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揭示PFAS trofhic放大的大小和驱动因素:一个元分析

Lorenzo Ricolfi¹, Yefeng Yang^2,3, Patrice Pottier^4,5

¹Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales Sydney, Sydney, NSW, Australia. l.ricolfi@unsw.edu.au.

Nature communications

|November 28, 2025

概括

和多基基物质 (PFAS) 在食物网中放大,在每个级别的度增加了一倍. 这项全球分析强调F-53B是一种高风险化合物,敦促更严格的PFAS法规来保护生态系统和健康.

科学领域:

环境化学环境化学
生态毒理学生态毒理学
全球生态学全球生态学

背景情况:

和多醇基物质 (PFAS) 是持久性,生物积累性和有毒的化学物质,构成全球环境威胁.
了解PFAS生物放大对于评估生态和人类健康风险至关重要.

研究的目的:

在水生和陆生食物网中对PFAS热带放大因子 (TMFs) 进行全球元分析.
为了确定PFAS生物放大变化的关键驱动因素.
确定PFAS作为持久的热带乘数,并为风险评估提供一个框架.

主要方法:

来自64项研究的119个食物网的全球元分析.
对72种不同的PFAS化合物的1009种热带放大因子 (TMF) 的分析.
统计建模以解释TMF的变化,并确定关键驱动因素.

主要成果:

随着热带水平的增加,PFAS度显著增加,平均TMF为2.00,表明每热带水平的度是双倍的.
在不同的PFAS化合物中,TMF存在相当大的差异;工业化学品F-53B显示了最高的放大值 (TMF=3.07).
研究中的方法差异是TMF变化的主要来源,模型解释了85%的变化.

结论:

在世界各地的生态系统中,PFAS充当了持久的热带倍增剂.
该研究为优先考虑F-53B等高风险PFAS化合物和协调生物放大评估提供了一个框架.
结果支持更严格的PFAS法规,以减轻广泛的生态和健康影响.

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Trophic Efficiency

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Trophic Levels

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