Geochemical baseline determination and contamination of heavy metals in the urban topsoil of Fuxin City,China
Geochemical baseline determination and contamination of heavy metals in the urban topsoil of Fuxin City, China作者机构：School of GeographyLiaoning Normal UniversityDalian 116029China
出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)
年 卷 期：2020年第12卷第6期
页 面：1001-1017页
核心收录：
学科分类：12[管理学] 082803[工学-农业生物环境与能源工程] 0709[理学-地质学] 08[工学] 0710[理学-生物学] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 083001[工学-环境科学] 0828[工学-农业工程] 0708[理学-地球物理学] 0815[工学-水利工程] 0705[理学-地理学] 120405[管理学-土地资源管理]
基 金：the National Natural Science Foundation of China(41271064) the Foundation of Liaoning Educational Committee,China(L201783640) the PhD Research Startup Foundation of Liaoning University,China(BS2018L014)
主 题：heavy metals urban topsoil geochemical baseline contamination index pedigree clustering heatmap
摘 要：Urban topsoil is the most frequent interface between human society and natural *** accumulation of heavy metals in the urban topsoil has a direct effect on residents life and *** geochemical baseline of heavy metals is an objective description of the general level of heavy metals in the urban ***,the determination of geochemical baseline is necessary for regional environmental management,especially in coal cities prone to heavy metal *** metal pollution has become an environmental problem in Fuxin City,China for a long *** establish the geochemical baseline of heavy metals in the topsoil of Fuxin City and to evaluate the ecological risk of the topsoil,we collected 75 topsoil samples(0–20 cm)and analyzed the concentrations of Cu,Ni,Zn,Pb,Cr,Cd,Hg and As through X-ray fluorescence spectrometry,atomic absorption spectrometry and inductively coupled plasma optical emission *** determined the geochemical baseline of heavy metals in the topsoil of Fuxin City by using iteration removal,box-whisker plot,cumulative frequency curve and reference metal normalization;evaluated the contamination risk and ecological risk of the topsoil by using the baseline factor index,Nemerow index and Hakanson potential ecological risk index;and identified the source category of heavy metals in the topsoil by using a pedigree clustering *** showed that the geochemical baseline values were 42.86,89.34,92.23,60.55,145.21,0.09,0.08 and 4.17 mg/kg for Cu,Ni,Zn,Pb,Cr,Cd,Hg and As,*** results of Nemerow index and Hakanson potential ecological risk index indicated that the urban topsoil in the study area was slightly contaminated and suffering low potential ecological *** main contaminated areas dominated in the middle part and northeast part of the study area,especially in the western Haizhou Strip *** result of baseline factor index indicated that Hg and Cd were the major pollution *** a pedig
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