxima in the dry and transition seasons. The origins of the aerosol are located in a radius of hundreds of kilometers: nearby urban and rural areas, natural biogenic emissions, vegetation burning from Amazonia and Chaco, Pacific Ocean emissions, soil dust, and Peruvian volcanism.
Junke Zhang, Yunfei Su, Chunying Chen, Wenkai Guo, Qinwen Tan, Miao Feng, Danlin Song, Tao Jiang, Qiang Chen, Yuan Li, Wei Li, Yizhi Wang, Xiaojuan Huang, Lin Han, Wanqing Wu, and Gehui Wang
Atmos. Chem. Phys., 24, 2803–2820, https://doi.org/10.5194/acp-24-2803-2024, https://doi.org/10.5194/acp-24-2803-2024, 2024
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Typical haze events in Chengdu at the beginning of 2023 were investigated with bulk-chemical and single-particle analyses along with numerical model simulations. By integrating the obtained chemical composition, source, mixing state and numerical simulation results, we infer that Haze-1 was mainly caused by pollutants related to fossil fuel combustion, especially local mobile sources, while Haze-2 was triggered by the secondary pollutants, which mainly came from regional transmission.
Elena Barbaro, Matteo Feltracco, Fabrizio De Blasi, Clara Turetta, Marta Radaelli, Warren Cairns, Giulio Cozzi, Giovanna Mazzi, Marco Casula, Jacopo Gabrieli, Carlo Barbante, and Andrea Gambaro
Atmos. Chem. Phys., 24, 2821–2835, https://doi.org/10.5194/acp-24-2821-2024, https://doi.org/10.5194/acp-24-2821-2024, 2024
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The study analyzed a year of atmospheric aerosol composition at Col Margherita in the Italian Alps. Over 100 chemical markers were identified, including major ions, organic compounds, and trace elements. It revealed sources of aerosol, highlighted impacts of Saharan dust events, and showed anthropogenic pollution's influence despite the site's remoteness. Enrichment factors emphasized non-natural sources of trace elements. Source apportionment identified four key factors affecting the area.
Karl Espen Yttri, Are Bäcklund, Franz Conen, Sabine Eckhardt, Nikolaos Evangeliou, Markus Fiebig, Anne Kasper-Giebl, Avram Gold, Hans Gundersen, Cathrine Lund Myhre, Stephen Matthew Platt, David Simpson, Jason D. Surratt, Sönke Szidat, Martin Rauber, Kjetil Tørseth, Martin Album Ytre-Eide, Zhenfa Zhang, and Wenche Aas
Atmos. Chem. Phys., 24, 2731–2758, https://doi.org/10.5194/acp-24-2731-2024, https://doi.org/10.5194/acp-24-2731-2024, 2024
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We discuss carbonaceous aerosol (CA) observed at the high Arctic Zeppelin Observatory (2017 to 2020). We find that organic aerosol is a significant fraction of the Arctic aerosol, though less than sea salt aerosol and mineral dust, as well as non-sea-salt sulfate, originating mainly from anthropogenic sources in winter and from natural sources in summer, emphasizing the importance of wildfires for biogenic secondary organic aerosol and primary biological aerosol particles observed in the Arctic.
Wei Huang, Cheng Wu, Linyu Gao, Yvette Gramlich, Sophie L. Haslett, Joel Thornton, Felipe D. Lopez-Hilfiker, Ben H. Lee, Junwei Song, Harald Saathoff, Xiaoli Shen, Ramakrishna Ramisetty, Sachchida N. Tripathi, Dilip Ganguly, Feng Jiang, Magdalena Vallon, Siegfried Schobesberger, Taina Yli-Juuti, and Claudia Mohr
Atmos. Chem. Phys., 24, 2607–2624, https://doi.org/10.5194/acp-24-2607-2024, https://doi.org/10.5194/acp-24-2607-2024, 2024
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We present distinct molecular composition and volatility of oxygenated organic aerosol particles in different rural, urban, and mountain environments. We do a comprehensive investigation of the relationship between the chemical composition and volatility of oxygenated organic aerosol particles across different systems and environments. This study provides implications for volatility descriptions of oxygenated organic aerosol particles in different model frameworks.
Jing Cai, Juha Sulo, Yifang Gu, Sebastian Holm, Runlong Cai, Steven Thomas, Almuth Neuberger, Fredrik Mattsson, Marco Paglione, Stefano Decesari, Matteo Rinaldi, Rujing Yin, Diego Aliaga, Wei Huang, Yuanyuan Li, Yvette Gramlich, Giancarlo Ciarelli, Lauriane Quéléver, Nina Sarnela, Katrianne Lehtipalo, Nora Zannoni, Cheng Wu, Wei Nie, Juha Kangasluoma, Claudia Mohr, Markku Kulmala, Qiaozhi Zha, Dominik Stolzenburg, and Federico Bianchi
Atmos. Chem. Phys., 24, 2423–2441, https://doi.org/10.5194/acp-24-2423-2024, https://doi.org/10.5194/acp-24-2423-2024, 2024
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By combining field measurements, simulations and recent chamber experiments, we investigate new particle formation (NPF) and growth in the Po Valley, where both haze and frequent NPF occur. Our results show that sulfuric acid, ammonia and amines are the dominant NPF precursors there. A high NPF rate and a lower condensation sink lead to a greater survival probability for newly formed particles, highlighting the importance of gas-to-particle conversion for aerosol concentrations.
Kaori Kawana, Fumikazu Taketani, Kazuhiko Matsumoto, Yutaka Tobo, Yoko Iwamoto, Takuma Miyakawa, Akinori Ito, and Yugo Kanaya
Atmos. Chem. Phys., 24, 1777–1799, https://doi.org/10.5194/acp-24-1777-2024, https://doi.org/10.5194/acp-24-1777-2024, 2024
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Based on comprehensive shipborne observations, we found strong links between sea-surface biological materials and the formation of atmospheric fluorescent bioaerosols, cloud condensation nuclei, and ice-nucleating particles over the Arctic Ocean and Bering Sea during autumn 2019. Taking the wind-speed effect into account, we propose equations to approximate the links for this cruise, which can be used as a guide for modeling as well as for systematic comparisons with other observations.
Chen He, Hanxiong Che, Zier Bao, Yiliang Liu, Qing Li, Miao Hu, Jiawei Zhou, Shumin Zhang, Xiaojiang Yao, Quan Shi, Chunmao Chen, Yan Han, Lingshuo Meng, Xin Long, Fumo Yang, and Yang Chen
Atmos. Chem. Phys., 24, 1627–1639, https://doi.org/10.5194/acp-24-1627-2024, https://doi.org/10.5194/acp-24-1627-2024, 2024
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We examined the daily evolution of high molecular-weight organic compounds with a molecular weight of up to 1000 Da in order to comprehend their behaviors in the atmosphere under actual conditions. These compounds were proven to undergo multi-generation oxidation, carboxylation, and nitrification via both day- and nighttime chemistry.
Karine Desboeufs, Paola Formenti, Raquel Torres-Sánchez, Kerstin Schepanski, Jean-Pierre Chaboureau, Hendrik Andersen, Jan Cermak, Stefanie Feuerstein, Benoit Laurent, Danitza Klopper, Andreas Namwoonde, Mathieu Cazaunau, Servanne Chevaillier, Anaïs Feron, Cécile Mirande-Bret, Sylvain Triquet, and Stuart J. Piketh
Atmos. Chem. Phys., 24, 1525–1541, https://doi.org/10.5194/acp-24-1525-2024, https://doi.org/10.5194/acp-24-1525-2024, 2024
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This study investigates the fractional solubility of iron (Fe) in dust particles along the coast of Namibia, a critical region for the atmospheric Fe supply of the South Atlantic Ocean. Our results suggest a possible two-way interplay whereby marine biogenic emissions from the coastal marine ecosystems into the atmosphere would increase the solubility of Fe-bearing dust by photo-reduction processes. The subsequent deposition of soluble Fe could act to further enhance marine biogenic emissions.
Sunhye Kim, Jo Machesky, Drew R. Gentner, and Albert A. Presto
Atmos. Chem. Phys., 24, 1281–1298, https://doi.org/10.5194/acp-24-1281-2024, https://doi.org/10.5194/acp-24-1281-2024, 2024
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Cooking emissions are often an overlooked source of air pollution. We used a mobile lab to measure the characteristics of particles emitted from cooking sites in two cities. Our findings showed that cooking releases a substantial number of fine particles. While most emissions were similar, a bakery site showed distinctive chemical compositions with higher nitrogen compound levels. Thus, understanding the particle emissions from different cooking activities is crucial.
Nansi Fakhri, Robin Stevens, Arnold Downey, Konstantina Oikonomou, Jean Sciare, Charbel Afif, and Patrick L. Hayes
Atmos. Chem. Phys., 24, 1193–1212, https://doi.org/10.5194/acp-24-1193-2024, https://doi.org/10.5194/acp-24-1193-2024, 2024
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We investigated the chemical composition of atmospheric fine particles, their emission sources, and the potential human health risk associated with trace elements in particles for an urban site in Montréal over a 3-month period (August–November). This study represents the first time that such extensive composition measurements were included in an urban source apportionment study in Canada, and it provides greater resolution of fine-particle sources than has been previously achieved in Canada.
Hanjin Yoo, Li Wu, Hong Geng, and Chul-Un Ro
Atmos. Chem. Phys., 24, 853–867, https://doi.org/10.5194/acp-24-853-2024, https://doi.org/10.5194/acp-24-853-2024, 2024
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We conducted an investigation of atmospheric aerosols collected in Seoul, South Korea, during the KORUS-AQ campaign on a single-particle basis. We were able to identify their sources, the atmospheric fate, and the impacts of local emissions and long-range transport on aerosol composition. Additionally, we traced potential sources of non-exhaust heavy-metal particles. This comprehensive analysis provides valuable insights into the complex dynamics of urban aerosols.
