摘要
以华东地区某生活垃圾焚烧处理厂为监测对象,研究其主导上、下风向住宅小区内的土壤和室内积尘中二噁英的浓度水平和分布特征。研究结果表明:4个住宅小区内二噁英主要来源于该生活垃圾焚烧企业的影响。室内积尘中二噁英的毒性当量略高于土壤中二噁英的毒性当量。成人和儿童经口摄入室内积尘的日均暴露量明显高于经口摄入土壤的日均暴露量,说明室内积尘对人体的暴露风险大于土壤暴露风险。由于儿童经口摄入土壤和室内积尘的日均暴露量是成人的12倍,因此儿童经口摄入暴露风险应该得到更多的重视。
A municipal solid waste incineration was studied.The concentration level and distribution of PCDD/Fs in soil,indoor dust were studied.The results showed that the PCDD/Fs mainly came from the municipal solid waste incinerator in this study area.The concentration of PCDD/Fs in indoor dust was slightly higher than that in soil.The daily exposure of adults and children to indoor dust was significantly higher than that of soil.The results showed that the exposure risk to the human body of indoor dust was greater than the soil.The average daily exposure of children through oral ingestion was 12 times that of adults,so children’s exposure should be paid more attention.
作者
张宗祥
毛慧
吴晶
于建飞
ZHANG Zong-xiang;MAO Hui;WU Jing;YU Jian-fei(Jiangsu Taizhou Environmental Monitoring Center,Taizhou 225300,China;Jiangsu Province Ecology and Environment Protection Key Laboratory of Soil Organics Monitoring,Taizhou 225300,China)
出处
《环境科技》
2022年第5期54-57,共4页
Environmental Science and Technology
基金
农业农村部“十四五”国家科技支撑技术重点课题(NYKJ9204)。
关键词
土壤
室内积尘
二噁英类
暴露途径
风险评估
Soil
Indoor dust
Polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs)
Exposure route
Risk assessment
