Occurrence, Sources and Risk Assessment of Pyrethroid Insecticides in Surface Water and Tap Water from Taihu Lake, China

作     者：Wang, Rui Zhang, Shengwei Xiao, Kaiyan Cai, Minghong Liu, Hongling 

作者机构：Ministry of Natural Resources Key Laboratory for Polar Science Polar Research Institute of China 451 Jinqiao Road Shanghai 200136 China School of Oceanography Shanghai Jiao Tong University 1954 Huashan Road Shanghai 200030 China Antarctic Great Wall Ecology National Observation and Research Station Polar Research Institute of China 1000 Xuelong Road Shanghai 201209 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing100875 China Department of Municipal and Environmental Engineering School of Civil Engineering Beijing Jiaotong University Beijing100044 China 

出 版 物：《SSRN》 

年 卷 期：2022年

核心收录：

主　　题：Risk assessment 

摘      要：Pyrethroid insecticides are among the most widely used insecticides worldwide and pose a serious threat to human health and the environment. In this study, we applied high-throughput organic analysis testing combined with high-volume solid-phase extraction (Hi-throat/Hi-volume SPE) to investigate the occurrence of 11 pyrethroid insecticides in lake water (n=37), tributary river water (n=15), and tap water (n=6) in the Taihu Lake Basin. Permethrin was determined to be the major contributing pyrethroid insecticide (100%). The concentrations of pyrethroid insecticides from different areas of the lake were as follows: southern (S023–S26, mean 2,331 ng/L) eastern (S01–S04 and S32–S37, mean 1,664 ng/L) western (S17–S22 and S28–S31, mean 1,459 ng/L) northern (S05–S16, mean 821.1 ng/L). The results of the principal component analysis with multiple linear regression indicated that landscape maintenance, agricultural cultivation, and livestock breeding were the main sources of pyrethroid insecticides in the Taihu Lake surface water. Runoff input plays an important role in the accumulation of pyrethroid insecticides in Taihu Lake, and surrounding rivers contribute 2,292 kg of pyrethroid insecticides to Taihu Lake annually. The risk assessment results indicate that pyrethroid insecticides present a high risk to both the ecological environment and surrounding human populations and must be taken seriously. Further, the use of pyrethroid insecticides in the Yangtze River Delta region needs to be controlled. This is the first study in China to report the residue levels in water sources and tap water. © 2022, The Authors. All rights reserved.