Eric Schneider, Hendryk Czech, Olga Popovicheva, Marina Chichaeva, Vasily Kobelev, Nikolay Kasimov, Tatiana Minkina, Christopher Paul Rüger, and Ralf Zimmermann
Atmos. Chem. Phys., 24, 553–576, https://doi.org/10.5194/acp-24-553-2024, https://doi.org/10.5194/acp-24-553-2024, 2024
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This study provides insights into the complex chemical composition of long-range-transported wildfire plumes from Yakutia, which underwent different levels of atmospheric processing. With complementary mass spectrometric techniques, we improve our understanding of the chemical processes and atmospheric fate of wildfire plumes. Unprecedented high levels of carbonaceous aerosols crossed the polar circle with implications for the Arctic ecosystem and consequently climate.
Qiongqiong Wang, Shuhui Zhu, Shan Wang, Cheng Huang, Yusen Duan, and Jian Zhen Yu
Atmos. Chem. Phys., 24, 475–486, https://doi.org/10.5194/acp-24-475-2024, https://doi.org/10.5194/acp-24-475-2024, 2024
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We investigated short-term source apportionment of PM2.5 utilizing rolling positive matrix factorization (PMF) and online PM chemical speciation data, which included source-specific organic tracers collected over a period of 37 d during the winter of 2019–2020 in suburban Shanghai, China. The findings highlight that by imposing constraints on the primary source profiles, short-term PMF analysis successfully replicated both the individual primary sources and the total secondary sources.
Jiyuan Yang, Guoyang Lei, Jinfeng Zhu, Yutong Wu, Chang Liu, Kai Hu, Junsong Bao, Zitong Zhang, Weili Lin, and Jun Jin
Atmos. Chem. Phys., 24, 123–136, https://doi.org/10.5194/acp-24-123-2024, https://doi.org/10.5194/acp-24-123-2024, 2024
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The atmospheric pollution and formation mechanisms of particulate-bound alkyl nitrate in Beijing were studied. C9–C16 long-chain n-alkyl nitrates negatively correlated with O3 but positively correlated with PM2.5 and NO2, so they may not be produced during gas-phase homogeneous reactions in the photochemical process but form through reactions between alkanes and nitrates on PM surfaces. Particulate-bound n-alkyl nitrates strongly affect both haze pollution and atmospheric visibility.
Lisa Azzarello, Rebecca A. Washenfelder, Michael A. Robinson, Alessandro Franchin, Caroline C. Womack, Christopher D. Holmes, Steven S. Brown, Ann Middlebrook, Tim Newberger, Colm Sweeney, and Cora J. Young
Atmos. Chem. Phys., 23, 15643–15654, https://doi.org/10.5194/acp-23-15643-2023, https://doi.org/10.5194/acp-23-15643-2023, 2023
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We present a molecular size-resolved offline analysis of water-soluble brown carbon collected on an aircraft during FIREX-AQ. The smoke plumes were aged 0 to 5 h, where absorption was dominated by small molecular weight molecules, brown carbon absorption downwind did not consistently decrease, and the measurements differed from online absorption measurements of the same samples. We show how differences between online and offline absorption could be related to different measurement conditions.
Sebastian Zeppenfeld, Manuela van Pinxteren, Markus Hartmann, Moritz Zeising, Astrid Bracher, and Hartmut Herrmann
Atmos. Chem. Phys., 23, 15561–15587, https://doi.org/10.5194/acp-23-15561-2023, https://doi.org/10.5194/acp-23-15561-2023, 2023
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Marine carbohydrates are produced in the surface of the ocean, enter the atmophere as part of sea spray aerosol particles, and potentially contribute to the formation of fog and clouds. Here, we present the results of a sea–air transfer study of marine carbohydrates conducted in the high Arctic. Besides a chemo-selective transfer, we observed a quick atmospheric aging of carbohydrates, possibly as a result of both biotic and abiotic processes.
Xing Wei, Yanjie Shen, Xiao-Ying Yu, Yang Gao, Huiwang Gao, Ming Chu, Yujiao Zhu, and Xiaohong Yao
Atmos. Chem. Phys., 23, 15325–15350, https://doi.org/10.5194/acp-23-15325-2023, https://doi.org/10.5194/acp-23-15325-2023, 2023
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We investigate the contribution of grown new particles to Nccn at a rural mountain site in the North China Plain. The total particle number concentrations (Ncn) observed on 8 new particle formation (NPF) days were higher compared to non-NPF days. The Nccn at 0.2 % supersaturation (SS) and 0.4 % SS on the NPF days was significantly lower than on non-NPF days. Only one of eight NPF events had detectable net contributions to Nccn at 0.4 % SS and 1.0 % SS with increased κ values.
Yuquan Gong, Ru-Jin Huang, Lu Yang, Ting Wang, Wei Yuan, Wei Xu, Wenjuan Cao, Yang Wang, and Yongjie Li
Atmos. Chem. Phys., 23, 15197–15207, https://doi.org/10.5194/acp-23-15197-2023, https://doi.org/10.5194/acp-23-15197-2023, 2023
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This study reveals the large day–night differences in brown carbon (BrC) chromophore composition, which was not known previously. The results provide insights into the effects of atmospheric processes and emissions on BrC composition.
Ryan N. Farley, Sonya Collier, Christopher D. Cappa, Leah R. Williams, Timothy B. Onasch, Lynn M. Russell, Hwajin Kim, and Qi Zhang
Atmos. Chem. Phys., 23, 15039–15056, https://doi.org/10.5194/acp-23-15039-2023, https://doi.org/10.5194/acp-23-15039-2023, 2023
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Soot particles, also known as black carbon (BC), have important implications for global climate and regional air quality. After the particles are emitted, BC can be coated with other material, impacting the aerosol properties. We selectively measured the composition of particles containing BC to explore their sources and chemical transformations in the atmosphere. We focus on a persistent, multiday fog event in order to study the effects of chemical reactions occurring within liquid droplets.
Wenshuai Li, Yuxuan Qi, Yingchen Liu, Guanru Wu, Yanjing Zhang, Jinhui Shi, Wenjun Qu, Lifang Sheng, Wencai Wang, Daizhou Zhang, and Yang Zhou
EGUsphere, https://doi.org/10.5194/egusphere-2023-2698, https://doi.org/10.5194/egusphere-2023-2698, 2023
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Aerosol particles from mainland can transport to oceans and deposit, providing soluble Fe and affecting phytoplankton growth. Thus, we studied the dissolution process of aerosol Fe and found that photochemistry played a key role in promoting Fe dissolution in clean conditions. RH-dependent reactions were more influential in slightly-polluted conditions. These results highlight the distinct roles of two weather-related parameters (radiation and RH) in influencing geochemical cycles related to Fe.
Fuzhen Shen, Michaela I. Hegglin, and Yue Yuan
EGUsphere, https://doi.org/10.5194/egusphere-2023-2425, https://doi.org/10.5194/egusphere-2023-2425, 2023
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We attempt to use a novel structural Self-Organising Map and Machine Learning models to identify a weather system and quantify the importance of each meteorological factor in driving the unexpected PM2.5 and O3 changes under the specific weather system during the COVID-19 lockdown in China. The result highlights temperature under the double-centre high-pressure system plays the most crucial role in abnormal events.
Xiaoxiao Li, Yijing Chen, Yuyang Li, Runlong Cai, Yiran Li, Chenjuan Deng, Jin Wu, Chao Yan, Hairong Cheng, Yongchun Liu, Markku Kulmala, Jiming Hao, James N. Smith, and Jingkun Jiang
Atmos. Chem. Phys., 23, 14801–14812, https://doi.org/10.5194/acp-23-14801-2023, https://doi.org/10.5194/acp-23-14801-2023, 2023
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Near-continuous measurements show the composition, sources, and seasonal variations of ultrafine particles (UFPs) in urban Beijing. Vehicle and cooking emissions and new particle formation are the main sources of UFPs, and aqueous/heterogeneous processes increase UFP mode diameters. UFPs are the highest in winter due to the highest primary particle emission rates and new particle formation rates, and CHO fractions are the highest in summer due to the strongest photooxidation.
Jiaqi Wang, Jian Gao, Fei Che, Xin Yang, Yuanqin Yang, Lei Liu, Yan Xiang, and Haisheng Li
Atmos. Chem. Phys., 23, 14715–14733, https://doi.org/10.5194/acp-23-14715-2023, https://doi.org/10.5194/acp-23-14715-2023, 2023
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Regional-scale observations of surface O3, PM2.5 and its major chemical species, mixing layer height (MLH), and other meteorological parameters were made in the North China Plain during summer. Unlike the cold season, synchronized increases in MDA8 O3 and PM2.5 under medium MLH conditions have been witnessed. The increasing trend of PM2.5 was associated with enhanced secondary chemical formation. The correlation between MLH and secondary air pollutants should be treated with care in hot seasons.
Takuma Miyakawa, Akinori Ito, Chunmao Zhu, Atsushi Shimizu, Erika Matsumoto, Yusuke Mizuno, and Yugo Kanaya
Atmos. Chem. Phys., 23, 14609–14626, https://doi.org/10.5194/acp-23-14609-2023, https://doi.org/10.5194/acp-23-14609-2023, 2023
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This study conducted semi-continuous measurements of PM2.5 aerosols and their elemental composition in western Japan, during spring 2018. It analyzed the emissions, transport, and wet removal of elements such as Pb, Cu, Fe, and Mn. It also assessed the accuracy of modeled concentrations and found overestimations of BC and underestimations of Cu and anthropogenic Fe in East Asia. Insights into emissions, removals, and source apportionment of trace metals in the East Asian outflow were provided.
Jingjing Meng, Yachen Wang, Yuanyuan Li, Tonglin Huang, Zhifei Wang, Yiqiu Wang, Min Chen, Zhanfang Hou, Houhua Zhou, Keding Lu, Kimitaka Kawamura, and Pingqing Fu
Atmos. Chem. Phys., 23, 14481–14503, https://doi.org/10.5194/acp-23-14481-2023, https://doi.org/10.5194/acp-23-14481-2023, 2023
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This study investigated the effect of COVID-19 lockdown (LCD) measures on the formation and evolutionary process of diacids and related compounds from field observations. Results demonstrate that more aged organic aerosols are observed during the LCD due to the enhanced photochemical oxidation. Our study also found that the reactivity of 13C was higher than that of 12C in the gaseous photochemical oxidation, leading to higher δ13C values of C2 during the LCD than before the LCD.
