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ACP | Articles | Volume 20, issue 10
Atmos. Chem. Phys., 20, 5911–5922, 2020
https://doi.org/10.5194/acp-20-5911-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 20, 5911–5922, 2020
https://doi.org/10.5194/acp-20-5911-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 19 May 2020

Research article | 19 May 2020

Hygroscopic properties and cloud condensation nuclei activity of atmospheric aerosols under the influences of Asian continental outflow and new particle formation at a coastal site in eastern Asia

Hing Cho Cheung et al.

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Cited articles

Chang, S.-C., Chou, C. C.-K., Chen, W.-N., and Lee, C.-T.: Asian dust and pollution transport – A comprehensive observation in the downwind Taiwan in 2006, Atmos. Res., 95, 19–31, https://doi.org/10.1016/j.atmosres.2009.07.012, 2010. 
Cheung, H. C., Morawska, L., and Ristovski, Z. D.: Observation of new particle formation in subtropical urban environment, Atmos. Chem. Phys., 11, 3823–3833, https://doi.org/10.5194/acp-11-3823-2011, 2011. 
Cheung, H. C., Chou, C. C.-K., Huang, W.-R., and Tsai, C.-Y.: Characterization of ultrafine particle number concentration and new particle formation in an urban environment of Taipei, Taiwan, Atmos. Chem. Phys., 13, 8935–8946, https://doi.org/10.5194/acp-13-8935-2013, 2013. 
Cheung, H. C., Chou, C. C.-K., Chen, M.-J., Huang, W.-R., Huang, S.-H., Tsai, C.-Y., and Lee, C. S. L.: Seasonal variations of ultra-fine and submicron aerosols in Taipei, Taiwan: implications for particle formation processes in a subtropical urban area, Atmos. Chem. Phys., 16, 1317–1330, https://doi.org/10.5194/acp-16-1317-2016, 2016. 
Chou, C. C.-K., Huang, S.-H., Chen, T.-K., Lin, C.-Y., and Wang, L.-C.: Size-segregated characterization of atmospheric aerosols in Taipei during Asian outflow episodes, Atmos, Res., 75, 89–109, https://doi.org/10.1016/j.atmosres.2004.12.002, 2005. 
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Air pollution can result in changes to the amount and properties of aerosols, which in turn could influence climate by acting as cloud condensation nuclei (CCN). This study investigated the composition and hygroscopicity of aerosols (PM2.5) at a station under influences of eastern Asian (EA) outflows and local air mass during respective seasons. The results show that the EA aerosols were more hygroscopic, whereas new particle formation and coagulation could also influence local CCN activity.
Air pollution can result in changes to the amount and properties of aerosols, which in turn...
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