title: Degradation of rizazole in water-sediment systems.
abstract: This study investigated the degradation of rizazole in water-sediment systems (West Lake system, WL; Beijing-Hangzhou 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 (14.59-15.13 d) were similar to those in the BG water phase (15.90-16.46 d). Within 3-7 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 (T(1/2) = 18.99-19.09 d) compared with the BG sediment phase (T(1/2) = 31.08-33.32 d). Rizazole degradation was slightly faster in the West Lake water-sediment system (WL system) (T(1/2) = 17.11-18.05 d) than in the Beijing-Hangzhou Grand Canal water-sediment system (BG system) (T(1/2) = 20.51-25.02 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.
authors: State Key Lab Breeding Base for Zhejiang Sustainable Plant Pest Control and MOA Key Lab for Pesticide Residue Detection, Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China. cpzhang1215@126.com
authors: Changpeng
authors: C
authors: Zhang
authors: Hua
authors: H
authors: Zhao
authors: Lifeng
authors: L
authors: Ping
authors: Xiaoming
authors: X
authors: Cai
authors: Min
authors: M
authors: Wu
authors: Hongmei
authors: H
authors: He
authors: Chunrong
authors: C
authors: Zhang
authors: Yahong
authors: Y
authors: Zhu
authors: Zhen
authors: Z
authors: Li
mesh_terms: D001393:Azoles; D019015:Geologic Sediments / Q000737:chemistry*; D006207:Half-Life; D007306:Insecticides / Q000737:chemistry*; D011720:Pyrazoles / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D001393:Azoles; D007306:Insecticides; D011720:Pyrazoles; D014874:Water Pollutants, Chemical; C031280:pyrazole