globalchange  > 气候变化与战略
DOI: 10.1038/s41561-021-00726-z
论文题名:
Control of particulate nitrate air pollution in China
作者: Zhai S.; Jacob D.J.; Wang X.; Liu Z.; Wen T.; Shah V.; Li K.; Moch J.M.; Bates K.H.; Song S.; Shen L.; Zhang Y.; Luo G.; Yu F.; Sun Y.; Wang L.; Qi M.; Tao J.; Gui K.; Xu H.; Zhang Q.; Zhao T.; Wang Y.; Lee H.C.; Choi H.; Liao H.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2021
卷: 14, 期:6
起始页码: 389
结束页码: 395
语种: 英语
英文关键词: ammonia ; atmospheric chemistry ; atmospheric pollution ; haze ; nitrate ; nitric acid ; nitrogen ; nitrogen oxides ; particulate matter ; pollution control ; sulfur dioxide ; China ; North China Plain
英文摘要: The concentration of fine particulate matter (PM2.5) across China has decreased by 30–50% over the period 2013–2018 due to stringent emission controls. However, the nitrate component of PM2.5 has not responded effectively to decreasing emissions of nitrogen oxides and has actually increased during winter haze pollution events in the North China Plain. Here, we show that the GEOS-Chem atmospheric chemistry model successfully simulates the nitrate concentrations and trends. We find that winter mean nitrate would have increased over 2013–2018 were it not for favourable meteorology. The principal cause of this nitrate increase is weaker deposition. The fraction of total inorganic nitrate as particulate nitrate instead of gaseous nitric acid over the North China Plain in winter increased from 90% in 2013 to 98% in 2017, as emissions of nitrogen oxides and sulfur dioxide decreased while ammonia emissions remained high. This small increase in the particulate fraction greatly slows down deposition of total inorganic nitrate and hence drives the particulate nitrate increase. Our results suggest that decreasing ammonia emissions would decrease particulate nitrate by driving faster deposition of total inorganic nitrate. Decreasing nitrogen oxide emissions is less effective because it drives faster oxidation of nitrogen oxides and slower deposition of total inorganic nitrate. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169835
Appears in Collections:气候变化与战略

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作者单位: John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States; School of Energy and Environment, City University of Hong Kong, Hong Kong; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Key Laboratory of Coastal Environment and Resources of Zhejiang Province (KLaCER), School of Engineering, Westlake University, Hangzhou, Zhejiang, China; Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China; Atmospheric Sciences Research Center, University at Albany, Albany, NY, United States; College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, China; Institute for Environmental and Climate Research, Jinan University, Guangzhou, China; Key Laboratory for Atmospheric Chemistry, Chinese Academy of Meteorological Sciences, Beijing, China; Zhejiang Institute of Meteorological Sciences, Hangzhou, China; Department of Earth System Science, Tsinghua University, Beijing, China; Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China; Samsung Advanced Institute of Technology, Suwon-si, Gyeonggi-do, South Korea; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, China

Recommended Citation:
Zhai S.,Jacob D.J.,Wang X.,et al. Control of particulate nitrate air pollution in China[J]. Nature Geoscience,2021-01-01,14(6)
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