气候变化领域集成服务门户(CCPortal): Long-term trend of ozone pollution in China during 2014-2020: distinct seasonal and spatial characteristics and ozone sensitivity

CCPortal

DOI	10.5194/acp-22-8935-2022
	Long-term trend of ozone pollution in China during 2014-2020: distinct seasonal and spatial characteristics and ozone sensitivity
	Wang, Wenjie; Parrish, David D.; Wang, Siwen; Bao, Fengxia; Ni, Ruijing; Li, Xin; Yang, Suding; Wang, Hongli; Cheng, Yafang; Su, Hang
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	8935
结束页码	8949
卷号	22 期号:13 页码:15
英文摘要	In the past decade, ozone (O-3) pollution has become a severe environmental problem in China's major cities. Here, based on available observational records, we investigated the long-term trend of O-3 pollution in China during 2014-2020. The O-3 concentrations were slightly higher in urban areas than in non-urban areas. During these 7 years, the highest O-3 concentrations primarily occurred during summer in northern China, and during autumn or spring in southern China. Although O-3 precursors, including nitrogen oxides (NOx) and carbon monoxide (CO), continuously decreased, O-3 concentrations generally increased throughout the 7 years with a slower increasing rate after 2017. The long-term trend of O-3 concentrations differed across seasons, especially from 2019 to 2020, when O-3 concentrations decreased in summer and increased in winter. To analyse the causes of this observed trend, a photochemical box model was used to investigate the change in the O-3 sensitivity regime in two representative cities - Beijing and Shanghai. Our model simulations suggest that the summertime O-3 sensitivity regime in urban areas of China has changed from a VOC-limited regime to a transition regime during 2014-2020. By 2020, the urban photochemistry was in a transition regime in summer but in a VOC-limited regime in winter. This study helps to understand the distinct trends of O-3 in China and provides insights into efficient future O-3 control strategies in different regions and seasons.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000823057500001
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/273078
作者单位	Max Planck Society; Max Planck Society; Peking University
推荐引用方式 GB/T 7714	Wang, Wenjie,Parrish, David D.,Wang, Siwen,et al. Long-term trend of ozone pollution in China during 2014-2020: distinct seasonal and spatial characteristics and ozone sensitivity[J],2022,22(13):15.
APA	Wang, Wenjie.,Parrish, David D..,Wang, Siwen.,Bao, Fengxia.,Ni, Ruijing.,...&Su, Hang.(2022).Long-term trend of ozone pollution in China during 2014-2020: distinct seasonal and spatial characteristics and ozone sensitivity.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(13),15.
MLA	Wang, Wenjie,et al."Long-term trend of ozone pollution in China during 2014-2020: distinct seasonal and spatial characteristics and ozone sensitivity".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.13(2022):15.