干旱区生态环境知识资源中心(Arid): Spatial distribution and source identification of heavy metals in a typical Pb/Zn smelter in an arid area of northwest China

Arid

DOI	10.1080/10807039.2018.1539640
	Spatial distribution and source identification of heavy metals in a typical Pb/Zn smelter in an arid area of northwest China
	Fan, Shuanxi 1,2; Wang, Xudong 1; Lei, Ji 2; Ran, Qiqi 2; Ren, Yuanxin 2; Zhou, Jinhong 2
通讯作者	Wang, Xudong
来源期刊	HUMAN AND ECOLOGICAL RISK ASSESSMENT
ISSN	1080-7039
EISSN	1549-7860
出版年	2019
卷号	25 期号:7 页码:1661-1687
英文摘要	Heavy-metal pollution has become a serious problem in the vicinity of mining sites. In this study, we investigated the pollution degree and spatial distribution of heavy metals and determined their sources in soil near a typical Pb/Zn smelter in an arid area of northwest China. The pollution degree, spatial distribution and source identification of heavy metals were evaluated and analyzed by the geo-accumulation index (I-geo), enrichment factor (EF), ArcGIS-based kriging interpolation models and multivariate statistical techniques. The results showed that the average concentrations of Pb, Zn, Cd and Cu were higher than their background contents of Shaanxi Province. The results of chemical speciation fractions show that the non-residual fraction (Acid soluble + Reducible + Oxidizable) of Pb, Zn and Cd were greater than the residual fractions of the same elements, while the results of Cr, Cu and Mn were just contrary. The I-geo values demonstrated that the issue of soils contaminated by Pb, Zn and Cd in this area is very serious, where Cd pollution was the most significant. The EF values decrease in the following order: Cd > Zn > Pb > Cu > Cr, and indicating Cd was extremely severe enrichment. The spatial distribution indicated that Pb, Zn, Cd and Cu mainly originated from smelting activities, which were heavily accumulated in topsoils and decreased with increasing soil depth in the profile distribution. The indexes of I-geo and EF showed that Pb, Zn, Cd and Cu were the most important contaminants, which had the same sources, deriving from anthropogenic metal smelting activities. These results can serve as a basis for designing effective strategies to prevent, control and reduce further heavy-metal contamination of the soils. Meanwhile, the relevant study methods, study hypotheses and methodologies may provide certain reference significance for the study of soil pollution from similar heavy metals.
英文关键词	Heavy metal soil pollution ecological risk spatial distribution source identification
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000486992200003
WOS关键词	HEALTH-RISK ASSESSMENT ; SEQUENTIAL EXTRACTION PROCEDURE ; AGRICULTURAL SOILS ; SURFACE SEDIMENTS ; SOURCE APPORTIONMENT ; POLLUTION ASSESSMENT ; GEO-ACCUMULATION ; INDUSTRIAL-AREA ; TRACE-ELEMENTS ; ROAD DUST
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216148
作者单位	1.Northwest Agr & Forest Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China; 2.Baoji Univ Arts & Sci, Coll Geog & Environm Engn, Shaanxi Key Lab Disaster Monitoring & Mech Simula, Baoji, Peoples R China
推荐引用方式 GB/T 7714	Fan, Shuanxi,Wang, Xudong,Lei, Ji,et al. Spatial distribution and source identification of heavy metals in a typical Pb/Zn smelter in an arid area of northwest China[J]. 西北农林科技大学,2019,25(7):1661-1687.
APA	Fan, Shuanxi,Wang, Xudong,Lei, Ji,Ran, Qiqi,Ren, Yuanxin,&Zhou, Jinhong.(2019).Spatial distribution and source identification of heavy metals in a typical Pb/Zn smelter in an arid area of northwest China.HUMAN AND ECOLOGICAL RISK ASSESSMENT,25(7),1661-1687.
MLA	Fan, Shuanxi,et al."Spatial distribution and source identification of heavy metals in a typical Pb/Zn smelter in an arid area of northwest China".HUMAN AND ECOLOGICAL RISK ASSESSMENT 25.7(2019):1661-1687.