Christopher J. Hennigan, Michael McKee, Vikram Pratap, Bryanna Boegner, Jasper Reno, Lucia Garcia, Madison McLaren, and Sara M. Lance
Atmos. Chem. Phys., 23, 14437–14449, https://doi.org/10.5194/acp-23-14437-2023, https://doi.org/10.5194/acp-23-14437-2023, 2023
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This study characterized the optical properties of light-absorbing organic compounds, called brown carbon (BrC), in atmospheric cloud water samples. In all samples, light absorption by BrC increased linearly with increasing pH. There was variability in the sensitivity of the absorption–pH relationship, depending on the degree of influence from fire emissions. Overall, these results show that the climate forcing of BrC is quite strongly affected by its pH-dependent absorption.
Máté Vörösmarty, Gaëlle Uzu, Jean-Luc Jaffrezo, Pamela Dominutti, Zsófia Kertész, Enikő Papp, and Imre Salma
Atmos. Chem. Phys., 23, 14255–14269, https://doi.org/10.5194/acp-23-14255-2023, https://doi.org/10.5194/acp-23-14255-2023, 2023
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Poor air quality caused by high concentrations of particulate matter is one of the most severe public health concerns for humans worldwide. One of the most important biological mechanisms inducing adverse health effects is the oxidant–antioxidant imbalance. We showed that the oxidative stress changed substantially and in a complex manner with location and season. Biomass burning exhibited the dominant influence, while motor vehicles played an important role in the non-heating period.
Da Lu, Hao Li, Mengke Tian, Guochen Wang, Xiaofei Qin, Na Zhao, Juntao Huo, Fan Yang, Yanfen Lin, Jia Chen, Qingyan Fu, Yusen Duan, Xinyi Dong, Congrui Deng, Sabur F. Abdullaev, and Kan Huang
Atmos. Chem. Phys., 23, 13853–13868, https://doi.org/10.5194/acp-23-13853-2023, https://doi.org/10.5194/acp-23-13853-2023, 2023
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Environmental conditions during dust are usually not favorable for secondary aerosol formation. However in this study, an unusual dust event was captured in a Chinese mega-city and showed “anomalous” meteorology and a special dust backflow transport pathway. The underlying formation mechanisms of secondary aerosols are probed in the context of this special dust event. This study shows significant implications for the varying dust aerosol chemistry in the future changing climate.
Thomas Audoux, Benoit Laurent, Karine Desboeufs, Gael Noyalet, Franck Maisonneuve, Olivier Lauret, and Servanne Chevaillier
Atmos. Chem. Phys., 23, 13485–13503, https://doi.org/10.5194/acp-23-13485-2023, https://doi.org/10.5194/acp-23-13485-2023, 2023
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In the Paris region, a campaign was conducted to study wet deposition of aerosol particles during rainfall events. Simultaneous measurements of aerosol and wet deposition allowed us to discuss their transfer from the atmosphere to rain. Chemical evolution within events revealed meteorology, atmospheric conditions and local vs. long range sources as key factors. This study highlights the variability of wet deposition and the need to consider event-specific factors to understand its mechanisms.
Ting Yang, Yu Xu, Qing Ye, Yi-Jia Ma, Yu-Chen Wang, Jian-Zhen Yu, Yu-Sen Duan, Chen-Xi Li, Hong-Wei Xiao, Zi-Yue Li, Yue Zhao, and Hua-Yun Xiao
Atmos. Chem. Phys., 23, 13433–13450, https://doi.org/10.5194/acp-23-13433-2023, https://doi.org/10.5194/acp-23-13433-2023, 2023
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In this study, 130 OS species were quantified in ambient fine particulate matter (PM2.5) collected in urban and suburban Shanghai (East China) in the summer of 2021. The daytime OS formation was concretized based on the interactions among OSs, ultraviolet (UV), ozone (O3), and sulfate. Our finding provides field evidence for the influence of photochemical process and anthropogenic sulfate on OS formation and has important implications for the mitigation of organic particulate pollution.
Shan Wang, Kezheng Liao, Zijing Zhang, Yuk Ying Cheng, Qiongqiong Wang, Hanzhe Chen, and Jian Zhen Yu
EGUsphere, https://doi.org/10.5194/egusphere-2023-2286, https://doi.org/10.5194/egusphere-2023-2286, 2023
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In this work, hourly primary and secondary organic carbon were estimated by a novel Bayesian inference approach in suburban Hong Kong. Their multi-temporal scale variations and evolution characteristics during PM2.5 episodes were examined. The methodology could serve as a guide for other locations with similar monitoring capabilities. The observation-based results are helpful for understanding the evolving nature of secondary organic aerosols and refining the accuracy of model simulations.
Marco Paglione, David C. S. Beddows, Anna Jones, Thomas Lachlan-Cope, Matteo Rinaldi, Stefano Decesari, Francesco Manarini, Mara Russo, Karam Mansour, Roy M. Harrison, Andrea Mazzanti, Emilio Tagliavini, and Manuel Dall'Osto
EGUsphere, https://doi.org/10.5194/egusphere-2023-2275, https://doi.org/10.5194/egusphere-2023-2275, 2023
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Applying factor analysis techniques to H-NMR spectra, we present the Organic Aerosol (OA) source apportionment of PM1 samples collected in parallel at two peri-Antarctic stations, namely Signy and Halley, important to investigate aerosol-climate interactions in an unperturbed atmosphere. Our results show remarkable differences between pelagic (open ocean) and sympagic (sea-ice influenced) air masses and indicate that various sources and processes are controlling Antarctic aerosols.
Miao Zhong, Jianzhong Xu, Huiqin Wang, Li Gao, Haixia Zhu, Lixiang Zhai, Xinghua Zhang, and Wenhui Zhao
Atmos. Chem. Phys., 23, 12609–12630, https://doi.org/10.5194/acp-23-12609-2023, https://doi.org/10.5194/acp-23-12609-2023, 2023
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This study focus on coal-combustion-dominated aerosol in urban areas in northwestern China and combines the results of optical measurement and chemical analysis to deduce the evolution of these characteristics in the atmosphere, which has previously been unknown. The results provide insights into the effects of atmospheric processes and emissions on brown carbon properties.
Li Wu, Hyo-Jin Eom, Hanjin Yoo, Dhrubajyoti Gupta, Hye-Rin Cho, Pingqing Fu, and Chul-Un Ro
Atmos. Chem. Phys., 23, 12571–12588, https://doi.org/10.5194/acp-23-12571-2023, https://doi.org/10.5194/acp-23-12571-2023, 2023
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Hygroscopicity of ambient marine aerosols is of critical relevance to investigate their atmospheric impacts, which, however, remain uncertain due to their complex compositions and mixing states. Therefore, a study on the hygroscopic behavior of ambient marine aerosols for understanding the phase states when interacting with water vapor at different RH levels and their subsequent impacts on the heterogeneous chemical reactions, atmospheric environment, and human health is of vital importance.
Yutong Liang, Rebecca A. Wernis, Kasper Kristensen, Nathan M. Kreisberg, Philip L. Croteau, Scott C. Herndon, Arthur W. H. Chan, Nga L. Ng, and Allen H. Goldstein
Atmos. Chem. Phys., 23, 12441–12454, https://doi.org/10.5194/acp-23-12441-2023, https://doi.org/10.5194/acp-23-12441-2023, 2023
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We measured the gas–particle partitioning behaviors of biomass burning markers and examined the effect of wildfire organic aerosol on the partitioning of semivolatile organic compounds. Most compounds measured are less volatile than model predictions. Wildfire aerosol enhanced the condensation of polar compounds and caused some nonpolar (e.g., polycyclic aromatic hydrocarbons) compounds to partition into the gas phase, thus affecting their lifetimes in the atmosphere and the mode of exposure.
Bojiang Su, Xinhui Bi, Zhou Zhang, Yue Liang, Congbo Song, Tao Wang, Yaohao Hu, Lei Li, Zhen Zhou, Jinpei Yan, Xinming Wang, and Guohua Zhang
Atmos. Chem. Phys., 23, 10697–10711, https://doi.org/10.5194/acp-23-10697-2023, https://doi.org/10.5194/acp-23-10697-2023, 2023
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During the R/V Xuelong cruise observation over the Ross Sea, Antarctica, the mass concentrations of water-soluble Ca2+ and the mass spectra of individual calcareous particles were measured. Our results indicated that lower temperature, lower wind speed, and the presence of sea ice may facilitate Ca2+ enrichment in sea spray aerosols and highlighted the potential contribution of organically complexed calcium to calcium enrichment, which is inaccurate based solely on water-soluble Ca2+ estimation.
Valeria Mardoñez, Marco Pandolfi, Lucille Joanna S. Borlaza, Jean-Luc Jaffrezo, Andrés Alastuey, Jean-Luc Besombes, Isabel Moreno R., Noemi Perez, Griša Močnik, Patrick Ginot, Radovan Krejci, Vladislav Chrastny, Alfred Wiedensohler, Paolo Laj, Marcos Andrade, and Gaëlle Uzu
Atmos. Chem. Phys., 23, 10325–10347, https://doi.org/10.5194/acp-23-10325-2023, https://doi.org/10.5194/acp-23-10325-2023, 2023
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La Paz and El Alto are two fast-growing, high-altitude Bolivian cities forming the second-largest metropolitan area in the country. The sources of particulate matter (PM) in this conurbation were not previously investigated. This study identified 11 main sources of PM, of which dust and vehicular emissions stand out as the main ones. The influence of regional biomass combustion and local waste combustion was also observed, with the latter being a major source of hazardous compounds.
Sayako Ueda, Yoko Iwamoto, Fumikazu Taketani, Mingxu Liu, and Hitoshi Matsui
Atmos. Chem. Phys., 23, 10117–10135, https://doi.org/10.5194/acp-23-10117-2023, https://doi.org/10.5194/acp-23-10117-2023, 2023
Short summary
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We examine iron in atmospheric fine aerosol particles collected over the Indian Ocean during shipborne observations in November 2018. Transmission electron microscopy analysis with water dialysis shows that various types of iron (fly ash, iron oxide, and mineral dust) co-exist with ammonium sulfate and that their solubility differs depending on the iron type. Using PM2.5 bulk samples and global model simulations, we elucidate their origins, aging, and implications for present iron simulations.
