Spatiotemporal distribution and fate of typical pesticides in the Bohai Sea and surrounding rivers, China

IF 7.6 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Environmental Pollution Pub Date : 2025-02-26 DOI:10.1016/j.envpol.2025.125934

Jing Zhao, Yufei Dai, Limin Wang, Dongliang Lu, Xiaoru Cui, Li Lu, Jingyu Zhang, Keqiang Li, Xiulin Wang

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Abstract

Pesticide leakage has lasting and profound effects on the stability and health of marine ecosystems. To explore the occurrence, distribution, and fate of typical pesticides in marine environments, three sampling campaigns were conducted in the Bohai Sea and surrounding rivers. Atrazine was the most pronounced pesticide, with a high concentration and detection frequency in both seawater and sediment. The presence of typical organophosphorus pesticides (OPs) was significantly lower than historical levels. Pesticide concentrations decreased from inshore to offshore. Furthermore, the spatiotemporal distribution characteristics of the pesticides highlighted the agricultural patterns and differences in pesticide use. Environmental factors and physicochemical properties jointly determined the behaviors and fates of pesticides in the marine environment. Sediment served as both a sink for widely used atrazine and a source of restricted OPs. Although some pesticides have been restricted or banned, such as dimethoate and chlorpyrifos, the risks caused by their long-term use and environmental accumulation cannot be ignored and the normalized monitoring of typical pesticides is necessary in the marine environment.

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来源期刊

Environmental Pollution 环境科学-环境科学

CiteScore

16.00

自引率

6.70%

发文量

2082

审稿时长

2.9 months

期刊介绍： Environmental Pollution is an international peer-reviewed journal that publishes high-quality research papers and review articles covering all aspects of environmental pollution and its impacts on ecosystems and human health. Subject areas include, but are not limited to: • Sources and occurrences of pollutants that are clearly defined and measured in environmental compartments, food and food-related items, and human bodies; • Interlinks between contaminant exposure and biological, ecological, and human health effects, including those of climate change; • Contaminants of emerging concerns (including but not limited to antibiotic resistant microorganisms or genes, microplastics/nanoplastics, electronic wastes, light, and noise) and/or their biological, ecological, or human health effects; • Laboratory and field studies on the remediation/mitigation of environmental pollution via new techniques and with clear links to biological, ecological, or human health effects; • Modeling of pollution processes, patterns, or trends that is of clear environmental and/or human health interest; • New techniques that measure and examine environmental occurrences, transport, behavior, and effects of pollutants within the environment or the laboratory, provided that they can be clearly used to address problems within regional or global environmental compartments.