Evidence from In Situ Bioassays and Suspect Analysis Revealed the Region-Specific Aquatic Risk across Socioeconomic Gradients in China
作者机构：Guangdong Provincial Key Laboratory of Environmental Pollution and HealthCollege of Environment and ClimateJinan UniversityGuangzhou 510632China Guangdong Provincial Development and Reform InstituteGuangzhou 510045China
出 版 物：《Environment & Health》 (环境与健康（英文）)
年 卷 期：2024年第2卷第11期
页 面：827-837页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
基 金：supported by Guangdong Provincial Department of Science and Technology(2023A1515011396) the National Natural Science Foundation of China(42377270,42277265) the Innovative Research Team of Department of Education of Guangdong Province(2020KCXTD005)
主 题：mixture risk in situ bioassays weight of evidence ecological risk assessment suspect analysis
摘 要：Various contaminants are present in aquatic environment and pose potential threats to pelagic and benthic organisms,calling for effective risk *** risk assessments based on target analysis are useful when the principal contaminants responsible for ecological risk are known;however,these approaches become challenging when dealing with chemical *** addition,the compositions of chemical mixtures often differ in regions with different levels of socioeconomic develop-ment,requiring risk assessment methods that are applicable under different pollution ***,in situ bioassays were conducted with two native species,Chinese rare minnows(Gobiocypris rarus)and Asian clams(Corbicula fluminea),in economically developed watersheds in China(Pearl River Basin(PRB)and Taihu Lake Basin(THB))and agriculture-dominated Poyang Lake Basin(PYB).Significant lethal and sublethal effects(e.g.,neurotoxicity,reproductive toxicity,and metabolic and oxidative stress)were observed in fish and clams irrespective of economic ***,ecological effects differed significantly between water and sediment phases within the same ***(98 contaminants)and suspect screening(942 contaminants)revealed regional-specific *** risk assessments using a weight of evidence approach demonstrated that both water and sediment in the PRB were at moderate to high risk,as was the sediment in the less developed ***,the characteristics of mixture pollution varied greatly among *** screening identified many pollutants that are not regularly monitored but are present at high environmental concentrations and are linked to local industrial *** distinct mixture risk characteristics across different basins suggest that mitigating aquatic pollution requires region-specific management measures.
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