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Apportionment of sources of heavy metals to agricultural soils using isotope fingerprints and multivariate statistical analyses
Pengcong Wang;  Zhonggen Li;  Jinling Liu;  Xiangyang Bi;  Yongqiang Ning;  Shaochen Yang;  Xiaojing Yang
2019
Source PublicationEnvironmental Pollution
Volume249Pages:208-216
Abstract

Apportioning sources of environmental pollutants is key to controlling pollution. In this study, the sources of heavy metals to 234 agricultural soils from the Jianghan Plain (JHP) (∼22454 km2) in central China were discriminated between using Cd and Pb isotope compositions and multivariate statistical analyses. Concentrations of some metals in JHP soils (0.48 ± 0.2, 48.2 ± 15.9, 0.12 ± 0.23, 48.8 ± 16.4, 36.5 ± 9.8, and 96.8 ± 42.2 mg kg−1 for Cd, Cu, Hg, Ni, Pb, and Zn, respectively) were higher than background concentrations in Chinese soil. The Cd isotope compositions for the JHP soils (δ114/110Cd values −0.76‰ to −0.25‰) were similar to Cd isotope compositions found for smelter dust and incinerator fly ash, indicating Cd was supplied to the JHP soils by ore smelting and/or refining processes. The Pb isotope compositions for the JHP soils (206Pb/207Pb 1.182–1.195 and 208Pb/206Pb 2.078–2.124) were between the Pb isotope compositions found for Chinese coal and natural sources, which a binary isotope mixing model indicated contributed 52% and 48%, respectively, of the Pb in JHP soils. Cluster analysis and positive matrix factorizationindicated that the sources of heavy metals in JHP soils may consist of smelting and/or refining activities, coal combustion, agricultural activities, and natural sources (including Han River sediment and soil parent materials). The isotope fingerprints and multivariate statistical analyses together indicated that coal combustion and smelting and/or refining activities were the main anthropogenic sources of heavy metals polluting JHP soils.

KeywordHeavy Metal agricultural Soil pb Isotope cd Isotope positive Matrix Factorization
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10203
Collection环境地球化学国家重点实验室
Affiliation1.Hubei Key Laboratory of Critical Zone Evolution, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China
2.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
4.School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
Recommended Citation
GB/T 7714
Pengcong Wang;Zhonggen Li;Jinling Liu;Xiangyang Bi;Yongqiang Ning;Shaochen Yang;Xiaojing Yang. Apportionment of sources of heavy metals to agricultural soils using isotope fingerprints and multivariate statistical analyses[J]. Environmental Pollution,2019,249:208-216.
APA Pengcong Wang;Zhonggen Li;Jinling Liu;Xiangyang Bi;Yongqiang Ning;Shaochen Yang;Xiaojing Yang.(2019).Apportionment of sources of heavy metals to agricultural soils using isotope fingerprints and multivariate statistical analyses.Environmental Pollution,249,208-216.
MLA Pengcong Wang;Zhonggen Li;Jinling Liu;Xiangyang Bi;Yongqiang Ning;Shaochen Yang;Xiaojing Yang."Apportionment of sources of heavy metals to agricultural soils using isotope fingerprints and multivariate statistical analyses".Environmental Pollution 249(2019):208-216.
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