Farhan R. Nursanto, Roy Meinen, Rupert Holzinger, Maarten C. Krol, Xinya Liu, Ulrike Dusek, Bas Henzing, and Juliane L. Fry
Atmos. Chem. Phys., 23, 10015–10034, https://doi.org/10.5194/acp-23-10015-2023, https://doi.org/10.5194/acp-23-10015-2023, 2023
Short summary
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Particulate matter (PM) is a harmful air pollutant that depends on the complex mixture of natural and anthropogenic emissions into the atmosphere. Thus, in different regions and seasons, the way that PM is formed and grows can differ. In this study, we use a combined statistical analysis of the chemical composition and particle size distribution to determine what drives particle formation and growth across seasons, using varying wind directions to elucidate the role of different sources.
Kohei Sakata, Aya Sakaguchi, Yoshiaki Yamakawa, Chihiro Miyamoto, Minako Kurisu, and Yoshio Takahashi
Atmos. Chem. Phys., 23, 9815–9836, https://doi.org/10.5194/acp-23-9815-2023, https://doi.org/10.5194/acp-23-9815-2023, 2023
Short summary
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Anthropogenic iron is the dominant source of dissolved Fe in aerosol particles, but its contribution to dissolved Fe in aerosol particles has not been quantitatively evaluated. We established the molar concentration ratio of dissolved Fe to dissolved Al as a new indicator to evaluate the contribution of anthropogenic iron. As a result, about 10 % of dissolved Fe in aerosol particles was derived from anthropogenic iron when aerosol particles were transported from East Asia to the Pacific Ocean.
Li Li, Qiyuan Wang, Jie Tian, Huikun Liu, Yong Zhang, Steven Sai Hang Ho, Weikang Ran, and Junji Cao
Atmos. Chem. Phys., 23, 9597–9612, https://doi.org/10.5194/acp-23-9597-2023, https://doi.org/10.5194/acp-23-9597-2023, 2023
Short summary
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The Tibetan Plateau has a unique geographical location, but there is a lack of detailed research on the real-time characteristics of full aerosol composition. This study elaborates the changes in chemical characteristics between transport and local fine particles during the pre-monsoon, reveals the size distribution and the mixing states of different individual particles, and highlights the contributions of photooxidation and aqueous reaction to the formation of the secondary species.
Erin K. Boedicker, Elisabeth Andrews, Patrick J. Sheridan, and Patricia K. Quinn
Atmos. Chem. Phys., 23, 9525–9547, https://doi.org/10.5194/acp-23-9525-2023, https://doi.org/10.5194/acp-23-9525-2023, 2023
Short summary
Short summary
We present 15 years of measurements from a marine site on the northern California coast and characterize the seasonal trends of aerosol ion composition and optical properties at the site. We investigate the relationship between the chemical and optical properties and show that they both support similar seasonal variations in aerosol sources at the site. Additionally, we show through comparisons to other marine aerosol observations that the site is representative of a clean marine environment.
Cited articles
Adachi, K. and Tainosho, Y.: Characterization of heavy metal particles
embedded in tire dust, Environ. Int., 30, 1009–1017,
https://doi.org/10.1016/j.envint.2004.04.004, 2004.
Alas, H. D., Müller, T., Birmili, W., Kecorius, S., Cambaliza, M. O.,
Simpas, J. B., Cayetano, M., Weinhold, K., Vallar, E., Galvez, M. C., and
Wiedensohler, A.: Spatial Characterization of Black Carbon Mass
Concentration in the Atmosphere of a Southeast Asian Megacity: An Air
Quality Case Study for Metro Manila, Philippines, Aerosol. Air Qual. Res., 18, 2301–2317,
https://doi.org/10.4209/aaqr.2017.08.0281, 2017.
Allen, H. C., Laux, J. M., Vogt, R., FinlaysonPitts, B. J., and Hemminger,
J. C.: Water-induced reorganization of ultrathin nitrate films on NaCl:
Implications for the tropospheric chemistry of sea salt particles, J. Phys.
Chem., 100, 6371–6375, https://doi.org/10.1021/jp953675a, 1996.
Allen, A. G., Nemitz, E., Shi, J. P., Harrison, R. M., and Greenwood, J. C.:
Size distributions of trace metals in atmospheric aerosols in the United
Kingdom, Atmos. Environ., 35, 4581–4591, https://doi.org/10.1016/S1352-2310(01)00190-X,
2001.
Almeida, G. P., Bittencourt, A. T., Evangelista, M. S., Vieira-Filho, M. S.,
and Fornaro, A.: Characterization of aerosol chemical composition from urban
pollution in Brazil and its possible impacts on the aerosol hygroscopicity
and size distribution, Atmos. Environ., 202, 149–159,
https://doi.org/10.1016/j.atmosenv.2019.01.024, 2019.
Anderson, J. R., Aggett, F. J., Buseck, P. R., Germani, M. S., and Shattuck,
T. W.: Chemistry of Individual Aerosol-Particles from Chandler, Arizona, an
Arid Urban-Environment, Environ. Sci. Technol., 22, 811–818, https://doi.org/10.1021/es00172a011, 1988.
Aswini, A. R., Hegde, P., Nair, P. R., and Aryasree, S.: Seasonal changes in
carbonaceous aerosols over a tropical coastal location in response to
meteorological processes, Sci. Total Environ., 656, 1261–1279,
https://doi.org/10.1016/j.scitotenv.2018.11.366, 2019.
Bagtasa, G., Cayetano, M. G., and Yuan, C.-S.: Seasonal variation and chemical characterization of PM2.5 in northwestern Philippines, Atmos. Chem. Phys., 18, 4965–4980, https://doi.org/10.5194/acp-18-4965-2018, 2018.
Bautista, A. T., Pabroa, P. C. B., Santos, F. L., Racho, J. M. D., and
Quirit, L. L.: Carbonaceous particulate matter characterization in an urban
and a rural site in the Philippines, Atmos. Pollut. Res., 5, 245–252,
https://doi.org/10.5094/Apr.2014.030, 2014.
Begam, G. R., Vachaspati, C. V., Ahammed, Y. N., Kumar, K. R., Reddy, R. R.,
Sharma, S. K., Saxena, M., and Mandal, T. K.: Seasonal characteristics of
water-soluble inorganic ions and carbonaceous aerosols in total suspended
particulate matter at a rural semi-arid site, Kadapa (India), Environ.
Sci. Pollut. Res., 24, 1719–1734, https://doi.org/10.1007/s11356-016-7917-1,
2017.
Behera, S. N., Betha, R., Huang, X., and Balasubramanian, R.:
Characterization and estimation of human airway deposition of size-resolved
particulate-bound trace elements during a recent haze episode in Southeast
Asia, Environ. Sci. Pollut. Res., 22, 4265–4280, https://doi.org/10.1007/s11356-014-3645-6, 2015.
Berresheim, H.: Biogenic Sulfur Emissions from the Sub-Antarctic and
Antarctic Oceans, J. Geophys. Res.-Atmos., 92, 13245–13262,
https://doi.org/10.1029/JD092iD11p13245, 1987.
Braun, R. A., Dadashazar, H., MacDonald, A. B., Aldhaif, A. M., Maudlin, L.
C., Crosbie, E., Aghdam, M. A., Mardi, A. H., and Sorooshian, A.: Impact of
Wildfire Emissions on Chloride and Bromide Depletion in Marine Aerosol
Particles, Environ. Sci. Technol., 51, 9013–9021, https://doi.org/10.1021/acs.est.7b02039,
2017.
Buchholz, B. A. and Landsberger, S.: Trace-Metal Analysis of
Size-Fractioned Municipal Solid-Waste Incinerator Fly-Ash and Its Leachates,
J. Environ. Sci. Heal. A, 28, 423–441, https://doi.org/10.1080/10934529309375887, 1993.
Burgermeister, S. and Georgii, H. W.: Distribution of Methanesulfonate, Nss
Sulfate and Dimethylsulfide over the Atlantic and the North-Sea, Atmos.
Environ. A-Gen., 25, 587–595, https://doi.org/10.1016/0960-1686(91)90056-D, 1991.
Chen, Y. Z., Shah, N., Huggins, F. E., and Huffman, G. P.: Microanalysis of
ambient particles from Lexington, KY, by electron microscopy, Atmos. Environ.,
40, 651–663, https://doi.org/10.1016/j.atmosenv.2005.09.036, 2006.
Chithra, V. S. and Nagendra, S. M. S.: Chemical and morphological
characteristics of indoor and outdoor particulate matter in an urban
environment, Atmos. Environ., 77, 579–587, https://doi.org/10.1016/j.atmosenv.2013.05.044,
2013.
Chuang, M.-T., Chang, S.-C., Lin, N.-H., Wang, J.-L., Sheu, G.-R., Chang,
Y.-J., and Lee, C.-T.: Aerosol chemical properties and related pollutants
measured in Dongsha Island in the northern South China Sea during
7-SEAS/Dongsha Experiment, Atmos. Environ., 78, 82–92,
https://doi.org/10.1016/j.atmosenv.2012.05.014, 2013.
Clarke, A. D., Shinozuka, Y., Kapustin, V. N., Howell, S., Huebert, B.,
Doherty, S., Anderson, T., Covert, D., Anderson, J., Hua, X., Moore, K. G.,
McNaughton, C., Carmichael, G., and Weber, R.: Size distributions and
mixtures of dust and black carbon aerosol in Asian outflow: Physiochemistry
and optical properties, J. Geophys. Res.-Atmos., 109, D15S09,
https://doi.org/10.1029/2003jd004378, 2004.
Coggon, M. M., Sorooshian, A., Wang, Z., Metcalf, A. R., Frossard, A. A.,
Lin, J. J., Craven, J. S., Nenes, A., Jonsson, H. H., Russell, L. M.,
Flagan, R. C., and Seinfeld, J. H.: Ship impacts on the marine atmosphere:
insights into the contribution of shipping emissions to the properties of
marine aerosol and clouds, Atmos. Chem. Phys., 12, 8439–8458,
https://doi.org/10.5194/acp-12-8439-2012, 2012.
