干旱区生态环境知识资源中心(Arid): Characteristics and Meteorological Factors of Severe Haze Pollution in China

Arid

DOI	10.1155/2021/6680564
	Characteristics and Meteorological Factors of Severe Haze Pollution in China
	He, Chao; Hong, Song; Mu, Hang; Tu, Peiyue; Yang, Lu; Ke, Biqin; Huang, Jiayi
通讯作者	Huang, JY (corresponding author), Univ Toronto, Woodsworth Coll, Toronto, ON M5S 1A9, Canada.
来源期刊	ADVANCES IN METEOROLOGY
ISSN	1687-9309
EISSN	1687-9317
出版年	2021
卷号	2021
英文摘要	A severe haze pollution incident caused by unfavorable weather conditions and a northern air mass occurred in eastern, northern, northwestern, and southwestern China from January 15 to January 22, 2018. To comparatively analyze variations in PM2.5 pollution, hourly monitoring data and 24 h meteorological data were collected. Air quality observations revealed large spatiotemporal variation in PM2.5 concentrations in Handan, Zhengzhou, Xi'an, Yuncheng, Chengdu, Xiangyang, and Jinan. The daily mean PM2.5 concentrations ranged from 111.35 to 227.23 mu g center dot m(-3), with concentration being highest in Zhengzhou. Hourly mean PM2.5 concentration presented multiple U-shaped curves, with higher values at night and lower values during the day. The ratios of PM2.5 to PM10 were large in target cities and the results of multiscale geographic weighted regression model (MGWR) and Pearson correlation coefficients showed that PM2.5 had a significant positive or negative correlation with PM10, CO, NO2, and SO2. The concentration of PM2.5 was closely related to the combustion of fossil fuels and other organic compounds, indicating the large contribution of secondary aerosols to PM2.5 concentrations. The analysis of meteorological conditions showed that low temperature, low wind speed, and high relative humidity could aggravate the accumulation of regional pollutants in winter. Northwestern trajectory clusters were predominant contributions except in Jinan, and the highest PM2.5 concentrations in target cities were associated with short trajectory clusters in winter. The potential sources calculated by Weight Potential Source Contribution Function (WPSCF) and Weight Concentration-Weighted Trajectory (WCWT) models were similar and the highest values of the WPSCF (>0.5) and the WCWT (>100 mu g center dot m(-3)) were mainly distributed in densely populated, industrial, arid, and semiarid regions.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000671838800001
WOS关键词	LONG-RANGE-TRANSPORT ; AIR-POLLUTION ; CHEMICAL CHARACTERISTICS ; SOURCE APPORTIONMENT ; ATMOSPHERIC AEROSOL ; SEASONAL-VARIATIONS ; PARTICULATE MATTER ; OPTICAL-PROPERTIES ; EMISSION FACTORS ; RIVER DELTA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368687
作者单位	[He, Chao; Hong, Song; Mu, Hang; Yang, Lu; Ke, Biqin] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China; [Tu, Peiyue] Hubei Univ, Fac Resources & Environm Sci, Wuhan 430062, Peoples R China; [Huang, Jiayi] Univ Toronto, Woodsworth Coll, Toronto, ON M5S 1A9, Canada
推荐引用方式 GB/T 7714	He, Chao,Hong, Song,Mu, Hang,et al. Characteristics and Meteorological Factors of Severe Haze Pollution in China[J],2021,2021.
APA	He, Chao.,Hong, Song.,Mu, Hang.,Tu, Peiyue.,Yang, Lu.,...&Huang, Jiayi.(2021).Characteristics and Meteorological Factors of Severe Haze Pollution in China.ADVANCES IN METEOROLOGY,2021.
MLA	He, Chao,et al."Characteristics and Meteorological Factors of Severe Haze Pollution in China".ADVANCES IN METEOROLOGY 2021(2021).