Nationwide prediction of pesticide residual levels in soil: Implications on the resulting risk and prioritization framework

IF 10.3 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environment International Pub Date : 2025-03-01 DOI:10.1016/j.envint.2025.109355

Bin Zhang , Hongyu Mu , Hua Li , Xianghua Zhang , Guang Yang , Wenxiu Chen , Yan Yan , Wei An , Min Yang

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引用次数: 0

Abstract

Pesticides are widely accumulated in agricultural soils in China under successive applications, causing negative impacts on non-target species and environmental qualities. However, a nationwide overview of the residual levels of pesticides in soil, and the ecological risks to non-target soil species are lacking. In this study, we calculated geographically gridded concentrations of 107 pesticide active ingredients (AIs) in soils in China based on the Computational Pesticide Input (CPI) model and further assessed the ecological risks to soil biota. In the end, we proposed an integrated usage-impact model to identify prioritize control pesticides based on the usage, risk and persistence of pesticides. Pesticide concentrations were calculated in a range from 0.01 mg kg⁻¹ to over 185 mg kg⁻¹. Glyphosate is the most prevalent pesticide that exists in most locations. The ecological risks were mostly assessed as medium risk, with extreme high- and high risk found in 1 % and 21 % of soils. Supervision and management of azoxystrbin, boscalid, butachlor and chlorpyrifos need to be prioritized. The results of this study provide guidance to local governments for the designation more accurate risk mitigation strategies across regions.

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在连续施用农药的情况下，农药在中国农业土壤中广泛累积，对非目标物种和环境质量造成负面影响。然而，目前尚缺乏全国范围内农药在土壤中的残留量及其对土壤非目标物种生态风险的概述。在本研究中，我们基于计算农药投入量（CPI）模型，计算了中国土壤中 107 种农药有效成分（AIs）的地理网格浓度，并进一步评估了其对土壤生物区系的生态风险。最后，我们提出了一个综合使用-影响模型，根据农药的使用、风险和持久性来确定优先控制农药。计算得出的农药浓度范围为 0.01 毫克/千克-1 至超过 185 毫克/千克-1。草甘膦是大多数地方最常见的农药。生态风险大多被评估为中等风险，极高和高风险分别出现在 1 % 和 21 % 的土壤中。唑啉草酯、啶虫脒、丁草胺和毒死蜱的监督管理需要优先进行。这项研究的结果为地方政府制定更准确的跨区域风险缓解战略提供了指导。

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来源期刊

Environment International 环境科学-环境科学

CiteScore

21.90

自引率

3.40%

发文量

734

审稿时长

2.8 months

期刊介绍： Environmental Health publishes manuscripts focusing on critical aspects of environmental and occupational medicine, including studies in toxicology and epidemiology, to illuminate the human health implications of exposure to environmental hazards. The journal adopts an open-access model and practices open peer review. It caters to scientists and practitioners across all environmental science domains, directly or indirectly impacting human health and well-being. With a commitment to enhancing the prevention of environmentally-related health risks, Environmental Health serves as a public health journal for the community and scientists engaged in matters of public health significance concerning the environment.