Cohen, D. D., Stelcer, E., Santos, F. L., Prior, M., Thompson, C., and
Pabroa, P. C. B.: Fingerprinting and source apportionment of fine particle
pollution in Manila by IBA and PMF techniques: A 7-year study, X-Ray
Spectrom, 38, 18–25, https://doi.org/10.1002/xrs.1112, 2009.
Crosbie, E., Sorooshian, A., Monfared, N. A., Shingler, T., and Esmaili, O.:
A Multi-Year Aerosol Characterization for the Greater Tehran Area Using
Satellite, Surface, and Modeling Data, Atmosphere-Basel, 5, 178–197,
https://doi.org/10.3390/atmos5020178, 2014.
Crosbie, E., Youn, J. S., Balch, B., Wonaschutz, A., Shingler, T., Wang, Z.,
Conant, W. C., Betterton, E. A., and Sorooshian, A.: On the competition
among aerosol number, size and composition in predicting CCN variability: a
multi-annual field study in an urbanized desert, Atmos. Chem. Phys., 15,
6943–6958, https://doi.org/10.5194/acp-15-6943-2015, 2015.
Cruz, F. T., Narisma, G. T., Villafuerte, M. Q., Chua, K. U. C., and
Olaguera, L. M.: A climatological analysis of the southwest monsoon rainfall
in the Philippines, Atmos. Res., 122, 609–616, https://doi.org/10.1016/j.atmosres.2012.06.010,
2013.
Csavina, J., Landazuri, A., Wonaschutz, A., Rine, K., Rheinheimer, P.,
Barbaris, B., Conant, W., Saez, A. E., and Betterton, E. A.: Metal and
Metalloid Contaminants in Atmospheric Aerosols from Mining Operations, Water
Air Soil Poll., 221, 145–157, https://doi.org/10.1007/s11270-011-0777-x, 2011.
Dasgupta, P. K., Campbell, S. W., Al-Horr, R. S., Ullah, S. M. R., Li, J.
Z., Amalfitano, C., and Poor, N. D.: Conversion of sea salt aerosol to
NaNO3 and the production of HCl: Analysis of temporal behavior of aerosol
chloride/nitrate and gaseous HCl∕HNO3 concentrations with AIM, Atmos.
Environ., 41, 4242–4257, https://doi.org/10.1016/j.atmosenv.2006.09.054, 2007.
Dumanoglu, Y., Kara, M., Altiok, H., Odabasi, M., Elbir, T., and Bayram, A.:
Spatial and seasonal variation and source apportionment of volatile organic
compounds (VOCs) in a heavily industrialized region, Atmos. Environ., 98,
168–178, https://doi.org/10.1016/j.atmosenv.2014.08.048, 2014.
Ervens, B., Sorooshian, A., Aldhaif, A. M., Shingler, T., Crosbie, E.,
Ziemba, L., Campuzano-Jost, P., Jimenez, J. L., and Wisthaler, A.: Is there
an aerosol signature of chemical cloud processing?, Atmos. Chem. Phys., 18,
16099–16119, https://doi.org/10.5194/acp-18-16099-2018, 2018.
Facchini, M. C., Decesari, S., Rinaldi, M., Carbone, C., Finessi, E.,
Mircea, M., Fuzzi, S., Moretti, F., Tagliavini, E., Ceburnis, D., and
O'Dowd, C. D.: Important Source of Marine Secondary Organic Aerosol from
Biogenic Amines, Environ. Sci. Technol., 42, 9116–9121, https://doi.org/10.1021/es8018385,
2008.
Farren, N. J., Dunmore, R. E., Mead, M. I., Mohd Nadzir, M. S., Samah, A.
A., Phang, S. M., Bandy, B. J., Sturges, W. T., and Hamilton, J. F.:
Chemical characterisation of water-soluble ions in atmospheric particulate
matter on the east coast of Peninsular Malaysia, Atmos. Chem. Phys., 19,
1537–1553, https://doi.org/10.5194/acp-19-1537-2019, 2019.
Fitzgerald, J. W.: Marine Aerosols – a Review, Atmos. Environ. A-Gen., 25,
533–545, https://doi.org/10.1016/0960-1686(91)90050-H, 1991.
Fraser, M. P., Cass, G. R., and Simoneit, B. R. T.: Air quality model
evaluation data for organic, 6. C-3-C-24 organic acids, Environ. Sci.
Technol., 37, 446–453, https://doi.org/10.1021/es0209262, 2003.
Fu, P. Q., Kawamura, K., Chen, J., Li, J., Sun, Y. L., Liu, Y., Tachibana,
E., Aggarwal, S. G., Okuzawa, K., Tanimoto, H., Kanaya, Y., and Wang, Z. F.:
Diurnal variations of organic molecular tracers and stable carbon isotopic
composition in atmospheric aerosols over Mt. Tai in the North China Plain:
an influence of biomass burning, Atmos. Chem. Phys., 12, 8359–8375,
https://doi.org/10.5194/acp-12-8359-2012, 2012.
Fujimori, T., Takigami, H., Agusa, T., Eguchi, A., Bekki, K., Yoshida, A.,
Terazono, A., and Ballesteros, F. C.: Impact of metals in surface matrices
from formal and informal electronic-waste recycling around Metro Manila, the
Philippines, and intra-Asian comparison, J. Hazard Mater., 221/222, 139–146,
https://doi.org/10.1016/j.jhazmat.2012.04.019, 2012.
Ge, X. L., Wexler, A. S., and Clegg, S. L.: Atmospheric amines – Part I. A
review, Atmos. Environ., 45, 524–546, https://doi.org/10.1016/j.atmosenv.2010.10.012, 2011.
Gietl, J. K., Lawrence, R., Thorpe, A. J., and Harrison, R. M.:
Identification of brake wear particles and derivation of a quantitative
tracer for brake dust at a major road, Atmos. Environ., 44, 141–146,
https://doi.org/10.1016/j.atmosenv.2009.10.016, 2010.
Gullett, B. K., Linak, W. P., Touati, A., Wasson, S. J., Gatica, S., and
King, C. J.: Characterization of air emissions and residual ash from open
burning of electronic wastes during simulated rudimentary recycling
operations, J. Mater. Cycles Waste, 9, 69–79, https://doi.org/10.1007/s10163-006-0161-x, 2007.
Harrison, R. M., Beddows, D. C. S., and Dall'Osto, M.: PMF Analysis of
Wide-Range Particle Size Spectra Collected on a Major Highway, Environ. Sci.
Technol., 45, 5522–5528, https://doi.org/10.1021/es2006622, 2011.
Harrison, R. M., Jones, A. M., Gietl, J., Yin, J. X., and Green, D. C.:
Estimation of the Contributions of Brake Dust, Tire Wear, and Resuspension
to Nonexhaust Traffic Particles Derived from Atmospheric Measurements,
Environ. Sci. Technol., 46, 6523–6529, https://doi.org/10.1021/es300894r, 2012.
Hitzenberger, R. and Tohno, S.: Comparison of black carbon (BC) aerosols in
two urban areas – concentrations and size distributions, Atmos.
Environ., 35, 2153–2167, https://doi.org/10.1016/S1352-2310(00)00480-5,
2001.
Hopke, P. K., Cohen, D. D., Begum, B. A., Biswas, S. K., Ni, B., Pandit, G.
G., Santoso, M., Chung, Y. S., Davy, P., Markwitz, A., Waheed, S., Siddique,
N., Santos, F. L., Pabroa, P. C. B., Seneviratne, M. C. S., Wimolwattanapun,
W., Bunprapob, S., Vuong, T. B., Duy Hien, P., and Markowicz, A.: Urban air
quality in the Asian region, Sci. Total Environ., 404, 103–112,
https://doi.org/10.1016/j.scitotenv.2008.05.039, 2008.
Huang, S. L., Rahn, K. A., and Arimoto, R.: Testing and optimizing two
factor-analysis techniques on aerosol at Narragansett, Rhode Island, Atmos.
Environ., 33, 2169–2185, https://doi.org/10.1016/S1352-2310(98)00324-0, 1999.
Iijima, A., Sato, K., Yano, K., Tago, H., Kato, M., Kimura, H., and Furuta,
N.: Particle size and composition distribution analysis of automotive brake
abrasion dusts for the evaluation of antimony sources of airborne
particulate matter, Atmos. Environ., 41, 4908–4919,
https://doi.org/10.1016/j.atmosenv.2007.02.005, 2007.
Kahnert, M., Nousiainen, T., and Veihelmann, B.: Spherical and spheroidal
model particles as an error source in aerosol climate forcing and radiance
computations: A case study for feldspar aerosols, J. Geophys. Res.-Atmos., 110,
D18S13, https://doi.org/10.1029/2004jd005558, 2005.
Kautzman, K. E., Surratt, J. D., Chan, M. N., Chan, A. W. H., Hersey, S. P.,
Chhabra, P. S., Dalleska, N. F., Wennberg, P. O., Flagan, R. C., and
Seinfeld, J. H.: Chemical Composition of Gas- and Aerosol-Phase Products
from the Photooxidation of Naphthalene, J. Phys. Chem. A, 114, 913–934,
https://doi.org/10.1021/jp908530s, 2010.
Kawamura, K. and Ikushima, K.: Seasonal-Changes in the Distribution of
Dicarboxylic-Acids in the Urban Atmosphere, Environ. Sci. Technol., 27,
2227–2235, https://doi.org/10.1021/es00047a033, 1993.
Kawamura, K. and Kaplan, I. R.: Motor Exhaust Emissions as a Primary Source
for Dicarboxylic-Acids in Los-Angeles Ambient Air, Environ. Sci. Technol., 21,
105–110, https://doi.org/10.1021/es00155a014, 1987.
Kawamura, K. and Sakaguchi, F.: Molecular distributions of water soluble
dicarboxylic acids in marine aerosols over the Pacific Ocean including
tropics, J. Geophys. Res.-Atmos., 104, 3501–3509, https://doi.org/10.1029/1998jd100041,
1999.
