文献类型：期刊文献

中文题名：基于IEUBK模型的公路环境多介质铅暴露风险评价

英文题名：MULTIMEDIA EXPOSURE RISK ASSESSMENT FOR LEAD IN THE ROADSIDE ENVIRONMENT BASED ON IEUBK MODEL

作者：王晓钰[1,2];李飞[2]

第一作者：王晓钰

机构：[1]新乡学院化学与化工学院,河南新乡453003;[2]湖南大学环境科学与工程学院,长沙410082

第一机构：新乡学院化学化工学院

年份：2014

卷号：0

期号：5

起止页码：95-100

中文期刊名：环境工程

外文期刊名：Environmental Engineering

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

语种：中文

中文关键词：公路多介质环境;重金属;风险评价;IEUBK模型

外文关键词：roadside multimedia environment;;heavy metal;;risk assessment;;IEUBK

摘要：基于对案例区域的采样分析和相关参数资料的搜集,采用国际认可的综合暴露吸收生物动力学模型(IEUBK)对案例公路环境多介质铅暴露风险进行了评价研究。结果表明:以GB 15618—1995《土壤环境质量标准》为参比,研究区域土壤铅含量低于GB 15618—1995二级标准限值;路基西侧各距离采样点中的铅含量均高于路基东侧对应采样点,这很可能与该区域的常年主导风向有关;路基两侧土壤铅含量分布均基本呈现先升高后降低的趋势,距路基150m后的铅含量趋于相对稳定;基于IEUBK计算出案例区域多介质环境铅暴露对0~84个月的儿童受体的血铅贡献的几何均值为15.03~15.14μg/dL,而各采样点儿童血铅超过限值10μg/dL的概率均大于80%,故该区域儿童受体已存在较高风险。
In order to study the potential risk of lead( Pb) from the roadside environment to targeted receptor,the integrated exposure uptake biokinetic model( IEUBK) was introduced and a case study was performed based on sampling and detection in field scale and corresponding parameter data gathering. The results showed that Pb content in the case soil was at lower enrichment level compared with the China National Soil Environment Quality Criterion( GB 15618—1995). And the Pb contents in the west of the road were generally higher than that in east,which perhaps had a close relationship to the regionally dominant wind direction throughout the year. Besides,Pb contents were in the up-down distribution trend with increasing distance to the road,while after 150 m from the road,the variation of Pb contents was becoming relatively stable. Finally, based on the IEUBK,the risk assessment with the multimedia exposure data was carried out and the results showed the simulative geometric means of children's blood lead( 0 ~ 84 month) were in range of 15. 03 ~ 15. 14 μg / dL. And the probabilities of children's blood lead in the sampling sites exceed limit value( 10 μg / dL) were not less than 80%,which indicated high risk level in the case region.