New insights into particle-bound trace elements in surface snow, Eastern Tien Shan, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气污染控制中心

	New insights into particle-bound trace elements in surface snow, Eastern Tien Shan, China
	Huang, Ju; Wu, Guangjian; Zhang, Xuelei; Zhang, Chenglong
刊名	ENVIRONMENTAL POLLUTION
	2020-12
卷号	267 页码:1-9
关键词	Elemental composition Seasonal variation Pollution assessment Sources Glacier
ISSN号	0269-7491
英文摘要	Trace elements (TEs) in the insoluble particles of surface snow are less affected by melting processes and can be used as environmental proxies to reveal natural and anthropogenic emissions. Here the first comprehensive study of the 16 TEs (Al, As, Ba, Bi, Cr, Cu, Fe, Mn, Ni, Pb, Sn, Sr, Ti, U, V, and Zn) in insoluble particles (>0.45 mm) from surface snow samples collected at Urumqi Glacier No. 1 (UG1), Eastern Tien Shan, China, from February 2008 to January 2010 were presented. Results show that concentrations of most insoluble particulate TEs (TEs insol) in the snow were higher in summer while lower in winter, due to the increasing particle inputs and melting processes. The abundances of As, Cr, Cu, Ni, Pb, and Zn in some samples were higher than those in surrounding urban soils, which might due to these TEs have further anthropogenic input beyond the already contaminated re-suspended urban soil particles and TEs were mainly enriched in particles with small grain size. Based on enrichment factor (EF) and principal component analysis (PCA), our results suggest that eight TEs (Al, Fe, Ti, Ba, Mn, Sr, U, and V) mainly came from mineral dust, while the remaining eight TEs (As, Bi, Cr, Cu, Ni, Pb, Sn, and Zn) were affected by coal combustion, mining and smelting of non-ferrous metals, traffic emissions, and the steel industry. The Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model suggests that pollutants might originate from Xinjiang province, Kazakhstan, and Kyrgyzstan. Moreover, UG1 received more significant inputs of particle-bound pollutants in summer than in winter due to the stronger convection and the prevailing valley wind that transports pollutants from the city of Urumqi. (C) 2020 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44549]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Huang, Ju,Wu, Guangjian,Zhang, Xuelei,et al. New insights into particle-bound trace elements in surface snow, Eastern Tien Shan, China[J]. ENVIRONMENTAL POLLUTION,2020,267:1-9.
APA	Huang, Ju,Wu, Guangjian,Zhang, Xuelei,&Zhang, Chenglong.(2020).New insights into particle-bound trace elements in surface snow, Eastern Tien Shan, China.ENVIRONMENTAL POLLUTION,267,1-9.
MLA	Huang, Ju,et al."New insights into particle-bound trace elements in surface snow, Eastern Tien Shan, China".ENVIRONMENTAL POLLUTION 267(2020):1-9.