基于3MRA模型的农村固体废物土壤—水—农作物暴露途径健康风险评价  

Health risk assessment of rural solid waste in soil-water-crop exposure pathway based on 3MRA model

作　　者：何越 唐军[3] 袁野[2] 袁英[3] He Yue;Tang Jun;Yuan Ye;Yuan Ying(Beijing Guozhong Biotechnology Corporation Ltd.,Beijing 102211,China;Heilongjiang Provincial Water Conservancy and Hydropower Survey and Design Institute,Ha Erbin,150080;State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution,Chinese Research Academy of Environmental Sciences,Beijing 100012,China)

机构地区：[1]北京国中生物科技有限公司,北京102211 [2]黑龙江省水利水电勘测设计研究院,黑龙江哈尔滨150080 [3]中国环境科学研究院,北京100012

出　　处：《煤炭与化工》2023年第2期153-160,共8页Coal and Chemical Industry

摘　　要：围绕农药类污染物(甲氧滴滴涕、氯苯等)、六价铬(Cr^(6+))、砷(As)和铅(Pb) 4类典型污染物,利用3MRA风险评估模型,量化了污染物健康风险,评价了原位填埋处置对农村固体废物健康风险保障效果,估算了污染物安全填埋豁免阈值。结果显示,受地理气候、土壤类型和地下水赋存特征等影响,8个自然村健康风险存在一定差异,其中农药类污染物健康风险相对较高。原位填埋处置方式可以较为有效的降低自然村堆存固废的健康风险,但同时也增加了地下水途径的健康风险,建议在我国农村地区设置废旧电池和农药瓶回收设施以降低重金属和农药类污染物的健康风险。Health risk assessment of rural solid waste in soil-water-crop exposure pathway in eight villages around China was carried out based on 3MRA model.And the health risk in waste pile and landfill model and safe concentration in landfill model of chlorobenzene,pentachlorophenol,methoxychlor,2,4-dichlorophenoxyacetic acid,As,Cr^(6+) and Pb were predicted,respectively.The results showed that the health risk between eight villages was different,and landfill was effective to decreasing the health risk of rural solid waste,which resulted in a high safe concentration of the pollutants.Based on these results we suggested that recycling box for waste battery and pesticide bottle should be placed in villages to decrease the health risk of heavy metals and pesticides.

关 键 词：农村固体废物 3MRA 土壤—水—农作物 健康风险评价 填埋场 地下水 

分 类 号：X93[环境科学与工程—安全科学]