气候变化领域集成服务门户(CCPortal): Surface Ozone in the Yangtze River Delta, China: A Synthesis of Basic Features, Meteorological Driving Factors, and Health Impacts

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DOI	10.1029/2020JD033600
	Surface Ozone in the Yangtze River Delta, China: A Synthesis of Basic Features, Meteorological Driving Factors, and Health Impacts
	Zhan C.; Xie M.; Liu J.; Wang T.; Xu M.; Chen B.; Li S.; Zhuang B.; Li M.
发表日期	2021
ISSN	2169897X
卷号	126 期号:6
英文摘要	Ozone (O3) is of great importance to air quality in the Yangtze River Delta (YRD) region, China. Focusing on surface O3 in the YRD, its spatiotemporal characteristics, meteorological driving factors, and health impacts are investigated based on surface O3 observations in this study. We find that from 2015 to 2019, most cities failed to meet the national standards and O3 pollution mainly occurred in warm seasons (April-September). Surface O3 in the YRD increased in the recent years, so did tropospheric column O3. Spatially, surface shows a significant positive autocorrelation over the YRD except for 2019, and high O3 values mainly gather in the central of the YRD. The first two empirical orthogonal functions (EOFs) of O3 accounted for 37.4% and 20.0% of the total variance in O3, respectively, with their spatial patterns characterized by the same phase and west and east contrast, respectively. The EOF1 is related to the change in radiation and the EOF2 is attributed to regional transport by prevailing westerly wind. Downward UV radiation, temperature and u wind are crucial factors. The premature mortality caused by O3 for respiratory disease in the YRD is estimated to be 5,889 cases per year. Furthermore, we find that premature mortality is more sensitive to O3 concentration than population, suggesting that controlling peak O3 concentration can bring great health benefits. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	health impact; meteorological influence; surface ozone; the Yangtze River Delta
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185402
作者单位	School of Atmospheric Sciences, Jiangsu Collaborative Innovation Center for Climate Change, Joint Center for Atmospheric Radar Research of CMA/NJU, CMA-NJU Joint Laboratory for Climate Prediction Studies, Nanjing University, Nanjing, China; Department of Geography and Planning, University of Toronto, Toronto, ON, Canada; Jiangsu Provincial Climate Center, Nanjing, China
推荐引用方式 GB/T 7714	Zhan C.,Xie M.,Liu J.,et al. Surface Ozone in the Yangtze River Delta, China: A Synthesis of Basic Features, Meteorological Driving Factors, and Health Impacts[J],2021,126(6).
APA	Zhan C..,Xie M..,Liu J..,Wang T..,Xu M..,...&Li M..(2021).Surface Ozone in the Yangtze River Delta, China: A Synthesis of Basic Features, Meteorological Driving Factors, and Health Impacts.Journal of Geophysical Research: Atmospheres,126(6).
MLA	Zhan C.,et al."Surface Ozone in the Yangtze River Delta, China: A Synthesis of Basic Features, Meteorological Driving Factors, and Health Impacts".Journal of Geophysical Research: Atmospheres 126.6(2021).