生态学杂志2017，Vol.36Issue(5)：1408-1418,11.DOI:10.13292/j.1000-4890.201705.015
白银市不同功能区土壤重金属污染特征及其健康风险评价
Heavy metal pollution characteristics and human health risk assessment in soils from different functional areas of Baiyin， Gansu, China
摘要
Abstract
In this study,we determined the contents of 8 soil heavy metals (As,Cd,Cr,Cu,Hg,Ni,Pb and Zn) in surface soils.These soil samples were collected from five different functional areas of Baiyin City,i.e.,living area,industrial district,traffic area,park green space and mountain area.We evaluated the level of heavy metal pollution and human health risk by the single pollution index,composite pollution index and health risk assessment model.The results showed that soil Cu,Cd,Hg,Pb and Zn levels of all functional areas in Baiyin City exceeded the background values of Gansu.Composite pollution index showed that the pollution levels of the different functional areas decreased in the order of industrial district ＞ traffic area ＞ park green space ＞ living area ＞ mountain area.In addition,soil Hg,Zn,Pb and Cd pollution in all functional areas except mountain area were more serious than other heavy metals,and Hg pollution was the most serious.Health risk assessment model showed that HI and TCR values of heavy metals to children were higher than those to adults.Besides,HI and TCR of different functional areas followed a pattern of industrial district,living area ＞ traffic area ＞ park green space ＞ mountain area.Among the heavy metals,As,Cr and Pb were the three most important factors contributing to HI in all functional areas,and As and Cr were the two most important factors contributing to TCR in all functional areas.关键词
污染评价/健康评价/土壤/重金属/功能区Key words
pollution assessment/health assessment/soil/heavy metal/functional area引用本文复制引用
李有文,王晶,巨天珍,王莉,林宁,张胜楠,查向浩..白银市不同功能区土壤重金属污染特征及其健康风险评价[J].生态学杂志,2017,36(5):1408-1418,11.基金项目
国家自然科学基金项目(41161080)资助. （41161080）
