| 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 |
| |
| 引用本文： | 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].农业环境科学学报,2016,33(3):221-229. |
| |
| 作者姓名： | 刘小燕 陈棉彪 李良忠 胡国成 黄建洪 刘珊 张丽娟 于云江 |
| |
| 作者单位： | 环境保护部华南环境科学研究所, 广东 广州 510655;长安大学环境科学与工程学院, 陕西 西安 710064,环境保护部华南环境科学研究所, 广东 广州 510655,环境保护部华南环境科学研究所, 广东 广州 510655,环境保护部华南环境科学研究所, 广东 广州 510655,环境保护部华南环境科学研究所, 广东 广州 510655,长安大学环境科学与工程学院, 陕西 西安 710064,环境保护部华南环境科学研究所, 广东 广州 510655,环境保护部华南环境科学研究所, 广东 广州 510655 |
| |
| 基金项目： | 国家环保公益性行业科研专项项目(201309049,201309047,201409022) |
| |
| 摘 要： | 为进一步探讨云南会泽铅锌冶炼厂历史遗留的环境问题,掌握新址所在区域土壤环境质量状况,以会泽铅锌冶炼厂新、旧场址周边土壤作为研究对象,随机布设14个采样点,采集42个土壤样品,采用电感耦合等离子体发射光谱仪和原子荧光光谱仪测定土壤样品中的Cr、Cu、Mn、Ni、Pb、Zn、Cd、As、Hg。采用综合污染指数法、地积累指数法、潜在生态危害指数法和健康风险评价方法对土壤中重金属污染特征及其健康风险进行评价。结果表明,云南会泽铅锌冶炼厂周边土壤中Cr、Cu、Mn、Ni、Pb、Zn、Cd、As和Hg的平均含量水平分别为92.25、226.81、1567.45、65.16、394.66、1451.63、11.16、43.81、0.47mg·kg-1,除Cr、Hg外,其他重金属含量均超过《国家土壤环境质量标准》二级标准值,其中Cd的最高超标倍数为274倍。地积累指数评价结果表明,该区域土壤中Cd污染最为严重,处于偏重-极重污染范畴;潜在生态危害综合指数评价结果显示:该区域重金属污染处于强-很强的生态风险程度;健康风险评价结果表明:旧场址周边土壤中Pb、Cd对儿童均具有显著的潜在健康风险。
|
| 关 键 词： | 铅锌冶炼厂 土壤 重金属 污染特征 健康风险评价 |
| 收稿时间： | 2015/12/28 0:00:00 |
Contaminant Characteristics and Health Risk Assessment of Heavy Metals in Soils from Lead-Zincs Melting Plant in Huize County, Yunnan Province, China |
| |
| LIU Xiao-yan,CHEN Mian-biao,LI Liang-zhong,HU Guo-cheng,HUANG Jian-hong,LIU Shan,ZHANG Li-juan and YU Yun-jiang.Contaminant Characteristics and Health Risk Assessment of Heavy Metals in Soils from Lead-Zincs Melting Plant in Huize County, Yunnan Province, China[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2016,33(3):221-229. |
| |
| Authors: | LIU Xiao-yan CHEN Mian-biao LI Liang-zhong HU Guo-cheng HUANG Jian-hong LIU Shan ZHANG Li-juan and YU Yun-jiang |
| |
| Institution: | South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;School of Environmental Science and Engineering, Chang''an University, Xi''an 710064, China,South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China,South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China,South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China,South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China,School of Environmental Science and Engineering, Chang''an University, Xi''an 710064, China,South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China and South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China |
| |
| 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, 1 567.45, 65.16, 394.66, 1 451.63, 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. |
| |
| Keywords: | lead-zinc smelting plant soil heavy metal contaminant characteristics human risk assessment |
|
| 点击此处可从《农业环境科学学报》浏览原始摘要信息 |
| 点击此处可从《农业环境科学学报》下载免费的PDF全文 |
|
