Gaowei Tan , Darrell W.S. Tang , Vera Silva , Hongyu Mu , Shijie Qin , Osman Rima , Violette Geissen , Xiaomei Yang
{"title":"多种污染物的共存:农业土壤中的解缠吸附行为","authors":"Gaowei Tan , Darrell W.S. Tang , Vera Silva , Hongyu Mu , Shijie Qin , Osman Rima , Violette Geissen , Xiaomei Yang","doi":"10.1016/j.envpol.2025.126118","DOIUrl":null,"url":null,"abstract":"<div><div>The co-occurrence of pesticides, pharmaceuticals, and MPs has resulted in combined toxicity and high risks to ecosystems and human health. However, understanding on the interactions among co-occurring pollutants in soils remains limited. This study focused on adsorption behaviour of a pesticide mixture (chlorpyrifos (CPF), pendimethalin (PDM) and pyraclostrobin (PCS)) in three soils (sandy soil (S1), loamy soil (S2), and silt soil (S3)) to examine the absorption behaviour of pesticides in the presence of the pharmaceutical compound albendazole (ALB) and starch-based microplastics (MPs). The results showed that ALB significantly decreased (<em>p</em> < 0.05) the adsorption of CPF, PDM, and PCS by 29 %–41 % in S1. The adsorption of CPF (+20 %) and PCS (+101 %) in S2 were significantly enhanced but PDM (−22 %) adsorption was inhibited by ALB. ALB also significantly (<em>p</em> < 0.05) promoted CPF and PCS adsorption in S3 by 39 % and 120 %, respectively, but did not change PDM adsorption. In soil-MP matrices, ALB significantly reduced the adsorption of CPF (−25 %), PDM (−26 %), and PCS (−21 %) in the S1-MP matrix, but no significant change in the S2 and S3-MP matrices was observed. Moreover, MPs significantly (<em>p</em> < 0.05) increased the adsorption of the pesticide mixture by 120–730 %, but reduced ALB adsorption by 11–24 % in soils. Further, regardless of ALB presence, correlation analysis suggested that <em>K</em><sub><em>d</em></sub> of pesticides showed positive correlations (<em>p</em> < 0.01) to soil organic matter, specific surface area, and clay content in soil matrices without MP-contamination, while no significant positive correlation between <em>K</em><sub><em>d</em></sub> of pesticides and soil properties was observed in soil-MPs matrices. This study indicates that co-occurring pollutants could alter the adsorption behaviour of pesticides in soil and thereby affect their bioavailability and mobility in the soil ecosystem. Further study is urgently needed to assess the ecotoxicity of co-occurring multi-contaminants, as well as their potential transport to other environmental compartments.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"373 ","pages":"Article 126118"},"PeriodicalIF":7.6000,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Co-occurrence of multiple contaminants: Unentangling adsorption behaviour in agricultural soils\",\"authors\":\"Gaowei Tan , Darrell W.S. Tang , Vera Silva , Hongyu Mu , Shijie Qin , Osman Rima , Violette Geissen , Xiaomei Yang\",\"doi\":\"10.1016/j.envpol.2025.126118\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The co-occurrence of pesticides, pharmaceuticals, and MPs has resulted in combined toxicity and high risks to ecosystems and human health. However, understanding on the interactions among co-occurring pollutants in soils remains limited. This study focused on adsorption behaviour of a pesticide mixture (chlorpyrifos (CPF), pendimethalin (PDM) and pyraclostrobin (PCS)) in three soils (sandy soil (S1), loamy soil (S2), and silt soil (S3)) to examine the absorption behaviour of pesticides in the presence of the pharmaceutical compound albendazole (ALB) and starch-based microplastics (MPs). The results showed that ALB significantly decreased (<em>p</em> < 0.05) the adsorption of CPF, PDM, and PCS by 29 %–41 % in S1. The adsorption of CPF (+20 %) and PCS (+101 %) in S2 were significantly enhanced but PDM (−22 %) adsorption was inhibited by ALB. ALB also significantly (<em>p</em> < 0.05) promoted CPF and PCS adsorption in S3 by 39 % and 120 %, respectively, but did not change PDM adsorption. In soil-MP matrices, ALB significantly reduced the adsorption of CPF (−25 %), PDM (−26 %), and PCS (−21 %) in the S1-MP matrix, but no significant change in the S2 and S3-MP matrices was observed. Moreover, MPs significantly (<em>p</em> < 0.05) increased the adsorption of the pesticide mixture by 120–730 %, but reduced ALB adsorption by 11–24 % in soils. Further, regardless of ALB presence, correlation analysis suggested that <em>K</em><sub><em>d</em></sub> of pesticides showed positive correlations (<em>p</em> < 0.01) to soil organic matter, specific surface area, and clay content in soil matrices without MP-contamination, while no significant positive correlation between <em>K</em><sub><em>d</em></sub> of pesticides and soil properties was observed in soil-MPs matrices. This study indicates that co-occurring pollutants could alter the adsorption behaviour of pesticides in soil and thereby affect their bioavailability and mobility in the soil ecosystem. Further study is urgently needed to assess the ecotoxicity of co-occurring multi-contaminants, as well as their potential transport to other environmental compartments.</div></div>\",\"PeriodicalId\":311,\"journal\":{\"name\":\"Environmental Pollution\",\"volume\":\"373 \",\"pages\":\"Article 126118\"},\"PeriodicalIF\":7.6000,\"publicationDate\":\"2025-03-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Pollution\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0269749125004919\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Pollution","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0269749125004919","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Co-occurrence of multiple contaminants: Unentangling adsorption behaviour in agricultural soils
The co-occurrence of pesticides, pharmaceuticals, and MPs has resulted in combined toxicity and high risks to ecosystems and human health. However, understanding on the interactions among co-occurring pollutants in soils remains limited. This study focused on adsorption behaviour of a pesticide mixture (chlorpyrifos (CPF), pendimethalin (PDM) and pyraclostrobin (PCS)) in three soils (sandy soil (S1), loamy soil (S2), and silt soil (S3)) to examine the absorption behaviour of pesticides in the presence of the pharmaceutical compound albendazole (ALB) and starch-based microplastics (MPs). The results showed that ALB significantly decreased (p < 0.05) the adsorption of CPF, PDM, and PCS by 29 %–41 % in S1. The adsorption of CPF (+20 %) and PCS (+101 %) in S2 were significantly enhanced but PDM (−22 %) adsorption was inhibited by ALB. ALB also significantly (p < 0.05) promoted CPF and PCS adsorption in S3 by 39 % and 120 %, respectively, but did not change PDM adsorption. In soil-MP matrices, ALB significantly reduced the adsorption of CPF (−25 %), PDM (−26 %), and PCS (−21 %) in the S1-MP matrix, but no significant change in the S2 and S3-MP matrices was observed. Moreover, MPs significantly (p < 0.05) increased the adsorption of the pesticide mixture by 120–730 %, but reduced ALB adsorption by 11–24 % in soils. Further, regardless of ALB presence, correlation analysis suggested that Kd of pesticides showed positive correlations (p < 0.01) to soil organic matter, specific surface area, and clay content in soil matrices without MP-contamination, while no significant positive correlation between Kd of pesticides and soil properties was observed in soil-MPs matrices. This study indicates that co-occurring pollutants could alter the adsorption behaviour of pesticides in soil and thereby affect their bioavailability and mobility in the soil ecosystem. Further study is urgently needed to assess the ecotoxicity of co-occurring multi-contaminants, as well as their potential transport to other environmental compartments.
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.