IWRA 2023 Online Conference - Emerging Pollutants: Protecting Water Quality for the Health of People and the Environment
Theme 1: Emerging pollutants in aquatic ecosystems
Author(s): Qing Zhang, Key Laboratory of Water and Sediment Sciences of Ministry of Education
Qing Zhang, Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, China
Oral: PDFAbstract
INTRODUCTION
Fipronil was widely used in agricultural and non-agricultural application
Agricultural application: Insect pests control (herbivorous insects and mites, etc.)
Non-agricultural application: Urban pests management (cockroaches, ants, termites, etc.), Veterinary applications (fleas, ticks, etc. on pets)
OBJECTIVES
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To identify the chlorinated disinfection byproducts of fipronil and its degradates in municipal wastewater treatment plants (MWWTPs);
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To investigate the difference of fipronils (fipronil and its transformation products) between municipal wastewater influents and effluents;
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To estimate and discuss the potential persistence and bioaccumulation of novel transformation products.
CONCLUSION
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Two novel chlorinated byproducts (fipronil chloramine and fipronil sulfone chloramine) were identified and detected in MWWTPs in China;
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Fipronil chloramine and fipronil sulfone chloramine were primary transformation products in both influents (96.0%) and effluents (66.8%);
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Both fipronil chloramine and fipronil sulfone chloramine were more persistent and bioaccumulative than fipronil;
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To estimate and discuss the potential persistence and bioaccumulation of novel transformation products.
19 January 2023, 10:50 CET