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Temporal Variation and Ecological Risk Assessment of Metals in Soil Nearby a Pb-Zn Mine in Southern China
Cao, Congcong1,2; Wang, Li1; Li, Hairong1,2; Wei, Binggan1; Yang, Linsheng1,2
2018-05-01
Source PublicationINTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN1660-4601
Volume15Issue:5Pages:13
Corresponding AuthorWei, Binggan(weibg@igsnrr.ac.cn) ; Yang, Linsheng(yangls@igsnrr.ac.cn)
AbstractMetal contamination in soil from tailings induces risks for the ecosystem and for humans. In this study, the concentrations and ecological risks of Cd, Cu, Pb, and Zn in soil contaminated by a tailing from Yangshuo (YS) lead and zinc (Pb-Zn) mine, which collapsed for more than 40 years, were determined in 2015. The mean concentrations of Zn, Pb, Cu, and Cd were 1301.79, 768.41, 82.60, and 4.82 mg/kg, respectively, which, with years of remediation activities, decreased by 66.9%, 61.7%, 65.4%, and 65.3% since 1986, but still exceed the national standards. From 1986 to 2015, soil pH increased significantly, with available concentrations of Zn, Pb, Cu and Cd decreasing by 13%, 81%, 77%, and 67%, respectively, and potential ecological risk indexes (E-r) of the determined metals decreasing by more than 60%. Horizontally, total contents and percentages of available concentrations of Zn, Pb, Cu, and Cd decreased with the distance from the tailing heap in SD village, while pH values showed the reverse pattern. Vertically, Zn and Cd, Pb, and Cu showed similar vertical distribution patterns in the soil profiles. There was a slight downward migration for the determined metals in soil of M and H area and the mobility was in the order of Cd > Zn > Pb > Cu. It can be concluded that although concentrations and ecological risks of Cd, Cu, Pb, and Zn in soil decreased significantly, SD village is still a high risk area, and the priority pollutant is Cd.
Keywordtailing metals ecological risk metal profile metal distribution
DOI10.3390/ijerph15050940
WOS KeywordHEAVY-METALS ; HUMAN HEALTH ; CONTAMINATION ; SEDIMENTS ; WASTE ; URBAN ; ZINC ; AREA ; GIS ; FRACTIONATION
Indexed BySCI
Language英语
Funding ProjectCultivation, Construction and Service Project of Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences[TSYJS-01] ; National Key Research and Development Program of China[2016YFD0801004]
Funding OrganizationCultivation, Construction and Service Project of Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences ; National Key Research and Development Program of China
WOS Research AreaEnvironmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS SubjectEnvironmental Sciences ; Public, Environmental & Occupational Health
WOS IDWOS:000435197300108
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54636
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWei, Binggan; Yang, Linsheng
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, 11 A Datun Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Cao, Congcong,Wang, Li,Li, Hairong,et al. Temporal Variation and Ecological Risk Assessment of Metals in Soil Nearby a Pb-Zn Mine in Southern China[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2018,15(5):13.
APA Cao, Congcong,Wang, Li,Li, Hairong,Wei, Binggan,&Yang, Linsheng.(2018).Temporal Variation and Ecological Risk Assessment of Metals in Soil Nearby a Pb-Zn Mine in Southern China.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,15(5),13.
MLA Cao, Congcong,et al."Temporal Variation and Ecological Risk Assessment of Metals in Soil Nearby a Pb-Zn Mine in Southern China".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 15.5(2018):13.
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