Kecorius, S., Madueño, L., Löndahl, J., Vallar, E., Galvez, M. C.,
Idolor, L. F., Gonzaga-Cayetano, M., Müller, T., Birmili, W., and
Wiedensohler, A.: Respiratory tract deposition of inhaled roadside ultrafine
refractory particles in a polluted megacity of South-East Asia, Sci. Total Environ., 663, 265–274,
https://doi.org/10.1016/j.scitotenv.2019.01.338, 2019.
Kecorius, S., Madueno, L., Vallar, E., Alas, H., Betito, G., Birmili, W.,
Cambaliza, M. O., Catipay, G., Gonzaga-Cayetano, M., Galvez, M. C., Lorenzo,
G., Muller, T., Simpas, J. B., Tamayo, E. G., and Wiedensohler, A.: Aerosol
particle mixing state, refractory particle number size distributions and
emission factors in a polluted urban environment: Case study of Metro
Manila, Philippines, Atmos. Environ., 170, 169–183,
https://doi.org/10.1016/j.atmosenv.2017.09.037, 2017.
Keshtkar, H. and Ashbaugh, L. L.: Size distribution of polycyclic aromatic
hydrocarbon particulate emission factors from agricultural burning, Atmos.
Environ., 41, 2729–2739, https://doi.org/10.1016/j.atmosenv.2006.11.043, 2007.
Kim Oanh, N. T., Upadhyay, N., Zhuang, Y. H., Hao, Z. P., Murthy, D. V. S.,
Lestari, P., Villarin, J. T., Chengchua, K., Co, H. X., Dung, N. T., and
Lindgren, E. S.: Particulate air pollution in six Asian cities: Spatial and
temporal distributions, and associated sources, Atmos. Environ., 40,
3367–3380, https://doi.org/10.1016/j.atmosenv.2006.01.050, 2006.
Kim Oanh, N. T., Pongkiatkul, P., Cruz, M. T., Trung Dung, N., Phillip, L.,
Zhang, G., and Lestari, P.: Monitoring and Source Apportionment for
Particulate Matter Pollution in Six Asian Cities, in: Integrated Air Quality
Management: Asian Case Studies, edited by: Kim Oanh, N. T., CRC Press, Taylor
& Francis Group, USA, 97–124, 2013.
Kleindienst, T. E., Jaoui, M., Lewandowski, M., Offenberg, J. H., and
Docherty, K. S.: The formation of SOA and chemical tracer compounds from the
photooxidation of naphthalene and its methyl analogs in the presence and
absence of nitrogen oxides, Atmos. Chem. Phys., 12, 8711–8726,
https://doi.org/10.5194/acp-12-8711-2012, 2012.
Liao, H., Chen, W. T., and Seinfeld, J. H.: Role of climate change in global
predictions of future tropospheric ozone and aerosols, J. Geophys. Res.-Atmos.,
111, D12304, https://doi.org/10.1029/2005jd006852, 2006.
Lin, C. C., Chen, S. J., Huang, K. L., Hwang, W. I., Chang-Chien, G. P., and
Lin, W. Y.: Characteristics of metals in nano/ultrafine/fine/coarse
particles collected beside a heavily trafficked road, Environ. Sci. Technol.,
39, 8113–8122, https://doi.org/10.1021/es048182a, 2005.
Linak, W. P. and Miller, C. A.: Comparison of particle size distributions
and elemental partitioning from the combustion of pulverized coal and
residual fuel oil, J. Air Waste Manage., 50, 1532–1544, https://doi.org/10.1080/10473289.2000.10464171, 2000.
Ma, Y., Li, S., Zheng, J., Khalizov, A., Wang, X., Wang, Z., and Zhou, Y.:
Size-resolved measurements of mixing state and cloud-nucleating ability of
aerosols in Nanjing, China, J. Geophys. Res.-Atmos.,
122, 9430–9450, https://doi.org/10.1002/2017jd026583, 2017.
Ma, L., Dadashazar, D., Braun, R. A., MacDonald, A. B., Aghdam, M. A.,
Maudlin, L. C., and Sorooshian, A.: Size-resolved characteristics of
water-soluble particulate elements in a coastal area: Source identification,
influence of wildfires, and diurnal variability, Atmos. Environ., 206,
72–84, https://doi.org/10.1016/j.atmosenv.2019.02.045, 2019.
Mahowald, N., Jickells, T. D., Baker, A. R., Artaxo, P., Benitez-Nelson, C.
R., Bergametti, G., Bond, T. C., Chen, Y., Cohen, D. D., Herut, B., Kubilay,
N., Losno, R., Luo, C., Maenhaut, W., McGee, K. A., Okin, G. S., Siefert, R.
L., and Tsukuda, S.: Global distribution of atmospheric phosphorus sources,
concentrations and deposition rates, and anthropogenic impacts, Global
Biogeochem. Cy., 22, GB4026, https://doi.org/10.1029/2008gb003240, 2008.
Marple, V., Olson, B., Romay, F., Hudak, G., Geerts, S. M., and Lundgren, D.:
Second generation micro-orifice uniform deposit impactor, 120 MOUDI-II:
Design, Evaluation, and application to long-term ambient sampling, Aerosol
Sci. Technol., 48, 427–433, https://doi.org/10.1080/02786826.2014.884274, 2014.
Martens, C. S., Wesolowski, J. J., Harriss, R. C., and Kaifer, R.: Chlorine
Loss from Puerto-Rican and San-Francisco-Bay Area Marine Aerosols, J. Geophys.
Res., 78, 8778–8792, https://doi.org/10.1029/JC078i036p08778, 1973.
Maudlin, L. C., Wang, Z., Jonsson, H. H., and Sorooshian, A.: Impact of
wildfires on size-resolved aerosol composition at a coastal California site,
Atmos. Environ., 119, 59–68, https://doi.org/10.1016/j.atmosenv.2015.08.039, 2015.
Metcalf, A. R., Craven, J. S., Ensberg, J. J., Brioude, J., Angevine, W.,
Sorooshian, A., Duong, H. T., Jonsson, H. H., Flagan, R. C., and Seinfeld,
J. H.: Black carbon aerosol over the Los Angeles Basin during CalNex, J.
Geophys. Res.-Atmos., 117, D00V13, https://doi.org/10.1029/2011jd017255, 2012.
Mielonen, T., Levy, R. C., Aaltonen, V., Komppula, M., de Leeuw, G., Huttunen, J., Lihavainen, H., Kolmonen, P., Lehtinen, K. E. J., and Arola, A.: Evaluating the assumptions of surface reflectance and aerosol type selection within the MODIS aerosol retrieval over land: the problem of dust type selection, Atmos. Meas. Tech., 4, 201–214, https://doi.org/10.5194/amt-4-201-2011, 2011.
Miller, J. and Miller, J. C.: Statistics and chemometrics for analytical
chemistry, Pearson Education, 312 pp., 2018.
Mishra, S. K., Agnihotri, R., Yadav, P. K., Singh, S., Prasad, M. V. S. N.,
Praveen, P. S., Tawale, J. S., Rashmi, Mishra, N. D., Arya, B. C., and
Sharma, C.: Morphology of Atmospheric Particles over Semi-Arid Region
(Jaipur, Rajasthan) of India: Implications for Optical Properties, Aerosol
Air Qual. Res., 15, 974–984, https://doi.org/10.4209/aaqr.2014.10.0244, 2015.
Mooibroek, D., Schaap, M., Weijers, E. P., and Hoogerbrugge, R.: Source
apportionment and spatial variability of PM2.5 using measurements at
five sites in the Netherlands, Atmos. Environ., 45, 4180–4191,
https://doi.org/10.1016/j.atmosenv.2011.05.017, 2011.
Mosier, A. R., Andre, C. E., and Viets, F. G.: Identification of
Aliphatic-Amines Volatilized from Cattle Feedyard, Environ. Sci. Technol., 7,
642–644, https://doi.org/10.1021/es60079a009, 1973.
Müller, C., Iinuma, Y., Karstensen, J., van Pinxteren, D., Lehmann, S., Gnauk, T., and Herrmann, H.: Seasonal variation of aliphatic amines in marine sub-micrometer particles at the Cape Verde islands, Atmos. Chem. Phys., 9, 9587–9597, https://doi.org/10.5194/acp-9-9587-2009, 2009.
Murphy, S. M., Agrawal, H., Sorooshian, A., Padro, L. T., Gates, H., Hersey,
S., Welch, W. A., Jung, H., Miller, J. W., Cocker, D. R., Nenes, A.,
Jonsson, H. H., Flagan, R. C., and Seinfeld, J. H.: Comprehensive
Simultaneous Shipboard and Airborne Characterization of Exhaust from a
Modern Container Ship at Sea, Environ. Sci. Technol., 43, 4626–4640,
https://doi.org/10.1021/es802413j, 2009.
Norris, G., Duvall, R., Brown, S., and Bai, S.: EPA Positive Matrix
Factorization (PMF) 5.0 fundamentals and User Guide Prepared for the US
Environmental Protection Agency Office of Research and Development,
Washington, DC. Inc., Petaluma, 124 pp., 2014.
Nriagu, J. O.: A Global Assessment of Natural Sources of Atmospheric
Trace-Metals, Nature, 338, 47–49, https://doi.org/10.1038/338047a0, 1989.
Pabroa, P. C. B., Santos, F. L., Morco, R. P., Racho, J. M. D., Bautista, A.
T., and Bucal, C. G. D.: Receptor modeling studies for the characterization
of air particulate lead pollution sources in Valenzuela sampling site
(Philippines), Atmos. Pollut. Res., 2, 213–218, https://doi.org/10.5094/Apr.2011.027, 2011.
Philippine Statistics Authority: available at: https://psa.gov.ph/, last access: 28 August 2018.
Polissar, A., Hopke, P., Paatero, P., Malm, W., and Sisler, J.: Atmospheric
aerosol over Alaska 2, Elemental composition and sources, J.
Geophys. Res., 103, 19045–19057, 1998.
Prabhakar, G., Ervens, B., Wang, Z., Maudlin, L. C., Coggon, M. M., Jonsson,
H. H., Seinfeld, J. H., and Sorooshian, A.: Sources of nitrate in
stratocumulus cloud water: Airborne measurements during the 2011 E-PEACE and
2013 NiCE studies, Atmos. Environ., 97, 166–173,
https://doi.org/10.1016/j.atmosenv.2014.08.019, 2014a.
