农业资源与环境学报2016，Vol.33Issue(3)：221-229,9.DOI:10.13254/j.jare.2015.0306
云南会泽铅锌冶炼厂周边土壤重金属污染特征及健康风险评价
Contaminant Characteristics and Health Risk Assessment of Heavy Metals in Soils from Lead-Zincs Melting Plant in Huize County, Yunnan Province, China
摘要
Abstract
In order to explore history environmental problems of lead-zinc smelting, Huize County, Yunnan Province, forty-two surface soil samples were collected randomly from 14 sampling sites surrounding lead-zinc smelting plant. Heavy metals (Cr, Cu, Mn, Ni, Pb, Zn, Cd, As and Hg) in all samples were determined by inductively coupled plasma- optical emission spectroscopy and atomic fluorescence spectrophotometer. Contamination characteristics of heavy metals in soils were observed on the basis of background values of comprehensive pollution index method. Potential risk was evaluated by using the geoaccumulation index(Igeo), potential ecological risk index(RI)and health risk assessment method. The results indicated that the average concentrations of Cr, Cu, Mn, Ni, Pb, Zn, Cd, As and Hg were 92.25, 226.81, 1567.45, 65.16, 394.66, 1451.63, 11.16, 43.81, 0.47 mg·kg-1, respectively. Based on the Environmental Quality Standard for Soil, the multiple super scale of Cd concentration was highest, more than 274 times. According to the Igeo, Cd ranged from partial severity to serious degree. The RI indicated that the soils around lead-zinc smelting plant were at the serious ecological hazard level. Health risk assessment showed that Pb and Cd in soils surrounding old site had potential health risk to children.关键词
铅锌冶炼厂/土壤/重金属/污染特征/健康风险评价Key words
lead-zinc smelting plant/soil/heavy metal/contaminant characteristics/human risk assessment分类
资源环境引用本文复制引用
刘小燕,陈棉彪,李良忠,胡国成,黄建洪,刘珊,张丽娟,于云江..云南会泽铅锌冶炼厂周边土壤重金属污染特征及健康风险评价[J].农业资源与环境学报,2016,33(3):221-229,9.基金项目
国家环保公益性行业科研专项项目(201309049,201309047,201409022) （201309049,201309047,201409022）
