A Quantitative Environmental Risk Assessment for Microplastics in Sewage Sludge Applied to Land.

IF 11.3 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

环境科学与技术 Pub Date : 2025-10-20 DOI:10.1021/acs.est.5c08026

Paul Boisseaux,Marie Laure Delignette-Muller,Tamara Galloway

{"title":"A Quantitative Environmental Risk Assessment for Microplastics in Sewage Sludge Applied to Land.","authors":"Paul Boisseaux,Marie Laure Delignette-Muller,Tamara Galloway","doi":"10.1021/acs.est.5c08026","DOIUrl":null,"url":null,"abstract":"The application of sewage sludge to land delivers high levels of microplastics (MPs), contributing to soil contamination and chronic effects on soil biota. Despite this, the quantitative chronic risk assessment of MPs in sludge-amended soils (SAS) to soil biota has not been thoroughly addressed, and none has been done directly on sludge samples. Here, we combined environmental exposure and species sensitivity distributions, built on published data, with two-dimensional Monte Carlo simulations to characterize the risk from MPs in sludge samples and in SAS, testing worst-case and realistic case scenarios of sludge behavior in soil. Contamination with MPs frequently exceeded the concentration likely to affect more than 5% of the species. Risk characterization showed that the worst-case MP scenario affects 39% of species, while the realistic scenario affects 15-18% of soil species, implying that the current state of sludge application fails to protect 95% of soil biota. The percentage of species affected by MPs approximately doubled in SAS. Our conservative results suggest that regulatory limits on MPs in sludge being applied to land should be urgently considered.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"15 1","pages":""},"PeriodicalIF":11.3000,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"环境科学与技术","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.est.5c08026","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}

引用次数: 0

Abstract

The application of sewage sludge to land delivers high levels of microplastics (MPs), contributing to soil contamination and chronic effects on soil biota. Despite this, the quantitative chronic risk assessment of MPs in sludge-amended soils (SAS) to soil biota has not been thoroughly addressed, and none has been done directly on sludge samples. Here, we combined environmental exposure and species sensitivity distributions, built on published data, with two-dimensional Monte Carlo simulations to characterize the risk from MPs in sludge samples and in SAS, testing worst-case and realistic case scenarios of sludge behavior in soil. Contamination with MPs frequently exceeded the concentration likely to affect more than 5% of the species. Risk characterization showed that the worst-case MP scenario affects 39% of species, while the realistic scenario affects 15-18% of soil species, implying that the current state of sludge application fails to protect 95% of soil biota. The percentage of species affected by MPs approximately doubled in SAS. Our conservative results suggest that regulatory limits on MPs in sludge being applied to land should be urgently considered.

查看原文本刊更多论文

土地污泥中微塑料的定量环境风险评价。

污水污泥在土地上的应用产生了高浓度的微塑料（MPs），导致土壤污染和对土壤生物群的慢性影响。尽管如此，污泥改性土壤（SAS）中MPs对土壤生物群的定量慢性风险评估尚未得到彻底解决，也没有直接对污泥样品进行过评估。在这里，我们结合环境暴露和物种敏感性分布，建立在公开数据的基础上，通过二维蒙特卡罗模拟来表征污泥样本和SAS中MPs的风险，测试污泥在土壤中行为的最坏情况和现实情况。MPs污染经常超过可能影响5%以上物种的浓度。风险表征表明，最坏的MP情景影响39%的物种，而现实情景影响15-18%的土壤物种，这意味着目前的污泥应用状态未能保护95%的土壤生物群。在北欧，受MPs影响的物种百分比大约翻了一番。我们保守的结果表明，应该紧急考虑对应用于土地的污泥中MPs的监管限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

环境科学与技术环境科学-工程：环境

CiteScore

17.50

自引率

9.60%

发文量

12359

审稿时长

2.8 months

期刊介绍： Environmental Science & Technology (ES&T) is a co-sponsored academic and technical magazine by the Hubei Provincial Environmental Protection Bureau and the Hubei Provincial Academy of Environmental Sciences. Environmental Science & Technology (ES&T) holds the status of Chinese core journals, scientific papers source journals of China, Chinese Science Citation Database source journals, and Chinese Academic Journal Comprehensive Evaluation Database source journals. This publication focuses on the academic field of environmental protection, featuring articles related to environmental protection and technical advancements.