干旱区生态环境知识资源中心(Arid): Transport pathways of PM10 during the spring in northwest China and its characteristics of potential dust sources

Arid

DOI	10.1016/j.jclepro.2019.117746
	Transport pathways of PM10 during the spring in northwest China and its characteristics of potential dust sources
	Guan, Qingyu 1; Yang, Yanyan ; Luo, Haiping ; Zhao, Rui ; Pan, Ninghui ; Lin, Jinkuo ; Yang, Liqin
通讯作者	Guan, Qingyu
来源期刊	JOURNAL OF CLEANER PRODUCTION
ISSN	0959-6526
EISSN	1879-1786
出版年	2019
卷号	237
英文摘要	Dust storms that occur frequently during the spring in the arid and semiarid regions of northwest China can significantly increase PM10 loadings in the local area and its surroundings, and impair environmental ecology, human activity and health. Based on the monitoring data of PM10 and backward trajectories of air parcels calculated by the Hybrid Single Particle Lagrangian Integrated Trajectory model in Jiayuguan, Jinchang and Lanzhou during the spring seasons from 2014 to 2017, trajectory cluster analysis was used to identify the major transport pathways of PM10, and concentration-weighted trajectory and trajectory sector analysis were applied to identify the potential sources and quantify regional transported contributions. The results showed that there were major transport pathways coming from three directions: the northwestern pathways (for Jinchang and Lanzhou), the western pathways (for Jiayuguan and Lanzhou), and the northern pathways (for Jiayuguan and Jinchang). The corresponding potential dust sources for these pathways were the northwesterly sources, the westerly sources and the northerly sources, respectively. In addition, the northern Tibetan Plateau was another important source affecting Jiayuguan. There were distinct differences among the regional transport contributions from various directions. The nib ) concentrations (percentages) that exogenous dust sources contributed to Jiayuguan, Jinchang and Lanzhou decreased in a sequence from west to east at 47 mu g/m(3) (29.8%), 40 mu g/m(3) (27.1%) and 26 mu g/m(3) (17.3%), respectively, which were attributed predominantly to the long-range transport of dust sources with the remainder coming from local or nearby emissions. The above decreasing tendency was in accordance with the distance effect from the dust sources to the receptor sites. (C) 2019 Elsevier Ltd. All rights reserved.
英文关键词	PM10 Trajectory cluster analysis Concentration-weighted trajectory Trajectory sector analysis Long-range transport
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000483462700009
WOS关键词	ATMOSPHERIC PARTICULATE MATTER ; LONG-RANGE TRANSPORT ; SOURCE APPORTIONMENT ; NORTHERN CHINA ; EAST-ASIA ; REGIONAL SOURCES ; GANSU PROVINCE ; SOURCE AREA ; AEROSOL ; STORMS
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
EI主题词	2019-11-10
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/2XILL650/310813
作者单位	1.Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ, Gansu Key Lab Environm Pollut Predict & Control, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Guan, Qingyu,Yang, Yanyan,Luo, Haiping,et al. Transport pathways of PM10 during the spring in northwest China and its characteristics of potential dust sources[J]. 兰州大学,2019,237.
APA	Guan, Qingyu.,Yang, Yanyan.,Luo, Haiping.,Zhao, Rui.,Pan, Ninghui.,...&Yang, Liqin.(2019).Transport pathways of PM10 during the spring in northwest China and its characteristics of potential dust sources.JOURNAL OF CLEANER PRODUCTION,237.
MLA	Guan, Qingyu,et al."Transport pathways of PM10 during the spring in northwest China and its characteristics of potential dust sources".JOURNAL OF CLEANER PRODUCTION 237(2019).