Contamination assessment,source apportionment and associated health risks of PTEs in agricultural soil under five land-use patterns in Sanya,China

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外文摘要：To understand the levels of potentially toxic elements(PTEs)contamination in soils and their effects on human health from different agricultural land use in Sanya,China.128 soil samples(64 topsoil samples and corresponding subsoil samples)were collected from the five representative land-use patterns.Inductively coupled plasma mass spectrometry(ICP-MS),Atomic fluorescence spectrometry(AFS),and Inductively coupled plasma optical emission spectrometry(ICP-OES)were used to determine the content of PTEs(As,Cd,Hg,Cu,Cr,Ni,Pb,Zn,Co,Mo,Sb,and V).Correlation analysis and factor analysis were used to determine the source of PTEs.Geo-accumulation index(Igeo),hazard quotient(HQ),and total carcinogenic risk index(TR)were used to measure the PTEs contamination and its relative health impacts.Results showed that the average values of 12 PTEs in topsoil were higher than the Hainan soil geochemical baseline,showing different degrees of PTEs accumulation effect.The concentration of PTEs in the topsoil was lower than those in the subsoil except for Cd and Hg.The Igeo revealed that the major accumulated element in soils was As followed by Mo.Source apportionment suggested that parent materials and agricultural practices were the dominant factors for PTEs accumulation in the topsoil.Non-carcinogenic risks of soil samples from five land-use patterns presented a trend of paddy field＞dry field＞woodland＞orchard＞garden plot.However,the HQ values of 12 PTEs were less than the recommended limit of HQ=1,representing that there are no non-carcinogenic risks of PTEs for children and adults in the study area.The TR values are within 6.95× 10 6-1.38× 10-5,which corresponds to the low level.Therefore the PTEs in the agricultural soil of the study area show little influence on the health status of the local population.

外文关键词：

Potentially toxic trace elements(PTEs)SoilsLand-useGeo-accumulation index(Igeo)Hazard quotient(HQ)Total carcinogenic risk index(TR)Source apportionmentHealth riskAgricutural geological survey engineering

作者：

Jian-zhou Yang、Yan-gang Fu、Qiu-li Gong、Sheng-ming Ma、Jing-jing Gong、Jian-weng Gao、Zhen-liang Wang、Yong-wen Cai、Shi-xin Tang

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作者单位：

Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,China Geological Survey,Langfang 065000,China

Key Laboratory of Coupling Process and Effect of Natural Resources Elements,Ministry of Natural Resources,Beijing 100055,China

基金：

Open Foundation of the Key Laboratory of Coupling Process and Effect of Natural Resources ElementsScience &Technology Fundamental Resources Investigation ProgramNational Nonprofit Institute Research Grant of IGGEprojects of the China Geological Surveyprojects of the China Geological SurveyNational Natural Science Foundation of China

项目编号：

2023KFKTB0012022FY101800AS2023D01DD20230309DD2019030542002105

出版年：

2024

DOI：

10.31035/cg2023078

中国地质(英文)

中国地质调查局,中国地质科学院

中国地质(英文)

CSTPCD

ISSN：2096-5192

年,卷(期)：2024.7(3)