干旱区生态环境知识资源中心(Arid): Mineralogical similarities and differences of dust storm particles at Beijing from deserts in the north and northwest

Arid

DOI	10.1016/j.scitotenv.2021.149980
	Mineralogical similarities and differences of dust storm particles at Beijing from deserts in the north and northwest
	Wang, Wenhua; Shao, Longyi; Zhang, Daizhou; Li, Yaowei; Li, Wenjun; Liu, Pengju; Xing, Jiaoping
通讯作者	Shao, LY (corresponding author), China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China. ; Shao, LY (corresponding author), China Univ Min & Technol, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	803
英文摘要	Dust storm particles have been one of the important contributors to global aerosol loading, affecting human health and climate system. Beijing, a megapolitan city, experienced two severe dust storms in spring of 2015, with maximum hourly-mean PM10 mass concentrations exceeding 1000 mu g/m(3). The first dust storm (Dust 1) was from east area of Gobi Desert about 850 km in the north of Beijing and the second (Dust 2) was from west area of Gobi Desert about 1500 km in the northwest of Beijing. Morphologies and elemental compositions of dust particles were identified using high-resolution electron microscopy. The statistical analysis showed that the number fractions of mineral dust particles during the two dust storm episodes were 85.3% and 95.4%, respectively. Clay minerals were the most abundant among mineral particles, with a number fraction larger than 50%, followed by quartz particles (17.3% and 14.8%) and feldspar. Feldspar and carbonate particles accounted for 14.8% and 3.4% of mineral particles in Dust 1, and 9.9% and 13.6% in Dust 2, with the difference due to the different source areas. When the dust storms directly migrated to Beijing, the occurrence of S-containing mineral particles and the relative weight ratio of S in individual mineral particles were extremely low, indicating limited production of sulfate on the dust-storm particles in the atmosphere, regardless of the differences of source areas, migration paths, and mineralogical components. After the peaks of dust storms passed, the occurrence of S on the mineral particles were much higher, although the relative weight ratios of S in the mineral particles was still very small. This result suggests that most of the mineral particles underwent heterogeneous reactions, but the reaction rates were low. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Dust particles Individual particle analysis Migration paths Minerals Sulfate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000709082400014
WOS关键词	CHEMICAL-COMPOSITION ; ASIAN DUST ; AEROSOL-PARTICLES ; MIXING STATE ; SULFATE ; CLIMATE ; NITRATE ; EVENTS ; IMPACT ; CHINA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374486
作者单位	[Wang, Wenhua; Shao, Longyi; Li, Wenjun; Liu, Pengju] China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China; [Wang, Wenhua; Shao, Longyi; Li, Wenjun; Liu, Pengju] China Univ Min & Technol, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China; [Wang, Wenhua] Northeastern Univ, Sch Resources & Mat, Qinhuangdao 066004, Hebei, Peoples R China; [Zhang, Daizhou] Prefectural Univ Kumamoto, Fac Environm & Symbiot Sci, Kumamoto 8628502, Japan; [Li, Yaowei] Hebei GEO Univ, Hebei Ctr Ecol & Environm Geol Res, Shijiazhuang 050031, Hebei, Peoples R China; [Xing, Jiaoping] Jiangxi Agr Univ, Sch Forestry, Nanchang 330045, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wenhua,Shao, Longyi,Zhang, Daizhou,et al. Mineralogical similarities and differences of dust storm particles at Beijing from deserts in the north and northwest[J],2022,803.
APA	Wang, Wenhua.,Shao, Longyi.,Zhang, Daizhou.,Li, Yaowei.,Li, Wenjun.,...&Xing, Jiaoping.(2022).Mineralogical similarities and differences of dust storm particles at Beijing from deserts in the north and northwest.SCIENCE OF THE TOTAL ENVIRONMENT,803.
MLA	Wang, Wenhua,et al."Mineralogical similarities and differences of dust storm particles at Beijing from deserts in the north and northwest".SCIENCE OF THE TOTAL ENVIRONMENT 803(2022).