气候变化领域集成服务门户(CCPortal): North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperatures

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DOI	10.5194/acp-22-4705-2022
	North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperatures
	Wang, Pinya; Yang, Yang; Li, Huimin; Chen, Lei; Dang, Ruijun; Xue, Daokai; Li, Baojie; Tang, Jianping; Leung, L. Ruby; Liao, Hong
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	4705
结束页码	4719
卷号	22 期号:7 页码:15
英文摘要	A large population in China has been exposed to both severe ozone (O-3) pollution and extreme heat under global warming. Here, the spatiotemporal characteristics of coupled extremes in surface O-3 and heat (OPCs) over China are investigated using surface observations, a process-based chemical transport model (GEOS-Chem), and multi-model simulations from Phase 6 of the Coupled Model Intercomparison Project (CMIP6). North China Plain (NCP; 37-41 degrees N; 114-120 degrees E) is identified as a hot spot of OPCs, where more than half of the O-3 pollution days are accompanied by high temperature extremes. OPCs over NCP exceeded 40 d during 2014-2019, exhibiting an increasing trend. Both O-3 concentrations and temperatures are elevated during OPCs compared with O-3 pollution days occurring individually (OPIs). Therefore, OPCs impose more severe health impacts to humans than OPIs, but the stronger health effects are mainly driven by the higher temperatures. GEOS-Chem simulations further reveal that enhanced chemical production resulting from hot and stable atmospheric conditions under anomalous weather patterns primarily contributes to the exacerbated O-3 levels during OPCs. In the future, CMIP6 projections suggest increased occurrences of OPCs over NCP in the middle of this century, but by the end of this century, OPCs may decrease or increase depending on the pollutant emission scenarios. However, for all future scenarios, extreme high temperatures will play an increasingly important role in modulating O-3 pollution in a warming climate.
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:000780088900001
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/273157
作者单位	Nanjing University of Information Science & Technology; Harvard University; Nanjing University; United States Department of Energy (DOE); Pacific Northwest National Laboratory
推荐引用方式 GB/T 7714	Wang, Pinya,Yang, Yang,Li, Huimin,et al. North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperatures[J],2022,22(7):15.
APA	Wang, Pinya.,Yang, Yang.,Li, Huimin.,Chen, Lei.,Dang, Ruijun.,...&Liao, Hong.(2022).North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperatures.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(7),15.
MLA	Wang, Pinya,et al."North China Plain as a hot spot of ozone pollution exacerbated by extreme high temperatures".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.7(2022):15.