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Contamination and health risks of soil heavy metals around a lead/zinc smelter in southwestern China.
Ecotoxicol Environ Saf. 2015 Mar; 113:391-9.EE

Abstract

Anthropogenic emissions of toxic metals from smelters are a global problem. The objective of this study was to investigate the distribution of toxic metals in soils around a 60 year-old Pb/Zn smelter in a town in Yunnan Province of China. Topsoil and soil core samples were collected and analyzed to determine the concentrations of various forms of toxic metals. The results indicated that approximately 60 years of Pb/Zn smelting has led to significant contamination of the local soil by Zn, Pb, Cd, As, Sb, and Hg, which exhibited maximum concentrations of 8078, 2485, 75.4, 71.7, 25.3, and 2.58mgkg(-1), dry wet, respectively. Other metals, including Co, Cr, Cu, Mn, Ni, Sc, and V, were found to originate from geogenic sources. The concentrations of smelter driven metals in topsoil decreased with increasing distance from the smelter. The main contamination by Pb, Zn, and Cd was found in the upper 40cm of soil around the Pb/Zn smelter, but traces of Pb, Zn, and Cd contamination were found below 100cm. Geogenic Ni in the topsoil was mostly bound in the residual fraction (RES), whereas anthropogenic Cd, Pb, and Zn were mostly associated with non-RES fractions. Therefore, the smelting emissions increased not only the concentrations of Cd, Pb, and Zn in the topsoil but also their mobility and bioavailability. The hazard quotient and hazard index showed that the topsoil may pose a health risk to children, primarily due to the high Pb and As contents of the soil.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Li P
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, China; Beijing Key Laboratory of Industrial Land Contamination and Remediation, Environmental Protection Research Institute of Light Industry, Beijing, China.
Lin C
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, China. Electronic address: c.lin@bnu.edu.cn.
Cheng H
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, China.
Duan X
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China.
Lei K
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing, China.

MeSH

ChildChinaHumansLeadMetallurgyMetals, HeavyRisk AssessmentSoilSoil PollutantsTrace ElementsZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25540851

Citation

Li, Peizhong, et al. "Contamination and Health Risks of Soil Heavy Metals Around a Lead/zinc Smelter in Southwestern China." Ecotoxicology and Environmental Safety, vol. 113, 2015, pp. 391-9.
Li P, Lin C, Cheng H, et al. Contamination and health risks of soil heavy metals around a lead/zinc smelter in southwestern China. Ecotoxicol Environ Saf. 2015;113:391-9.
Li, P., Lin, C., Cheng, H., Duan, X., & Lei, K. (2015). Contamination and health risks of soil heavy metals around a lead/zinc smelter in southwestern China. Ecotoxicology and Environmental Safety, 113, 391-9. https://doi.org/10.1016/j.ecoenv.2014.12.025
Li P, et al. Contamination and Health Risks of Soil Heavy Metals Around a Lead/zinc Smelter in Southwestern China. Ecotoxicol Environ Saf. 2015;113:391-9. PubMed PMID: 25540851.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contamination and health risks of soil heavy metals around a lead/zinc smelter in southwestern China. AU - Li,Peizhong, AU - Lin,Chunye, AU - Cheng,Hongguang, AU - Duan,Xiaoli, AU - Lei,Kai, Y1 - 2014/12/23/ PY - 2014/09/29/received PY - 2014/12/08/revised PY - 2014/12/14/accepted PY - 2014/12/26/entrez PY - 2014/12/30/pubmed PY - 2015/8/22/medline KW - Contamination KW - Health risk KW - Heavy metal KW - Lead KW - Soil KW - Zinc SP - 391 EP - 9 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 113 N2 - Anthropogenic emissions of toxic metals from smelters are a global problem. The objective of this study was to investigate the distribution of toxic metals in soils around a 60 year-old Pb/Zn smelter in a town in Yunnan Province of China. Topsoil and soil core samples were collected and analyzed to determine the concentrations of various forms of toxic metals. The results indicated that approximately 60 years of Pb/Zn smelting has led to significant contamination of the local soil by Zn, Pb, Cd, As, Sb, and Hg, which exhibited maximum concentrations of 8078, 2485, 75.4, 71.7, 25.3, and 2.58mgkg(-1), dry wet, respectively. Other metals, including Co, Cr, Cu, Mn, Ni, Sc, and V, were found to originate from geogenic sources. The concentrations of smelter driven metals in topsoil decreased with increasing distance from the smelter. The main contamination by Pb, Zn, and Cd was found in the upper 40cm of soil around the Pb/Zn smelter, but traces of Pb, Zn, and Cd contamination were found below 100cm. Geogenic Ni in the topsoil was mostly bound in the residual fraction (RES), whereas anthropogenic Cd, Pb, and Zn were mostly associated with non-RES fractions. Therefore, the smelting emissions increased not only the concentrations of Cd, Pb, and Zn in the topsoil but also their mobility and bioavailability. The hazard quotient and hazard index showed that the topsoil may pose a health risk to children, primarily due to the high Pb and As contents of the soil. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/25540851/Contamination_and_health_risks_of_soil_heavy_metals_around_a_lead/zinc_smelter_in_southwestern_China_ DB - PRIME DP - Unbound Medicine ER -