Prabhakar, G., Sorooshian, A., Toffol, E., Arellano, A. F., and Betterton,
E. A.: Spatiotemporal distribution of airborne particulate metals and
metalloids in a populated arid region, Atmos. Environ., 92, 339–347,
https://doi.org/10.1016/j.atmosenv.2014.04.044, 2014b.
Qu, W. J., Wang, J., Zhang, X. Y., Wang, D., and Sheng, L. F.: Influence of
relative humidity on aerosol composition: Impacts on light extinction and
visibility impairment at two sites in coastal area of China, Atmos. Res., 153,
500–511, https://doi.org/10.1016/j.atmosres.2014.10.009, 2015.
Raatikainen, T., Brus, D., Hyvärinen, A. P., Svensson, J., Asmi, E., and
Lihavainen, H.: Black carbon concentrations and mixing state in the Finnish
Arctic, Atmos. Chem. Phys., 15, 10057–10070, https://doi.org/10.5194/acp-15-10057-2015,
2015.
Ramachandran, S. and Rajesh, T. A.: Black carbon aerosol mass
concentrations over Ahmedabad, an urban location in western India:
Comparison with urban sites in Asia, Europe, Canada, and the United States,
J. Geophys. Res.-Atmos., 112, D06211, https://doi.org/10.1029/2006jd007488, 2007.
Ran, L., Deng, Z. Z., Wang, P. C., and Xia, X. A.: Black carbon and
wavelength-dependent aerosol absorption in the North China Plain based on
two-year aethalometer measurements, Atmos. Environ., 142, 132–144,
https://doi.org/10.1016/j.atmosenv.2016.07.014, 2016.
Reddington, C. L., McMeeking, G., Mann, G. W., Coe, H., Frontoso, M. G.,
Liu, D., Flynn, M., Spracklen, D. V., and Carslaw, K. S.: The mass and
number size distributions of black carbon aerosol over Europe, Atmos. Chem.
Phys., 13, 4917–4939, https://doi.org/10.5194/acp-13-4917-2013, 2013.
Reff, A., Eberly, S. I., and Bhave, P. V.: Receptor modeling of ambient
particulate matter data using positive matrix factorization: Review of
existing methods, J. Air Waste Manage., 57, 146–154, 2007.
Reid, J. S., Xian, P., Hyer, E. J., Flatau, M. K., Ramirez, E. M., Turk, F.
J., Sampson, C. R., Zhang, C., Fukada, E. M., and Maloney, E. D.:
Multi-scale meteorological conceptual analysis of observed active fire
hotspot activity and smoke optical depth in the Maritime Continent, Atmos.
Chem. Phys., 12, 2117–2147, https://doi.org/10.5194/acp-12-2117-2012, 2012.
Reid, J. S., Hyer, E. J., Johnson, R. S., Holben, B. N., Yokelson, R. J.,
Zhang, J. L., Campbell, J. R., Christopher, S. A., Di Girolamo, L., Giglio,
L., Holz, R. E., Kearney, C., Miettinen, J., Reid, E. A., Turk, F. J., Wang,
J., Xian, P., Zhao, G. Y., Balasubramanian, R., Chew, B. N., Janjai, S.,
Lagrosas, N., Lestari, P., Lin, N. H., Mahmud, M., Nguyen, A. X., Norris,
B., Oanh, N. T. K., Oo, M., Salinas, S. V., Welton, E. J., and Liew, S. C.:
Observing and understanding the Southeast Asian aerosol system by remote
sensing: An initial review and analysis for the Seven Southeast Asian
Studies (7SEAS) program, Atmos. Res., 122, 403–468,
https://doi.org/10.1016/j.atmosres.2012.06.005, 2013.
Reid, J. S., Xian, P., Holben, B. N., Hyer, E. J., Reid, E. A., Salinas, S.
V., Zhang, J. L., Campbell, J. R., Chew, B. N., Holz, R. E., Kuciauskas, A.
P., Lagrosas, N., Posselt, D. J., Sampson, C. R., Walker, A. L., Welton, E.
J., and Zhang, C. D.: Aerosol meteorology of the Maritime Continent for the
2012 7SEAS southwest monsoon intensive study – Part 1: regional-scale
phenomena, Atmos. Chem. Phys., 16, 14041–14056, https://doi.org/10.5194/acp-16-14041-2016,
2016a.
Reid, J. S., Lagrosas, N. D., Jonsson, H. H., Reid, E. A., Atwood, S. A.,
Boyd, T. J., Ghate, V. P., Xian, P., Posselt, D. J., Simpas, J. B., Uy, S.
N., Zaiger, K., Blake, D. R., Bucholtz, A., Campbell, J. R., Chew, B. N.,
Cliff, S. S., Holben, B. N., Holz, R. E., Hyer, E. J., Kreidenweis, S. M.,
Kuciauskas, A. P., Lolli, S., Oo, M., Perry, K. D., Salinas, S. V.,
Sessions, W. R., Smirnov, A., Walker, A. L., Wang, Q., Yu, L. Y., Zhang, J.
L., and Zhao, Y. J.: Aerosol meteorology of Maritime Continent for the 2012
7SEAS southwest monsoon intensive study – Part 2: Philippine receptor
observations of fine-scale aerosol behavior, Atmos. Chem. Phys., 16,
14057–14078, https://doi.org/10.5194/acp-16-14057-2016, 2016b.
Rocha, L. D. S. and Correa, S. M.: Determination of size-segregated
elements in diesel-biodiesel blend exhaust emissions, Environ. Sci. Pollut. Res.,
25, 18121–18129, https://doi.org/10.1007/s11356-018-1980-8, 2018.
Rogge, W. F., Mazurek, M. A., Hildemann, L. M., Cass, G. R., and Simoneit,
B. R. T.: Quantification of Urban Organic Aerosols at a Molecular-Level –
Identification, Abundance and Seasonal-Variation, Atmos. Environ. A-Gen., 27,
1309–1330, https://doi.org/10.1016/0960-1686(93)90257-Y, 1993.
Ro, C. U., Oh, K. Y., Kim, H., Kim, Y. P., Lee, C. B., Kim, K. H., Kang, C.
H., Osan, J., De Hoog, J., Worobiec, A., and Van Grieken, R.:
Single-particle analysis of aerosols at Cheju Island, Korea, using low-Z
electron probe X-ray microanalysis: A direct proof of nitrate formation from
sea salts, Environ. Sci. Technol., 35, 4487–4494, https://doi.org/10.1021/es0155231, 2001.
Rolph, G. D.: Real-time Environmental Applications and Display sYstem (READY)
website (http://ready.Arl.NOAA.Gov, last access: 5 February 2019), NOAA Air Resour. Lab., Silver Spring,
Md., 2016.
Roth, B. and Okada, K.: On the modification of sea-salt particles in the
coastal atmosphere, Atmos. Environ., 32, 1555–1569, https://doi.org/10.1016/S1352-2310(97)00378-6, 1998.
Saltzman, E. S., Savoie, D. L., Zika, R. G., and Prospero, J. M.: Methane
Sulfonic-Acid in the Marine Atmosphere, J. Geophys. Res.-Ocean., 88, 897–902,
https://doi.org/10.1029/JC088iC15p10897, 1983.
Saltzman, E. S., Savoie, D. L., Prospero, J. M., and Zika, R. G.:
Methanesulfonic-Acid and Non-Sea-Salt Sulfate in Pacific Air – Regional and
Seasonal-Variations, J. Atmos. Chem., 4, 227–240, https://doi.org/10.1007/Bf00052002, 1986.
Schade, G. W. and Crutzen, P. J.: Emission of Aliphatic-Amines from Animal
Husbandry and Their Reactions – Potential Source of N2O and HCN, J.
Atmos. Chem., 22, 319–346, https://doi.org/10.1007/Bf00696641, 1995.
Schlosser, J. S., Braun, R. A., Bradley, T., Dadashazar, H., MacDonald, A.
B., Aldhaif, A. M., Aghdam, M. A., Mardi, A. H.., Xian, P., and Sorooshian,
A.: Analysis of Aerosol Composition Data for Western United States Wildfires
Between 2005–2015: Dust Emissions, Chloride Depletion, and Most Enhanced
Aerosol Constituents, J. Geophys. Res., 122, 8951–8966, https://doi.org/10.1002/2017JD026547, 2017.
Schwarz, J. P., Gao, R. S., Spackman, J. R., Watts, L. A., Thomson, D. S.,
Fahey, D. W., Ryerson, T. B., Peischl, J., Holloway, J. S., Trainer, M.,
Frost, G. J., Baynard, T., Lack, D. A., de Gouw, J. A., Warneke, C., and Del
Negro, L. A.: Measurement of the mixing state, mass, and optical size of
individual black carbon particles in urban and biomass burning emissions,
Geophys. Res. Lett., 35, L13810, https://doi.org/10.1029/2008gl033968, 2008.
Seinfeld, J. H. and Pandis, S. N.: Atmospheric chemistry and physics, 3rd
Edn., New York, Wiley-Interscience, 1152 pp., 2016.
Shafer, M. M., Toner, B. M., Oyerdier, J. T., Schauer, J. J., Fakra, S. C.,
Hu, S. H., Herner, J. D., and Ayala, A.: Chemical Speciation of Vanadium in
Particulate Matter Emitted from Diesel Vehicles and Urban Atmospheric
Aerosols, Environ. Sci. Technol., 46, 189–195, https://doi.org/10.1021/es200463c, 2012.
Shingler, T., Sorooshian, A., Ortega, A., Crosbie, E., Wonaschutz, A.,
Perring, A. E., Beyersdorf, A., Ziemba, L., Jimenez, J. L., Campuzano-Jost,
P., Mikoviny, T., Wisthaler, A., and Russell, L. M.: Ambient observations of
hygroscopic growth factor and f(RH) below 1: Case studies from surface and
airborne measurements, J. Geophys. Res.-Atmos., 121, 13661–13677,
https://doi.org/10.1002/2016jd025471, 2016.
