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攀西地区主要蔬菜基地土壤重金属含量及评价
引用本文:周娅,杨定清,雷绍荣.攀西地区主要蔬菜基地土壤重金属含量及评价[J].四川环境,2008,27(2):67-70.
作者姓名:周娅  杨定清  雷绍荣
作者单位:四川省农业科学院分析测试中心,成都,610066
摘    要:对攀西地区米易县蔬菜基地的土壤进行采样,用原子吸收和石墨炉光谱法分析土壤中Cr、Cu、Ni、Zn、Pb、Cd、As和Hg8种元素的含量。蔬菜基地土壤重金属平均含量分别为Cr 68.8mg/kg、Cu 22.3mg/kg、Ni27.6mg/kg、Zn 146.2mg/kg、Pb31.7mg/kg、Cd0.258mg/kg、As10.3mg/kg、Hg0.0618mg/kg。根据土壤环境质量标准(GB15618—1995)对检测结果进行了单因子和多因子综合污染指数评价。分析表明调查区内少部分蔬菜基地土壤受到轻度重金属污染,主要污染物为Cd元素,其余重金属元素的含量均在安全警戒线内。

关 键 词:土壤  重金属污染  环境质量评价
文章编号:1001-3644(2008)02-0067-04
修稿时间:2007年12月12

Heavy Metal Content of Soil in Panxi Vegetable Plantations and Their Assessment
ZHOU Ya,YANG Ding-qing,LEI Shao-rong.Heavy Metal Content of Soil in Panxi Vegetable Plantations and Their Assessment[J].Sichuan Environment,2008,27(2):67-70.
Authors:ZHOU Ya  YANG Ding-qing  LEI Shao-rong
Institution:(Analysis & Test Center, Sichuan Academy of Agricultural Science, Chengdu 610066, China)
Abstract:The soil was sampled in vegetable planting bases in Miyi county of Panxi. The levels of heavy metals in soil sample were determined by atomic adsorption spectrometry and graphite furnace atomic emission spectrometry. The results showed that the average content of Cr, Cu, Ni, Zn, Pb, Cd, As and Hg were 68.8, 22.3, 27.6, 146.2, 31.7g, 0.258, 10.3 and 0. 0618 mg/kg respectively. According to the Standard for Soft Environment Quality (GB15618 -1995 ), the data were assessed using the integrated pollution indexes of single factor and multi - factor. The results showed that little part of the vegetable planting area were lightly polluted by heavy metals of which Cd was the main one and the content of metals else were in the safety siding.
Keywords:Soil  heavy metal pollution  evaluation on environmental quality
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