典型POPs的土壤污染机理与作物累积规律
基本信息
结项摘要
以典型城郊土壤-作物(蔬菜)系统为研究对象，阐明该系统中典型POPs(国内问题突出的DDT及其降解产物DDE和DDD)污染的成因、发生机制与农产品污染的相关关系；阐明土壤中老化残留态POPs的生物有效性、释放的环境条件与风险，根际多过程协同活化与钝化POPs活性的生物化学过程与机理；富铁红壤在还原条件下催化DDT类污染物脱氯降解机制及农艺调控途径；POPs的作物吸收与累积机理，POPs在可食部分累积速率与污染物结构特征及土壤理化性质之间的量化关系。本项目研究将为综合解析城郊土壤和农产品POPs污染机理与农产品质量安全及健康风险评价提供理论依据和技术支撑，对从源头入手实现农业清洁生产与生态环境保护有着双重重要意义。
项目摘要
项目成果
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数据更新时间：2023-05-31
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