气候变化领域集成服务门户(CCPortal): Enhancement of secondary aerosol formation by reduced anthropogenic emissions during Spring Festival 2019 and enlightenment for regional PM2.5 control in Beijing

CCPortal

DOI	10.5194/acp-21-915-2021
	Enhancement of secondary aerosol formation by reduced anthropogenic emissions during Spring Festival 2019 and enlightenment for regional PM2.5 control in Beijing
	Wang Y.; Li Z.; Wang Q.; Jin X.; Yan P.; Cribb M.; Li Y.; Yuan C.; Wu H.; Wu T.; Ren R.; Cai Z.
发表日期	2021
ISSN	1680-7316
起始页码	915
结束页码	926
卷号	21 期号:2
英文摘要	A comprehensive field experiment measuring aerosol chemical and physical properties at a suburban site in Beijing around the 2019 Spring Festival was carried out to investigate the impact of reduced anthropogenic emissions on aerosol formation. Sharply reduced sulfur dioxide (SO2) and nitrogen dioxide (NO2) concentrations during the festival holiday resulted in an unexpected increase in the surface ozone (O3) concentration caused by the strong O3- titration phenomenon. Simultaneously, the reduced anthropogenic emissions resulted in massive decreases in particle number concentration at all sizes and the mass concentrations of organics and black carbon. However, the mass concentrations of inorganics (especially sulfate) decreased weakly. Detailed analyses of the sulfur oxidation ratio and the nitrogen oxidation ratio suggest that sulfate formation during the holiday could be promoted by enhanced nocturnal aqueousphase chemical reactions between SO2 and O3 under moderate relative humidity (RH) conditions (40%
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168817
作者单位	Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, China; State Key Laboratory of Remote Sensing Science, Beijing Normal University, Beijing, 100875, China; Earth System Science Interdisciplinary Center, Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, United States; CMA Meteorological Observation Center, Centre for Atmosphere Watch and Services, Beijing, 100081, China
推荐引用方式 GB/T 7714	Wang Y.,Li Z.,Wang Q.,et al. Enhancement of secondary aerosol formation by reduced anthropogenic emissions during Spring Festival 2019 and enlightenment for regional PM2.5 control in Beijing[J],2021,21(2).
APA	Wang Y..,Li Z..,Wang Q..,Jin X..,Yan P..,...&Cai Z..(2021).Enhancement of secondary aerosol formation by reduced anthropogenic emissions during Spring Festival 2019 and enlightenment for regional PM2.5 control in Beijing.Atmospheric Chemistry and Physics,21(2).
MLA	Wang Y.,et al."Enhancement of secondary aerosol formation by reduced anthropogenic emissions during Spring Festival 2019 and enlightenment for regional PM2.5 control in Beijing".Atmospheric Chemistry and Physics 21.2(2021).