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Study on Toxic Effects and Biodegradation of Chlorpyrifos, Acetochlor and Dicofol on Skeletonema costatum

Abstract

农业区域大量施用的有机农药中,有相当一部分通过沉降、地表径流等进入河流并最终进入近岸海洋环境,成为陆源输入的主要有机污染物之一,威胁着近岸海域的环境健康和生态安全。三氯杀螨醇、毒死蜱和乙草胺是我国在用的有机氯、有机磷和酰胺类农药的代表性品种,在水环境中频繁检出,本论文以此为目标化合物,以广泛分布的广温广盐性的浮游硅藻——中肋骨条藻(Skeletonemacostatum)为标靶生物,在实验室培养条件下,研究复合污染条件下农药与藻类的相互作用,为评价农药的水环境行为和效应、保护海洋初级生产力的可持续发展提供科学数据。主要内容和结果如下: ⑴毒死蜱、乙草胺和三氯杀螨醇对中肋骨条藻的单一和联合毒性...As one of the main land-source organic pollutants, organic pesticides in aquatic environment through precipitation and runoff threatening the coastal environmental health and ecological safety. Chlorpyrifos, acetochlor and dicofol, are representatives of organophosphorus, acyl amide and organochlorine pesticides respectively, which are widely used in China. They have been frequently found in aquat...学位:理学硕士院系专业:海洋与环境学院环境科学与工程系_环境科学学号:2262006115233

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