新罗区科桃村食用笋原产地土壤重金属污染现状  

Heavy Metal in Soil from a Certain Producing Area of Bamboo Shoots in Ketao Village of Xinluo District and Assessment of Present Pollution Situation

作　　者：钟彬扬[1] 梁玉兰[1] 杨彩萍 刘锡尧 李秀青 ZHONG Binyang;LIANG Yulan;YANG Caiping;LIU Xiyao;LI Xiuqing(Minxi Vocational&Technical College,Fujian Longyan,Fujian 364021,China;Fujian Longyan Institute of Quality Inspection for Products,Longyan,Fujian 364005,China)

机构地区：[1]闽西职业技术学院,福建龙岩364021 [2]龙岩市产品质量检验所,福建龙岩364005

出　　处：《龙岩学院学报》2020年第2期93-98,共6页Journal of Longyan University

基　　金：龙岩市科技计划项目(2017LY61)。

摘　　要：在新罗区科桃村食用笋原产地选取111个采样点,竹笋根系采集相应土壤样品,测定汞(Hg)、砷(As)、铅(Pb)含量。采用单项污染指数法和综合污染指数法进行土壤重金属污染评价,采用潜在生态危害指数法评估潜在生态风险。结果表明:Hg、As、Pb含量平均值分别为0.022、5.8、11.4 mg·kg^-1,均未超标。土壤重金属污染评价结果表明,本研究区域土壤重金属污染水平较低、相对安全,土壤尚清洁。潜在生态风险评估结果表明,本研究区域土壤重金属潜在生态危害程度较低,均为轻微生态风险,3种重金属单项潜在生态危害系数:Hg>As>Pb。In order to study the current status of heavy metal pollution in soil from a certain producing area of bamboo shoots in Ketao village of Xinluo district,111 sampling sites were selected from producing area of bamboo shoots,and corresponding soil samples were collected to determine mercury(Hg),arsenic(As)and lead(Pb)concentration.Single pollution index and total pollution index were used to assess soil heavy metal pollution,and potential ecological risk index was used to evaluate the potential ecological risk.The results showed that the average Hg,As and Pb concentration were 0.022,5.8 and 11.4 mg·kg^-1,respectively,showing not exceeding related evaluation standards.The results of soil heavy metal pollution assessment showed little pollution in study area,so it was relatively safe,and the soil was still clean.The results of potential ecological risk evaluation showed that less potential ecological hazard of soil heavy metals in study area(just slight ecological risks),and the potential ecological risk index of three heavy metals were Hg>As>Pb.

关 键 词：新罗区 竹笋 土壤 重金属 污染评价 潜在生态风险 

分 类 号：X5759.8[环境科学与工程—环境工程]