干旱区生态环境知识资源中心(Arid): The autumn haze-fog episode enhanced by the transport of dust aerosols in the Tianjin area

Arid

DOI	10.1016/j.atmosenv.2020.117669
	The autumn haze-fog episode enhanced by the transport of dust aerosols in the Tianjin area
	Zhao, Liying; Wang, Wencai; Hao, Tianyi; Qu, Wenjun; Sheng, Lifang; Luo, Chenghan; An, Xiadong; Zhou, Yang
通讯作者	Wang, WC
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2020
卷号	237
英文摘要	Dust aerosols from the desert areas of China can be lifted to the upper troposphere and transported eastward by the westerly, affecting regional and local air pollution process. In this paper, we analyzed the long-range transport of dust and its impact on the haze-fog process that occurred in Tianjin from 23 November to 5 December 2018. Satellite and ERA5 reanalysis data revealed that dust from northwestern China was transported to eastern China by the westerly flow behind the troughs, which subsequently enhanced the air pollution in Tianjin area. On 26 November and 2 December, the visibility was less than 2 km with a relative humidity (RH) over 90%, indicating there was fog weather in Tianjin. The dust influx from the northwest direction mixed with ground pollutants, increased the PM2.5 and PM10 mass concentrations and enhanced the air pollution with the cumulative peak value of the PM2.5 mass concentration reaching over 300 mu g/m(3) on 26 November. On 27 November and 3 December, the wind speed increased and large dust particles were transported to Tianjin, the PM10 mass concentration exceeded a much higher value of 550 mu g/m(3) whereas the PM2.5 mass concentration decreased to its lowest value, indicating dust weather followed the typical haze-fog pollution period in Tianjin. The ground lidar observations indicated that a large amount of non-spherical dust aerosols transmitted to Tianjin at 1.5 similar to 2.5 km height and settled down near the ground, which substantially affected the aerosol optical characteristics and air quality over the area. The influx of dust successive after the haze-fog weather, aggravated the air pollution process in Tianjin area, make it lasting for 153 h.
英文关键词	Dust Haze-fog Air quality CALIPSO Himawari-8 Lidar
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000558538000016
WOS关键词	INTEGRATED ANALYSIS ; VERTICAL STRUCTURE ; ASIAN DUST ; CHINA ; POLLUTION ; CLOUDS ; IMPACT
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325553
作者单位	[Zhao, Liying; Wang, Wencai; Qu, Wenjun; Sheng, Lifang; Luo, Chenghan; An, Xiadong; Zhou, Yang] Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China; [Wang, Wencai] Ocean Univ China, Key Lab Phys Oceanog, Qingdao 266100, Peoples R China; [Hao, Tianyi] Tianjin Environm Meteorol Ctr, Tianjin 300000, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Liying,Wang, Wencai,Hao, Tianyi,et al. The autumn haze-fog episode enhanced by the transport of dust aerosols in the Tianjin area[J],2020,237.
APA	Zhao, Liying.,Wang, Wencai.,Hao, Tianyi.,Qu, Wenjun.,Sheng, Lifang.,...&Zhou, Yang.(2020).The autumn haze-fog episode enhanced by the transport of dust aerosols in the Tianjin area.ATMOSPHERIC ENVIRONMENT,237.
MLA	Zhao, Liying,et al."The autumn haze-fog episode enhanced by the transport of dust aerosols in the Tianjin area".ATMOSPHERIC ENVIRONMENT 237(2020).