吉林省电厂周边农田土壤中多环芳烃含量特征及风险评价  

Content characteristics and risk assessment of PAHs in agricultural soils around power plants in Jilin Province

作　　者：崔政武[1] 王洋[1] 于锐[1] 徐光辉 于泳 CUI Zhengwu;WANG Yang;YU Rui;XU Guanghui;YU Yong(Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun Jilin 130102;College of Resource and Environment,Jilin Agriculture University,Changchun Jilin 130018)

机构地区：[1]中国科学院东北地理与农业生态研究所,吉林长春130102 [2]吉林农业大学资源与环境学院,吉林长春130018

出　　处：《环境污染与防治》2018年第7期806-811,共6页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.41701372);中国科学院东北地理与农业生态研究所"135"规划项目(No.IGA-135-08);中国科学院东北地理与农业生态研究所引进优秀人才科研启动基金资助项目(No.Y6H1211001);吉林省科技创新项目(No.20150623024TC-30)

摘　　要：为探究吉林省电厂周边农田土壤中多环芳烃(PAHs)残留情况,选取了4座燃煤电厂,对其周边农田土壤中3种低环PAHs(萘(NAP)、菲(PHE)、蒽(ANT))和苯并(a)芘(BaP)进行了含量特征、污染水平、潜在风险及来源分析。结果表明:NAP、PHE、ANT和BaP均有检出,3种低环PAHs中ANT占比最高,与国内其他典型污染源周边农田相比,处于较低水平;综合质量基准法和质量标准法两种生态风险评价方法可知,电厂周边农田土壤生态风险水平较低;通过健康风险评价可知,BaP的致癌风险处于可接受范围,NAP、PHE和ANT不存在非致癌风险;电厂周边的农田土壤中PAHs主要来源于化石燃料、木材以及高分子化合物的燃烧。In order to investigate the residues of polycyclic aromatic hydrocarbons(PAHs)in agricultural soils around power plants in Jilin Province,4 coal-fired power plants in Jilin Province were selected.Naphthalene(NAP),phenanthrene(PHE),anthracene(ANT)and benzo(a)pyrene(BaP)were determined and evaluated for content characteristics,pollution level,potential risk and sources analysis.Results showed that NAP,PHE,ANT and BaP were all detected with ANT contribute the most.Compared with the other agricultural soils around typical pollution sources,the PAHs content in Jilin Province was relatively low.Considering the methods of quality guidelines and quality criteria,the ecological risk was low.There was acceptable cancer risk of BaP,while little non-carcer risk of NAP,PHE and ANT by health risk assessment.The PAHs around power plants in Jilin Province mainly came from incineration of fossil fuels,wood and polymer compounds.

关 键 词：电厂 农田土壤 多环芳烃 生态风险 健康风险 

分 类 号：X53[环境科学与工程—环境工程] X825