Shiraiwa, M., Kondo, Y., Moteki, N., Takegawa, N., Sahu, L. K., Takami, A.,
Hatakeyama, S., Yonemura, S., and Blake, D. R.: Radiative impact of mixing
state of black carbon aerosol in Asian outflow, J. Geophys.
Res.-Atmos., 113, D24210, https://doi.org/10.1029/2008jd010546, 2008.
Simpas, J., Lorenzo, G., and Cruz, M. T.: Monitoring Particulate Matter
Levels and Composition for Source Apportionment Study in Metro Manila,
Philippines, in: Improving Air Quality in Asian Developing Countries:
Compilation of Research Findings, edited by: Kim Oanh, N. T., NARENCA, Vietnam
Publishing House of Natural Resources, Environment and Cartography, Vietnam,
239–261, 2014.
Singh, M., Jaques, P. A., and Sioutas, C.: Size distribution and diurnal
characteristics of particle-bound metals in source and receptor sites of the
Los Angeles Basin, Atmos. Environ., 36, 1675–1689,
https://doi.org/10.1016/S1352-2310(02)00166-8, 2002.
Song, F. and Gao, Y.: Size distributions of trace elements associated with
ambient particular matter in the affinity of a major highway in the New
Jersey-New York metropolitan area, Atmos. Environ., 45, 6714–6723,
https://doi.org/10.1016/j.atmosenv.2011.08.031, 2011.
Sorooshian, A., Ng, N. L., Chan, A. W. H., Feingold, G., Flagan, R. C., and
Seinfeld, J. H.: Particulate organic acids and overall water-soluble aerosol
composition measurements from the 2006 Gulf of Mexico Atmospheric
Composition and Climate Study (GoMACCS), J. Geophys. Res.-Atmos., 112, D13201,
https://doi.org/10.1029/2007jd008537, 2007.
Sorooshian, A., Murphy, S. N., Hersey, S., Gates, H., Padro, L. T., Nenes,
A., Brechtel, F. J., Jonsson, H., Flagan, R. C., and Seinfeld, J. H.:
Comprehensive airborne characterization of aerosol from a major bovine
source, Atmos. Chem. Phys., 8, 5489–5520, https://doi.org/10.5194/acp-8-5489-2008, 2008.
Sorooshian, A., Padro, L. T., Nenes, A., Feingold, G., McComiskey, A.,
Hersey, S. P., Gates, H., Jonsson, H. H., Miller, S. D., Stephens, G. L.,
Flagan, R. C., and Seinfeld, J. H.: On the link between ocean biota
emissions, aerosol, and maritime clouds: Airborne, ground, and satellite
measurements off the coast of California, Global Biogeochem. Cy., 23, GB4007,
https://doi.org/10.1029/2009gb003464, 2009.
Sorooshian, A., Crosbie, E., Maudlin, L. C., Youn, J. S., Wang, Z.,
Shingler, T., Ortega, A. M., Hersey, S., and Woods, R. K.: Surface and
airborne measurements of organosulfur and methanesulfonate over the western
United States and coastal areas, J. Geophys. Res.-Atmos., 120, 8535–8548,
https://doi.org/10.1002/2015jd023822, 2015.
Stein, A. F., Draxler, R. R., Rolph, G. D., Stunder, B. J. B., Cohen, M. D.,
and Ngan, F.: NOAA's Hysplit Atmospheric Transport and Dispersion Modeling
System, B. Am. Meteorol. Soc., 96, 2059–2077, https://doi.org/10.1175/Bams-D-14-00110.1, 2015.
Tai, A. P. K., Mickley, L. J., and Jacob, D. J.: Correlations between fine
particulate matter (PM2.5) and meteorological variables in the United
States: Implications for the sensitivity of PM2.5 to climate change, Atmos.
Environ., 44, 3976–3984, https://doi.org/10.1016/j.atmosenv.2010.06.060, 2010.
Tsakalou, C., Papamarkou, S., Tsakiridis, P. E., Bartzas, G., and
Tsakalakis, K.: Characterization and leachability evaluation of medical
wastes incineration fly and bottom ashes and their vitrification outgrowths,
J. Environ. Chem. Eng., 6, 367–376, https://doi.org/10.1016/j.jece.2017.12.012, 2018.
US Environmental Protection Agency: Monitoring PM2.5 in Ambient Air
Using Designated Reference or Class I Equivalent Methods, Report No.
EPA-454/B-16-001, US Environmental Protection Agency, Research Triangle
Park, NC, 174 pp., 2016.
VandenBoer, T. C., Petroff, A., Markovic, M. Z., and Murphy, J. G.: Size
distribution of alkyl amines in continental particulate matter and their
online detection in the gas and particle phase, Atmos. Chem. Phys., 11,
4319–4332, https://doi.org/10.5194/acp-11-4319-2011, 2011.
Villafuerte, M. Q., Matsumoto, J., Akasaka, I., Takahashi, H. G., Kubota,
H., and Cinco, T. A.: Long-term trends and variability of rainfall extremes
in the Philippines, Atmos. Res., 137, 1–13, https://doi.org/10.1016/j.atmosres.2013.09.021,
2014.
Vossler, T., Cernikovsky, L., Novak, J., and Williams, R.: Source
apportionment with uncertainty estimates of fine particulate matter in
Ostrava, Czech Republic using Positive Matrix Factorization, Atmos. Pollut.
Res., 7, 503–512, https://doi.org/10.1016/j.apr.2015.12.004, 2016.
Wang, J., Ge, C., Yang, Z. F., Hyer, E. J., Reid, J. S., Chew, B. N.,
Mahmud, M., Zhang, Y. X., and Zhang, M. G.: Mesoscale modeling of smoke
transport over the Southeast Asian Maritime Continent: Interplay of sea
breeze, trade wind, typhoon, and topography, Atmos. Res., 122, 486–503,
https://doi.org/10.1016/j.atmosres.2012.05.009, 2013.
Wang, Y. Q., Zhang, X. Y., and Draxler, R. R.: TrajStat: GIS-based software
that uses various trajectory statistical analysis methods to identify
potential sources from long-term air pollution measurement data, Environ.
Modell. Softw., 24, 938–939, https://doi.org/10.1016/j.envsoft.2009.01.004, 2009.
Wasson, S. J., Linak, W. P., Gullett, B. K., King, C. J., Touati, A.,
Huggins, F. E., Chen, Y. Z., Shah, N., and Huffman, G. P.: Emissions of
chromium, copper, arsenic, and PCDDs/Fs from open burning of CCA-treated
wood, Environ. Sci. Technol., 39, 8865–8876, https://doi.org/10.1021/es050891g, 2005.
Watson, J. G.: Protocol for Applying and Validating the CMB Model for
PM2.5 and VOC, Report No. EPA-451/R-04-001, US Environmental Protection
Agency, Research Triangle Park, NC, 173 pp., 2004.
Watts, S. F., Watson, A., and Brimblecombe, P.: Measurements of the Aerosol
Concentrations of Methanesulfonic Acid, Dimethyl-Sulfoxide and Dimethyl
Sulfone in the Marine Atmosphere of the British-Isles, Atmos. Environ., 21,
2667–2672, https://doi.org/10.1016/0004-6981(87)90198-3, 1987.
Wonaschuetz, A., Sorooshian, A., Ervens, B., Chuang, P. Y., Feingold, G.,
Murphy, S. M., de Gouw, J., Warneke, C., and Jonsson, H. H.: Aerosol and gas
re-distribution by shallow cumulus clouds: An investigation using airborne
measurements, J. Geophys. Res.-Atmos., 117, D17202, https://doi.org/10.1029/2012jd018089, 2012.
Wu, D., Zhang, F., Lou, W. H., Li, D., and Chen, J. M.: Chemical
characterization and toxicity assessment of fine particulate matters emitted
from the combustion of petrol and diesel fuels, Sci. Total Environ., 605,
172–179, https://doi.org/10.1016/j.scitotenv.2017.06.058, 2017.
Xian, P., Reid, J. S., Atwood, S. A., Johnson, R. S., Hyer, E. J., Westphal,
D. L., and Sessions, W.: Smoke aerosol transport patterns over the Maritime
Continent, Atmos. Res., 122, 469–485, https://doi.org/10.1016/j.atmosres.2012.05.006, 2013.
Xu, G. J. and Gao, Y.: Characterization of marine aerosols and
precipitation through shipboard observations on the transect between 31∘ N–32∘ S in the West Pacific, Atmos. Pollut. Res., 6, 154–161,
https://doi.org/10.5094/Apr.2015.018, 2015.
Yao, X. H., Fang, M., and Chan, C. K.: The size dependence of chloride
depletion in fine and coarse sea-salt particles, Atmos. Environ., 37, 743–751,
https://doi.org/10.1016/S1352-2310(02)00955-X, 2003.
Youn, J. S., Wang, Z., Wonaschutz, A., Arellano, A., Betterton, E. A., and
Sorooshian, A.: Evidence of aqueous secondary organic aerosol formation from
biogenic emissions in the North American Sonoran Desert, Geophys. Res. Lett.,
40, 3468–3472, https://doi.org/10.1002/grl.50644, 2013.
Youn, J. S., Crosbie, E., Maudlin, L. C., Wang, Z., and Sorooshian, A.:
Dimethylamine as a major alkyl amine species in particles and cloud water:
Observations in semi-arid and coastal regions, Atmos. Environ., 122, 250–258,
https://doi.org/10.1016/j.atmosenv.2015.09.061, 2015.
Youn, J. S., Csavina, J., Rine, K. P., Shingler, T., Taylor, M. P., Saez, A.
E., Betterton, E. A., and Sorooshian, A.: Hygroscopic Properties and
Respiratory System Deposition Behavior of Particulate Matter Emitted By
Mining and Smelting Operations, Environ. Sci. Technol., 50, 11706–11713,
https://doi.org/10.1021/acs.est.6b03621, 2016.
Short summary
This study is the first to report size-resolved PM mass and composition in metro Manila, Philippines. The results, which focus on the southwest monsoon season (SWM), are important with regard to understanding the competition between local sources and long-range transport, characterizing the properties of aerosol impacted by both aqueous processing and wet scavenging, and providing contextual data for comparison with other monsoonal regions and coastal megacities.
This study is the first to report size-resolved PM mass and composition in metro Manila,...
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