干旱区生态环境知识资源中心(Arid): Characteristics of Dust Events in China from 2015 to 2020

Arid

DOI	10.3390/atmos12080952
	Characteristics of Dust Events in China from 2015 to 2020
	Yang, Lili; Zhang, Shuwen; Huang, Zhongwei; Yang, Yanping; Wang, Lina; Han, Wenyu; Li, Xiaoyun
通讯作者	Zhang, SW (corresponding author), Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou 730000, Peoples R China.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2021
卷号	12 期号:8
英文摘要	As the main source of dust in Asia, China often suffers from dust events. The temporal and spatial characteristics of dust events change with the variations of geography, climate and human activities. Based on the criteria of selecting dust events proposed recently by the China Environmental Monitoring Station, the hourly concentration of PM10 and PM2.5 of 336 cities in China from 2015 to 2020 were used to study the temporal and spatial characteristics of dust events more accurately and objectively. The results showed that all of the dust events in China clearly decreased, but the strong dust events did not decrease. There were 334 cities that had dust events except Shenzhen and Dongguan, 299 cities were seriously polluted due to dust events, 134 cities encountered dust level III and 56 cities encountered dust level IV. The high frequencies of dust events were mainly distributed in Northern China, especially in Northwest China. The dust contribution of PM10 to the cities in Northwest China was more than 10% and about 5-10% for PM2.5. The most likely month for dust was May. The starting time of dust was bimodally distributed, and the most common starting time was 10:00-11:00 BJT, followed by 22:00-23:00 BJT. According to the PSCF (Potential Source Contribution Function) results, the dust potential source contribution of different cities mainly came from the northwest, and was mainly affected by Mongolia in addition to the local dust in China. In addition, Beijing was obviously affected by dust recirculation. This study is of great significance to the improvement of the forecast of dust weather and the warning of heavy pollution caused by dust events.
英文关键词	dust events spatiotemporal distribution PSCF particulate concentration
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000688913500001
WOS关键词	STORM FREQUENCY ; INNER-MONGOLIA ; TRANSPORT ; DESERT
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362634
作者单位	[Yang, Lili; Zhang, Shuwen; Huang, Zhongwei; Yang, Yanping] Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou 730000, Peoples R China; [Yang, Lili; Yang, Yanping; Wang, Lina] Gansu Prov Environm Monitoring Ctr, Forecast Dept, Lanzhou 730020, Peoples R China; [Han, Wenyu] Lanzhou Ecol Environm Monitoring Ctr, Forecast Dept, Lanzhou 730000, Peoples R China; [Li, Xiaoyun] Wuxi CAS Photon Co Ltd, Mkt Ctr, Wuxi 214135, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Lili,Zhang, Shuwen,Huang, Zhongwei,et al. Characteristics of Dust Events in China from 2015 to 2020[J]. 兰州大学,2021,12(8).
APA	Yang, Lili.,Zhang, Shuwen.,Huang, Zhongwei.,Yang, Yanping.,Wang, Lina.,...&Li, Xiaoyun.(2021).Characteristics of Dust Events in China from 2015 to 2020.ATMOSPHERE,12(8).
MLA	Yang, Lili,et al."Characteristics of Dust Events in China from 2015 to 2020".ATMOSPHERE 12.8(2021).