干旱区生态环境知识资源中心(Arid): Contribution of dust in northern China to PM10 concentrations over the Hexi corridor

Arid

DOI	10.1016/j.scitotenv.2018.12.412
	Contribution of dust in northern China to PM10 concentrations over the Hexi corridor
	Guan, Qingyu 1; Luo, Haiping ; Pan, Ninghui ; Zhao, Rui ; Yang, Liqin ; Yang, Yanyan ; Tian, Jing
通讯作者	Guan, Qingyu
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	660 页码:947-958
英文摘要	Four main dust sources and dust events that affected the Hexi Corridorwere defined, and the HYSPLIT model was used to trace the dust that originated during the dust episodes of 2015-2017 and to quantify the contributions of dust sources to PM10. On this basis, an algorithm that quantified the contribution of dust sources to PM10 was proposed in this study. The results showed that the main dust sources affecting the Hexi Corridor are generally located in the northern part of Xinjiang, which is mainly dominated by the Gurbantunggut Desert (source A); the Taklimakan and Kumtag Deserts and their surrounding areas (source B); both Qaidam Basins (source C); and the Badain Jaran Desert, Tengger Desert, Hobq Desert, Ulan Buh Desert, and Mu Us Sandy Land and their surrounding areas (source D). The occurrence time of dust and the frequency of PM10 exceeded the daily concentration standards and showed significant characteristics of being high in the spring and low in the autumn. The higher concentration of PM10 in the winter was mainly due to anthropogenic sources from heating process. The contribution of source area D to PM10 concentration was the greatest (42%). Source area B was one of the main dust sources (with a contribution rate of 23%); however, approximately 63% of the dust in this area originates from the Kumtag Desert. The contribution of source area A is lower than that of the study area due to greater precipitation and higher vegetation coverage (22% contribution rate). Source area C has the lowest contribution to the research area due to obstruction by the Qilian Mountain (13% contribution rate). (c) 2019 Elsevier B.V. All rights reserved.
英文关键词	Hexi Corridor Dust events PM10 Sources contribution
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000457725700095
WOS关键词	MINERAL DUST ; ASIAN DUST ; STORM EVENTS ; EAST-ASIA ; DESERT DUST ; PARTICULATE MATTER ; AIR-QUALITY ; REGIONAL CHARACTERISTICS ; ATMOSPHERIC AEROSOLS ; TRANSPORT PATHWAYS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
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/2XILL650/218657
作者单位	1.Lanzhou Univ, Minist Educ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Guan, Qingyu,Luo, Haiping,Pan, Ninghui,et al. Contribution of dust in northern China to PM10 concentrations over the Hexi corridor[J]. 兰州大学,2019,660:947-958.
APA	Guan, Qingyu.,Luo, Haiping.,Pan, Ninghui.,Zhao, Rui.,Yang, Liqin.,...&Tian, Jing.(2019).Contribution of dust in northern China to PM10 concentrations over the Hexi corridor.SCIENCE OF THE TOTAL ENVIRONMENT,660,947-958.
MLA	Guan, Qingyu,et al."Contribution of dust in northern China to PM10 concentrations over the Hexi corridor".SCIENCE OF THE TOTAL ENVIRONMENT 660(2019):947-958.