Tropospheric sources and sinks of gas-phase acids in the Colorado Front Range

Mattila, James M.; Brophy, Patrick; Kirkland, Jeffrey; Hall, Samuel; Ullmann, Kirk; Fischer, Emily V.; Brown, Steve; McDuffie, Erin; Tevlin, Alex; Farmer, Delphine K.

doi:https://doi.org/10.5194/acp-18-12315-2018

Articles | Volume 18, issue 16

https://doi.org/10.5194/acp-18-12315-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-12315-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 16

Research article

|

24 Aug 2018

Research article |

| 24 Aug 2018

Tropospheric sources and sinks of gas-phase acids in the Colorado Front Range

James M. Mattila, Patrick Brophy, Jeffrey Kirkland, Samuel Hall, Kirk Ullmann, Emily V. Fischer, Steve Brown, Erin McDuffie, Alex Tevlin, and Delphine K. Farmer

Supplement

https://doi.org/10.5194/acp-18-12315-2018-supplement

Data sets

Data Browser for BAO Tower Data D. Welsh, B. Bartram, S. Pezoa, D. Hooper, B. D. Luisi, C. Smith, A. Keane, and D. Wolfe https://www.esrl.noaa.gov/psd/technology/bao/browser/

QC-TILDAS NH3 FRAPPÉ data A. Tevlin and J. Murphy https://www-air.larc.nasa.gov/missions/discover-aq/discover-aq.html

O3 and NOx FRAPPÉ data E. McDuffie and S. Brown https://www-air.larc.nasa.gov/missions/discover-aq/discover-aq.html

NO2 photolysis rate FRAPPÉ data K. Ullmann and S. Hall https://www-air.larc.nasa.gov/missions/discover-aq/discover-aq.html

Acetate CIMS FRAPPÉ data J. Mattila, P. Brophy, J. Kirkland, and D. K. Farmer https://www-air.larc.nasa.gov/missions/discover-aq/discover-aq.html

Picarro 6401 cavity ringdown spectrometer FRAPPÉ data E. V. Fischer https://www-air.larc.nasa.gov/missions/discover-aq/discover-aq.html

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Short summary

Molecular acids in the atmosphere have implications for human health and air quality. Measurements of various acidic molecules were performed in the Colorado Front Range. Atmospheric concentrations of many acids increased during the day, indicative of sunlight-related production sources. A surface-level source of many acids persisting throughout day and night was observed. Traffic and agricultural activity were important anthropogenic sources of several acids near the measurement site.