您好,欢迎访问浙江省农业科学院 机构知识库!

Fate of Fenhexamid in Water-Sediment Systems: Degradation Under Aerobic/Anaerobic Conditions and Bioaccumulation by Zebrafish (Danio rerio)

文献类型: 外文期刊

作者: Xu, Zhenlan 1 ; Hu, Xiuqing 1 ; Wu, Min 1 ; Tang, Tao 1 ; Zhang, Changpeng 1 ; He, Hongmei 2 ; Yu, Jianzhong; Lou, Fan 1 ;

作者机构: 1.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, MOA Key Lab Pesticide Residue Detect, Inst Qual & Stand Agroprod, Hangzhou 310021, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, MOA Key Lab Pesticide Residue Detect

关键词: Fenhexamid;Degradation;Bioaccumulation;Water-sediment system

期刊名称:WATER AIR AND SOIL POLLUTION ( 影响因子:2.52; 五年影响因子:2.574 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: Little is known about the environmental behavior of fenhexamid (FEN) in aquatic ecosystems such as degradation and bioaccumulation, in spite of the fact that it is critical for a comprehensive assessment of its ecological risks. This study investigated for the first time the degradation of FEN in water-sediment systems under both aerobic and anaerobic conditions and also bioaccumulation by zebrafish (Danio rerio). Water and sediments from different natural waters including river HR and lake HL were applied to build up water-sediment microcosms in the laboratory. When FEN was introduced into the aqueous phase, it would partition from water to sediment gradually and be decomposed in sediment compartment. The dissipation half-lives of FEN in water were 43.8, 75.9, 31.3, and 37.2 days for HR-aerobic, HR-anaerobic, HL-aerobic, and HL-anaerobic microcosms, respectively. Moreover, FEN degradation rate constants of whole systems varied from 0.0045 to 0.0088 per day and the half-lives were from 78.4 to 155 days. The aerobic circumstances were demonstrated to be favor of FEN degradation. The bioconcentration factor (BCF) was 2.6-3.1 obtained from zebrafish exposure experiments at environmentally relevant concentrations. Clearly, our results indicated that FEN could be accumulated in the deeper layer of sediment owing to the anaerobic condition against FEN degradation, but FEN showed a low potential for bioaccumulation. These may aid in comprehensive understanding the fate and risk of FEN in aquatic environment.

  • 相关文献

[1]The natural fenhexamid-resistant grey mould populations from strawberry in Zhejiang Province are dominated by Botrytis cinerea group S. Yin, Dafang,Wu, Sisi,Yin, Yanni,Ma, Zhonghua,Liu, Na.

[2]Variations in the fate and biological effects of sulfamethoxazole, norfloxacin and doxycycline in different vegetable-soil systems following manure application. Wang, Jianmei,Wu, Huizhen,Qian, Mingrong,Lin, Hui,Sun, Wanchun,Xia, Yun,Ma, Junwei,Fu, Jianrong,Zhang, Zulin.

[3]Litterbag decomposition of residues from Bacillus thuringiensis (Bt) rice hybrids and the parental lines under multiple field conditions. Xiao, Manqiu,Fang, Changming,Dong, Shanshan,Luo, Fuhua,Song, Zhiping,Tang, Xu,Chen, Yi,Yang, Shengmao,Wang, Feng,Su, Jun. 2014

[4]Adsorption Properties and Degradation Dynamics of Endocrine-Disrupting Chemical Levonorgestrel in Soils. Xia, Jinming,Hu, Qiongbo,Tang, Tao,Shi, Tianyu,Li, Deguang,Cao, Yongsong,Tang, Tao.

[5]Residues of chlorantraniliprole in rice field ecosystem. Chai, Wei-Gang,Wu, Yin-Liang,Zhang, Jin-Ming.

[6]Enantioselective degradation of tebuconazole in cabbage, cucumber, and soils. Wang, Xinquan,Zhang, Hu,Wu, Changxing,Wang, Xiangyun,Xu, Hao,Wang, Xiaofu,Li, Zhen,Wang, Xuesong.

[7]Degradation of chondroitin sulfate by the gut microbiota of Chinese individuals. Shang, Qingsen,Li, Guoyun,Yu, Guangli,Shang, Qingsen,Li, Guoyun,Yu, Guangli,Yin, Yeshi,Zhu, Liying,Wang, Xin.

[8]Residue Analysis and Degradation Studies of Fenbuconazole and Myclobutanil in Strawberry by Chiral High-Performance Liquid Chromatography-Tandem Mass Spectrometry. Zhang, Hu,Wang, Xinquan,Qian, Mingrong,Wang, Xiangyun,Xu, Hao,Xu, Mingfei,Wang, Qiang.

[9]Simultaneous determination of florfenicol with its metabolite based on modified quick, easy, cheap, effective, rugged, and safe sample pretreatment and evaluation of their degradation behavior in agricultural soils. Xu, Mingfei,Qian, Mingrong,Zhang, Hu,Wang, Jianmei,Wu, Huizhen,Ma, Junwei.

作者其他论文 更多>>