Articles | Volume 23, issue 7
https://doi.org/10.5194/acp-23-4271-2023
https://doi.org/10.5194/acp-23-4271-2023
Research article
 | 
12 Apr 2023
Research article |  | 12 Apr 2023

Coarse particulate matter air quality in East Asia: implications for fine particulate nitrate

Shixian Zhai, Daniel J. Jacob, Drew C. Pendergrass, Nadia K. Colombi, Viral Shah, Laura Hyesung Yang, Qiang Zhang, Shuxiao Wang, Hwajin Kim, Yele Sun, Jin-Soo Choi, Jin-Soo Park, Gan Luo, Fangqun Yu, Jung-Hun Woo, Younha Kim, Jack E. Dibb, Taehyoung Lee, Jin-Seok Han, Bruce E. Anderson, Ke Li, and Hong Liao

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Cited articles

Bae, M., Kim, B.-U., Kim, H. C., Kim, J., and Kim, S.: Role of emissions and meteorology in the recent PM2.5 changes in China and South Korea from 2015 to 2018, Environ. Pollut., 270, 116233, https://doi.org/10.1016/j.envpol.2020.116233, 2021. 
Chen, R., Yin, P., Meng, X., Wang, L., Liu, C., Niu, Y., Liu, Y., Liu, J., Qi, J., You, J., Kan, H., and Zhou, M.: Associations between Coarse Particulate Matter Air Pollution and Cause-Specific Mortality: A Nationwide Analysis in 272 Chinese Cities, Environ. Health Perspect., 127, 017008, https://doi.org/10.1289/EHP2711, 2019. 
Chow, J. C., Watson, J. G., Lowenthal, D. H., and Magliano, K. L.: Loss of PM2.5 nitrate from filter samples in central California, J. Air Waste Manage. Assoc., 55, 1158–1168, https://doi.org/10.1080/10473289.2005.10464704, 2005. 
Chinese State Council: Action Plan on Prevention and Control of Air Pollution, http://www.gov.cn/zwgk/2013-09/12/content_2486773.htm (last access: 18 December 2022), 2013. 
Chinese State Council: Three-year Action Plan for Protecting Blue Sky, http://www.gov.cn/zhengce/content/2018-07/03/content_5303158.htm (last access: 18 December 2022), 2018. 
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Short summary
Anthropogenic fugitive dust in East Asia not only causes severe coarse particulate matter air pollution problems, but also affects fine particulate nitrate. Due to emission control efforts, coarse PM decreased steadily. We find that the decrease of coarse PM is a major driver for a lack of decrease of fine particulate nitrate, as it allows more nitric acid to form fine particulate nitrate. The continuing decrease of coarse PM requires more stringent ammonia and nitrogen oxides emission controls.
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