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Study on Residues and Safety of Organophosphorus and Polyester Pesticides in Shaanxi Agricultural Soil

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Abstract

The irrational use of pesticides has raised a negative influence on the environment and food security. Therefore, it is imperative to comprehend the current status of pesticide residues in the soil for agricultural production and their impact on the ecological environment. The effect of the main pesticides accounted for soil contamination (such as chlorpyrifos, deltamethrin, cypermethrin, and lambda-cyhalothrin) were studied in 115 representative soil samples (collected from a greenhouse and agricultural field, in Shaanxi, China). The avoidance test of earthworms to soil with studied pesticide was studied. Among them, chlorpyrifos has the highest residue concentration in the soil. Distinct geographical areas and types of land usage had different pesticide distributions. The detection rates of deltamethrin in Guanzhong were higher in greenhouses than in fields. The results manifested that the detection rates of chlorpyrifos and cypermethrin in greenhouses were higher in northern and southern Shaanxi. In addition, the concentration levels of pesticides in different soils are as follows: field soil > orchard soil > vegetable soil, and the concentration of chlorpyrifos was much higher in comparison to other pesticides. The results of the earthworm toxicity experiments showed that the soil treatments with the addition of pesticides caused toxic reactions in earthworms as compared to control treatments (without pesticide application). The earthworms exposed to toxic conditions showed morphological changes in their epidermis. Significant avoidance behavior was observed by earthworms, with avoidance rates exceeding 55%. The research results revealed the residual amounts of organophosphorus and pyrethroid pesticides in Shaanxi Province and their effects on the morphology and behavior of soil animals, providing a reference for pesticide application and control in the study area.

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Data Availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

The study was partially supported by the Key Research and Development Program in Shaanxi Province (2023-YBNY-237) and the Science and Technology Program Special Project of Shaanxi Provincial Department of Agriculture (2020NCNY0016).

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Contributions

All authors contributed to the study’s conception and design. Li Hua, Huining Wang, and Danyang Zhao performed material preparation, data collection, and analysis. The first draft of the manuscript was written by Huining Wang, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Li Hua.

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Ethical Approval

No approval of research ethics committees was required to accomplish the goals of this study because experimental work was conducted with an unregulated invertebrate species.

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The authors declare no competing interests.

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Novelty or Significance

This study bridged the gap between the residues and safety of organophosphorus and polyester pesticides in agricultural soil in Shaanxi Province and provided a reference for appropriate pesticide management.

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Hua, L., Wang, H., Zhao, D. et al. Study on Residues and Safety of Organophosphorus and Polyester Pesticides in Shaanxi Agricultural Soil. Water Air Soil Pollut 234, 245 (2023). https://doi.org/10.1007/s11270-023-06266-z

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  • DOI: https://doi.org/10.1007/s11270-023-06266-z

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