气候变化领域集成服务门户(CCPortal): Distinction of two kinds of haze

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DOI	10.1016/j.atmosenv.2019.117228
	Distinction of two kinds of haze
	Wei K.; Tang X.; Tang G.; Wang J.; Xu L.; Li J.; Ni C.; Zhou Y.; Ding Y.; Liu W.
发表日期	2020
ISSN	1352-2310
卷号	223
英文摘要	Haze is a phenomenon caused by the suspension of fine particulate matters in the air that leads to impaired visibility. In the meteorological practice, a haze day is determined using the observation of visibility and relative humidity, after screening the special weather days of rain, snow, dust, fog, and others. While in the environmental monitoring practice and relevant studies, the term haze is also commonly used and a haze day is determined using the reading of particulate matters (PM). This has actually caused two different kinds of haze days, i.e., meteorological haze days (MHDs) and environmental haze days (EHDs), each with different definitions and standards. Our analysis shows that although MHDs and EHDs overlap, the proportion of MHDs in EHDS is 43% in Beijing, 44% in Shanghai, and 46% in Guangzhou. Meanwhile, there is large percentage of MHDs that are not EHDs, about 21% in Beijing, 42% in Shanghai and 67% in Guangzhou. Therefore, an explicit distinction of the two haze definitions should be made in the study of PM pollution variation and cause in China, which will have important applications in addressing air pollution, formulating environmental policy, and dealing with the health effect of haze in China. © 2019 Elsevier Ltd
关键词	Haze PM2.5 Relative humidity Visibility
语种	英语
scopus关键词	Atmospheric humidity; Environmental protection; Particles (particulate matter); Visibility; Environmental Monitoring; Environmental policy; Fine particulate matter; Haze; Health effects; Particulate Matter; PM2.5; Special weather; Air quality; aerosol composition; atmospheric pollution; atmospheric transport; environmental monitoring; haze; particulate matter; relative humidity; visibility; air pollution; article; China; environmental policy; haze; humidity; particulate matter; visibility; Beijing [China]; China; Guangdong; Guangzhou; Shanghai
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249392
作者单位	Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100190, China; College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Beijing Meteorological Observatory, Beijing Meteorological Service, Beijing, 100089, China; Shanghai Fengxian Meteorological Service, Shanghai, 201416, China; Meteorological Bureau of Funing District, Hebei Province Meteorological Service, Qinhuangdao, Hebei Province 066000, China; Meteorological Bureau of Ningbo, Zhejiang Province Meteorological Service315000, China; Meteorological Bureau of Haidian District, Beijing Meteorological Service, Beijing, 100080, China
推荐引用方式 GB/T 7714	Wei K.,Tang X.,Tang G.,et al. Distinction of two kinds of haze[J],2020,223.
APA	Wei K..,Tang X..,Tang G..,Wang J..,Xu L..,...&Liu W..(2020).Distinction of two kinds of haze.ATMOSPHERIC ENVIRONMENT,223.
MLA	Wei K.,et al."Distinction of two kinds of haze".ATMOSPHERIC ENVIRONMENT 223(2020).