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Source identification of eight heavy metals in grassland soils by multivariate analysis from the Baicheng-Songyuan area, Jilin Province, Northeast China.
Chemosphere. 2015 Sep; 134:67-75.C

Abstract

The characterization of the concentration, chemical speciation and source of heavy metals in soils is an imperative for pollution monitoring and the potential risk assessment of the metals to animal and human health. A total of 154 surface horizons and 53 underlying horizons of grassland soil were collected from the Baicheng-Songyuan area in Jilin Province, Northeast China, in which the concentrations and chemical fractionations of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn were investigated. The mean concentrations of heavy metals in grassland topsoil were 7.2, 0.072, 35, 16.7, 0.014, 15.2, 18.3 and 35 mg kg(-)(1) for As, Cd, Cr, Cu, Hg, Ni, Pb and Zn, respectively, and those averaged contents were lower than their China Environmental Quality Standard values for the Soils, implying that heavy metal concentrations in the studied soils were of the safety levels. The mobility sequence of the heavy metals based on the sum of the soluble, exchangeable, carbonate-bound and humic acid-bound fractions among the seven fractions decreased in the order of Cd 50.4%)>Hg (39.8%)>Cu (26.5%)>As (19.9%)>Zn (19.1%)>Ni (15.9%)>Pb (14.1%)>Cr (4.3%), suggesting Cd and Hg may pose more potential risk of soil contamination than other metals. Multivariate statistical analysis suggested that As, Cr, Cu, Ni, Pb, Zn, Cd and Hg had the similar lithogenic sources, however, Cd and Hg were more relevant to organic matter than other heavy metals, which was confirmed by the chemical speciation analysis of the metals. The study provides a base for local authority in the studied area to monitor the long term accession of heavy metals into grassland soil.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Chai Y
College of Geosciences, Jilin University, Changchun 130061, China.
Guo J
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China.
Chai S
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China. Electronic address: chaisl@jlu.edu.cn.
Cai J
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China.
Xue L
College of Geosciences, Jilin University, Changchun 130061, China.
Zhang Q
College of Earth Sciences, Quilin University of Technology, Guilin 541004, China.

MeSH

AnimalsCadmiumCarbonatesChinaCluster AnalysisEnvironmental MonitoringFood ChainGeographyGrasslandHumansHumic SubstancesHydrogen-Ion ConcentrationMercuryMetals, HeavyMultivariate AnalysisPoaceaePrincipal Component AnalysisRisk AssessmentSoilSoil Pollutants

Pub Type(s)

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

Language

eng

PubMed ID

25911049

Citation

Chai, Yuan, et al. "Source Identification of Eight Heavy Metals in Grassland Soils By Multivariate Analysis From the Baicheng-Songyuan Area, Jilin Province, Northeast China." Chemosphere, vol. 134, 2015, pp. 67-75.
Chai Y, Guo J, Chai S, et al. Source identification of eight heavy metals in grassland soils by multivariate analysis from the Baicheng-Songyuan area, Jilin Province, Northeast China. Chemosphere. 2015;134:67-75.
Chai, Y., Guo, J., Chai, S., Cai, J., Xue, L., & Zhang, Q. (2015). Source identification of eight heavy metals in grassland soils by multivariate analysis from the Baicheng-Songyuan area, Jilin Province, Northeast China. Chemosphere, 134, 67-75. https://doi.org/10.1016/j.chemosphere.2015.04.008
Chai Y, et al. Source Identification of Eight Heavy Metals in Grassland Soils By Multivariate Analysis From the Baicheng-Songyuan Area, Jilin Province, Northeast China. Chemosphere. 2015;134:67-75. PubMed PMID: 25911049.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Source identification of eight heavy metals in grassland soils by multivariate analysis from the Baicheng-Songyuan area, Jilin Province, Northeast China. AU - Chai,Yuan, AU - Guo,Jia, AU - Chai,Sheli, AU - Cai,Jing, AU - Xue,Linfu, AU - Zhang,Qingwei, Y1 - 2015/04/22/ PY - 2014/06/20/received PY - 2015/03/30/revised PY - 2015/04/05/accepted PY - 2015/4/26/entrez PY - 2015/4/26/pubmed PY - 2016/2/24/medline KW - Chemical speciation KW - Grassland soil KW - Heavy metals KW - Multivariate analysis KW - Northeast China SP - 67 EP - 75 JF - Chemosphere JO - Chemosphere VL - 134 N2 - The characterization of the concentration, chemical speciation and source of heavy metals in soils is an imperative for pollution monitoring and the potential risk assessment of the metals to animal and human health. A total of 154 surface horizons and 53 underlying horizons of grassland soil were collected from the Baicheng-Songyuan area in Jilin Province, Northeast China, in which the concentrations and chemical fractionations of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn were investigated. The mean concentrations of heavy metals in grassland topsoil were 7.2, 0.072, 35, 16.7, 0.014, 15.2, 18.3 and 35 mg kg(-)(1) for As, Cd, Cr, Cu, Hg, Ni, Pb and Zn, respectively, and those averaged contents were lower than their China Environmental Quality Standard values for the Soils, implying that heavy metal concentrations in the studied soils were of the safety levels. The mobility sequence of the heavy metals based on the sum of the soluble, exchangeable, carbonate-bound and humic acid-bound fractions among the seven fractions decreased in the order of Cd 50.4%)>Hg (39.8%)>Cu (26.5%)>As (19.9%)>Zn (19.1%)>Ni (15.9%)>Pb (14.1%)>Cr (4.3%), suggesting Cd and Hg may pose more potential risk of soil contamination than other metals. Multivariate statistical analysis suggested that As, Cr, Cu, Ni, Pb, Zn, Cd and Hg had the similar lithogenic sources, however, Cd and Hg were more relevant to organic matter than other heavy metals, which was confirmed by the chemical speciation analysis of the metals. The study provides a base for local authority in the studied area to monitor the long term accession of heavy metals into grassland soil. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/25911049/Source_identification_of_eight_heavy_metals_in_grassland_soils_by_multivariate_analysis_from_the_Baicheng_Songyuan_area_Jilin_Province_Northeast_China_ DB - PRIME DP - Unbound Medicine ER -