徐雄;李春梅;孙静;王海亮;王东红;宋瀚文;王子健;

• 1:中国科学院生态环境研究中心中国科学院饮用水科学与技术重点实验室
• 2:国家海洋局天津海水淡化与综合利用研究所
• 3:中国科学院生态环境研究中心环境水质学国家重点实验室

摘要(Abstract)：

针对我国重点流域水体,包括长江流域、黄河流域、太湖流域、松花江流域、黑龙江流域、东江流域、南水北调中线和东线等,分析了29种农药(18种有机氯农药、6种有机磷农药、3种三嗪类农药、1种酰胺类和1种取代杂环类农药)在流域地表水中浓度,并使用风险商的方法进行了生态风险评价。结果显示,在27个采样点地表水样中一共检出9种农药,包括α-六六六、α-氯丹、γ-氯丹、西玛津、阿特拉津、乙草胺、扑草净、敌敌畏和噁草酮。其中,阿特拉津、乙草胺、扑草净、噁草酮和敌敌畏的检出率分别为100.0%,74.1%,59.3%,37.0%和33.3%;α-六六六、α-氯丹、γ-氯丹和西玛津均只有1~2个采样点检出。阿特拉津在各采样点浓度范围为7.0 ng·L-1~1 289.5 ng·L-1;乙草胺浓度范围为未检出(ND)~579.9 ng·L-1;扑草净浓度范围为ND~104.2 ng·L-1;噁草酮浓度范围为ND~32.6 ng·L-1;敌敌畏的浓度范围为ND~204.5 ng·L-1。研究发现,阿特拉津在太湖流域、黑龙江流域和松花江流域具有潜在生态风险;乙草胺在松花江流域有潜在生态风险;噁草酮在长江流域、太湖流域、松花江流域和黑龙江流域有潜在生态风险;敌敌畏在长江流域、黄河流域和东江流域具有潜在生态风险。上述4种需要重点关注的水体污染物中,仅阿特拉津和敌敌畏被列入地表水环境质量标准(GB3838-2002),但都没有保护水生生物或保护水生态的标准。

关键词(KeyWords)： 农药;地表水;风险评价;重点流域

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51290283);; 中国科学院135项目(YSW2013A02);; 环境保护部《重点流域环境保护监管》项目

作者(Author): 徐雄;李春梅;孙静;王海亮;王东红;宋瀚文;王子健;

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DOI:

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