气候变化领域集成服务门户(CCPortal): Overestimation of anthropogenic contribution of heavy metals in precipitation than those of aerosol samples due to different treatment methods

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DOI	10.1016/j.envpol.2022.118956
	Overestimation of anthropogenic contribution of heavy metals in precipitation than those of aerosol samples due to different treatment methods
	Xu, Yinbo; Li, Qing; Xie, Shiyou; Zhang, Chao; Yan, Fangping; Liu, Yixi; Kang, Shichang; Gao, Shaopeng; Li, Chaoliu
通讯作者	Li, CL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0269-7491
EISSN	1873-6424
卷号	300
英文摘要	Due to increased anthropogenic activities in recent decades, many heavy metal elements have been emitted into the atmosphere and transported to remote regions. The Enrichment factors (EFs) is a normally used method for evaluating the source of heavy metal elements. However, because of some flaws of this method (e.g., higher solubility of heavy metals elements than reference elements in dilute acid), the anthropogenic contributions of some heavy metal elements in the precipitation sample were overestimated. To address this issue, EFs of heavy metal elements of aerosol, precipitation and snowpit samples in a typical remote area of the Tibetan Plateau (TP) were compared. The results showed that the EF values of many heavy metal elements in precipitation and snowpit samples were close to that of aerosol samples treated with dilute acid but usually much higher than those of totally dissolved aerosol samples. Moreover, EF values of most heavy metal elements in the ice core at the margin of the TP were higher than those at central TP, indicating that signal of long-range transport anthropogenic emitted heavy metal elements is weak and may be covered by natural mineral dust sources at glacier region. Therefore, the threshold EF values for determining anthropogenic sources of heavy metal elements in precipitation and ice core samples should be higher than those of aerosols. This study provides new knowledge on investigating anthropogenic sources of heavy metals in precipitation samples at both the TP and other regions of the world.
关键词	NAM CO REGION TIBETAN PLATEAU TRACE-ELEMENTS ATMOSPHERIC DEPOSITION SEASONAL-VARIATION BLACK CARBON ICE MONSOON RECORD PM2.5
英文关键词	Enrichment factors; Aerosol; Precipitation; Ice core; Heavy metal elements
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000758457700004
来源期刊	ENVIRONMENTAL POLLUTION
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253817
作者单位	[Xu, Yinbo; Li, Qing; Xie, Shiyou] Southwest Univ, Sch Geog Sci, Chongqing 400045, Peoples R China; [Xu, Yinbo; Yan, Fangping; Liu, Yixi; Kang, Shichang; Li, Chaoliu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Zhang, Chao; Gao, Shaopeng] Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resource, Beijing 100101, Peoples R China; [Zhang, Chao; Liu, Yixi; Kang, Shichang; Li, Chaoliu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xu, Yinbo,Li, Qing,Xie, Shiyou,et al. Overestimation of anthropogenic contribution of heavy metals in precipitation than those of aerosol samples due to different treatment methods[J]. 中国科学院西北生态环境资源研究院,2022,300.
APA	Xu, Yinbo.,Li, Qing.,Xie, Shiyou.,Zhang, Chao.,Yan, Fangping.,...&Li, Chaoliu.(2022).Overestimation of anthropogenic contribution of heavy metals in precipitation than those of aerosol samples due to different treatment methods.ENVIRONMENTAL POLLUTION,300.
MLA	Xu, Yinbo,et al."Overestimation of anthropogenic contribution of heavy metals in precipitation than those of aerosol samples due to different treatment methods".ENVIRONMENTAL POLLUTION 300(2022).