铜陵市老洲乡蔬菜基地重金属污染现状评价
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摘要
以安徽省自然土壤背景值为参数,以国家土壤环境质量二级评价标准为依据,结合单污染指数和综合污染指数的计算,对铜陵市老洲乡蔬菜基地土壤重金属污染现状进行了评价。结果表明,土壤中5种重金属的平均含量均低于国家土壤重金属污染物二级标准,Hg、As和Cu的平均含量超过安徽省自然土壤背景值;但单项污染指标均未超过1.0,综合污染指数均在0.7以下,属于安全范围。
The research on the heavy mental content in the vegetable base of Laozhou Town,Tongling City,Anhui Province was introduced,by taking the background value of some heavy metalin natural soils of Anhui Province as references and the national environmental quality standard forsoils as the basis.The results showed that,the average content of the five heavy metals in this areawas lower than the national standards for Grade II.But the average contents of Hg,As and Cuexceeded the background value of some heavy mental in natural soils of Anhui Province.Eachpollution index was lower than 1.0 and the comprehensive pollution index was below 0.7,which werein the limits of safety.
The research on the heavy mental content in the vegetable base of Laozhou Town,Tongling City,Anhui Province was introduced,by taking the background value of some heavy metalin natural soils of Anhui Province as references and the national environmental quality standard forsoils as the basis.The results showed that,the average content of the five heavy metals in this areawas lower than the national standards for Grade II.But the average contents of Hg,As and Cuexceeded the background value of some heavy mental in natural soils of Anhui Province.Eachpollution index was lower than 1.0 and the comprehensive pollution index was below 0.7,which werein the limits of safety.
引文
[1]李静,谢正苗,徐建明,等.杭州市郊蔬菜地土壤重金属环境质量评价[J].生态环境,2003,12(3):277-280.
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[2]蒋光月,郭熙盛,朱宏斌,等.合肥地区大棚土壤7种重金属相关环境质量评价[J].土壤通报2008,39(5):1230-1232.
[3]宋启道,方佳,王富华,等.广东省主要蔬菜产地土壤中重金属含量调查与评价[J].环境污染与防治2008,30(5):91-93.
[4]李精超,胡小凤,李文一,等.设施蔬菜基地土壤重金属污染分析及防治研究[J].中国农学通报2010,26(18):393-396.
[5]闵利,董道明.铜陵市蔬菜基地重金属污染现状与评价[J].铜陵职业技术学院学报2008(2):68-76.
[6]张义.浅谈土壤样品采集的方法及有关注意事项[J].黑龙江科技信息,2010(7):108.
[7]国家环境保护总局.食用农产品产地环境质量评价标准HJ332-2006[S].北京:中国环境科学出版社,2007.
[8]中国科学院南京土壤研究所.中华人民共和国土壤环境质量标准GB15618-1995[S].上海:上海科技出版社,1978.
[9]中国环境监测总站.中国土壤元素背景值[M].中国环境科学出版社,1990.
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