场地风险评价暴露途径与风险可接受研究  

Research of Exposure Pathways and Risk Acceptability of Site Risk Assessment

作　　者：王磊 耿宝 王娟[2] 刘冰 魏颖[3] 

机构地区：[1]青岛中油华东院安全环保有限公司 [2]中国石油安全环保技术研究院 [3]兰州大学大气科学学院环境质量评价研究中心

出　　处：《油气田环境保护》2014年第5期27-30,83,共4页Environmental Protection of Oil & Gas Fields

摘　　要：最新发布的《污染场地风险评估技术导则》从暴露途径入手,针对污染物对人体健康的致癌和非致癌危害进行风险评估。文章根据污染物的物化性质对《污染场地风险评估技术导则》中的9种暴露途径进行了归纳,并以苯为例,利用导则附录G表中的推荐值对暴露量及其对应的致癌风险、危害商进行了计算,通过苯的致癌风险和危害商可接受水平反算出苯的土壤质量浓度,并与现行的各类土壤质量标准进行比较,确定HJ350—2007《展览会用地土壤环境质量评价标准(暂行)》的A级标准可以作为评价土壤中苯的致癌风险和危害商是否可接受的标准值。From the perspective of the exposurepathways,in view of the cancer and noncancerhazards on human health by pollutants,the latest released standard of Technical Guidelines for Risk Assessment of Contaminated Sites'has made a risk assessment.9 exposure pathways referred in Guidelines were summarized in this article according to thephysical and chemical properties of pollutants.As an example,the benzenes exposed quantity according to the recommended value in Guidelines and its corresponding carcinogenic riskhazard quotient were calculated.The concentration of benzene in soil could be calculated depending on carcinogenic risk and the acceptable value of hazard quotient.The results were compared with the values in soil quality standard.The conclusion demonstrated that the grade a standard value in 'Standard for Soil Quality Assessment for Exhibition Sites'(HJ 350—2007)could be the standard value for the assessment of carcinogenic risk and hazard quotient in soil.

关 键 词：场地风险评价 苯 暴露途径 致癌风险 质量标准 

分 类 号：X820.4[环境科学与工程—环境工程]