Occurrence and ecological risks from fipronil in aquatic environments located within residential landscapes

The Science of the Total Environment
Jun WuP Chris Wilson

Abstract

This study investigated the occurrence of fipronil and its metabolites in aquatic environments in residentially-developed landscapes, including five canals and three retention ponds. Fipronil was detected at four of the sites, with concentrations of 0.5-207.3 ng L(-1). Fipronil sulfone and fipronil sulfide were detected at three sampling sites, with concentrations ranging from 0.46 to 57.75 and 0.40-26.92 ng L(-1), respectively. Multiple risk assessment methods were performed to characterize potential ecological risks, including deterministic screening and probabilistic risk assessment techniques. The deterministic method indicated no risk to certain biotic groups (i.e. aquatic plants, fish, molluscs, and algae-moss-fungi), but did indicate risks to larval insects and crustaceans. Results from the probabilistic risk assessment indicated significant ecological risks (acute and chronic) ranging from 0.75 to 58.9% and 3.9-35.0% when organisms were exposed to the maximum and median concentrations detected, respectively. The potentially affected fraction of species (PAF) likely to be acutely impacted ranged from 4.6 to 8.1% (fipronil), 0.2-1.6% (fipronil sulfone), and 1.9-3.1% (fipronil sulfide) in the ponds with frequent detectable...Continue Reading

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Citations

Mar 5, 2016·Journal of Agricultural and Food Chemistry·Chunmian LinHu Zhang
Jun 13, 2016·The Science of the Total Environment·N MichelR Hanel
Apr 23, 2017·Bioorganic & Medicinal Chemistry Letters·Zhenhong GaoXusheng Shao
Nov 1, 2016·Bulletin of Environmental Contamination and Toxicology·Patrick C WilsonSandra Wilson
Sep 20, 2016·Critical Reviews in Toxicology·Xu WangZonghui Yuan
Jan 31, 2021·Environmental Science and Pollution Research International·Jianjun ChenXianglin Cao
Oct 31, 2020·The Science of the Total Environment·María Rosa Pino-OtínJonatan Val
Nov 24, 2018·The Science of the Total Environment·Paul M BradleyIan R Waite
Feb 28, 2021·Environmental Science and Pollution Research International·Adam Bownik, Aleksandra Szabelak
Jul 25, 2021·Pesticide Biochemistry and Physiology·Chung-Hsin WuSheue-Er Wang

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