摘要
本研究测定了南京市江宁区某街道的6家家庭农庄土壤和蔬菜可食部分的Cu、Zn、Hg、As、Cd、Ni、Pb等重金属含量,采用单因子指数评价法和内梅罗综合指数评价法对其重金属含量进行评价.结果表明,Cd元素的土壤单因子评价结果为轻微污染,Cu、Zn、Hg、As、Cr、Ni、Pb元素均在正常范围内,从内梅罗综合污染指数评价来看,有12.5%的土壤属于轻度污染,87.5%的土壤未受到重金属污染,土壤的综合评价属于清洁水平;蔬菜中所测元素Cr、Ni、As、Cd、Hg、Pb的单因子指数评价结果皆在正常范围内,内梅罗综合污染评价指数的最大值皆小于0.7,说明全部蔬菜样品均未受到重金属的污染.
In this study,the contents of Cu,Zn,Hg,as,CD,Ni,Pb and other heavy metals of the edible parts in soils and vegetables of six family farms in a street of Jiangning District,Nanjing were determined.The heavy metal status was evaluated by single factor index evaluation method and Nerome comprehensive index evaluation method.The results showed that the soil single factor evaluation result of Cd element was slight pollution,and Cu,Zn,Hg,As,Cr,Ni,and Pb elements were within the normal range.Through Nemerow pollution index analysis,12.5%of the soil belonged to mild pollution,87.5%of the soil was not contaminated by heavy metals,and the comprehensive evaluation of the soil belonged to the clean level.The results of single factor index evaluation of Cr,Ni,As,Cd,Hg and Pb in vegetables were within the normal range,and the maximum value of comprehensive pollution evaluation index of Nemerow was less than 0.7,indicating that all vegetable samples were not contaminated with heavy metals.
作者
蒋彩云
邵梦佳
郑萍
胡海祥
陈昌云
JIANG Cai-yun;SHAO Meng-jia;ZHENG Ping;HU Hai-xiang;CHEN Chang-yun(Jiangsu Engineering and Research Center of Food Safety,Department of Engineering and Technology,Jiangsu Vocational Institute of Commerce,Nanjing 211168,China;School of Environmental Science,Nanjing Xiaozhuang University,Nanjing 211171,China;Alex Stewart(Agriculture)China LTD,Suzhou 215300,China)
出处
《南京晓庄学院学报》
2022年第6期39-43,共5页
Journal of Nanjing Xiaozhuang University
基金
江苏省高校优秀科技创新团队(2021年)
江苏省高等学校自然科学研究面上项目(21KJB430005)
江苏省高等学校大学生创新创业训练计划项目
江苏经贸职业技术学院领军人才项目.
关键词
重金属
土壤
蔬菜
污染
风险评价
heavy metals
soil
vegetables
contamination
risk evaluation
