Degradation of rizazole in water-sediment systems

文献类型： 外文期刊

第一作者： Zhang, Changpeng

作者： Zhang, Changpeng;Zhao, Hua;Ping, Lifeng;Cai, Xiaoming;Wu, Min;He, Hongmei;Zhang, Chunrong;Zhu, Yahong;Li, Zhen

作者机构：

关键词： Aerobic conditions;anaerobic conditions;half-life;West Lake system;Beijing-Hangzhou Grand Canal system;N-substituted phenyl pyrazole insecticide

期刊名称：JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES （ 影响因子：1.99； 五年影响因子：2.116 ）

ISSN： 0360-1234

年卷期： 2013 年 48 卷 5 期

页码：

收录情况： SCI

摘要： This study investigated the degradation of rizazole in water-sediment systems (West Lake system, WL; BeijingHangzhou Grand Canal system, BG) with two different types of sediments under aerobic and anaerobic conditions. The half-lives of rizazole in the WL water phase (14.5915.13 d) were similar to those in the BG water phase (15.9016.46 d). Within 37 d, the rizazole concentration in the sediments reached the maximum values, i.e., equilibrium. Rizazole dissipation was faster in the WL sediment phase with higher organic matter content (T1/2 = 18.9919.09 d) compared with the BG sediment phase (T1/2 = 31.0833.32 d). Rizazole degradation was slightly faster in the West Lake water-sediment system (WL system) (T1/2 = 17.1118.05 d) than in the BeijingHangzhou Grand Canal watersediment system (BG system) (T1/2 = 20.5125.02 d). The aerobic degradation of rizazole was similar to its anaerobic degradation in the water-sediment system. The findings are useful to understand the behavior of pesticide in environment.

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