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在虫中对基和多基物质 (PFAS) 生物积累的审查

Lawrence P Burkhard¹, Lauren K Votava²

¹Great Lakes Toxicology and Ecology Division, Center for Computational Toxicology and Exposure (CCTE), Office of Research and Development, U.S. Environmental Protection Agency, 6201 Congdon Blvd, Duluth, MN 55804 USA.

Environmental advances

|March 14, 2024

概括

这次审查发现,关于碳酸和硫酸PFAS的数据足以评估中的生物积累,用于环境风险评估. 对于其他PFAS类别和实地研究需要更多的数据.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
环境化学环境化学

背景情况:

在全球产品中普遍存在和多基物质 (PFAS),并且已经污染了陆地生态系统.
众所周知,一些PFAS,如PFOS和PFOA,具有生物积累性.
虫是陆地食物链的关键,需要关于PFAS生物积累的数据来进行风险评估.

研究的目的:

审查和评估现有的生物群-土壤积累因子 (BSAFs) 对于虫中的PFAS.
确定现有数据是否足以用于对陆地PFAS污染风险评估.

主要方法:

进行文献搜索,从实验室和实地研究中编译BSAF.
专门针对碳酸和硫酸 PFAS 类的评估数据.
对 perfluorooctane 硫酸 (PFOS) 和 perfluorooctanoic 酸 (PFOA) 的分析 BSAF.

主要成果:

现有足够的数据可以为碳酸和硫酸 PFAS 类推出 BSAF,用于风险评估.
实验室对PFOS和PFOA的测试可能达到稳定状态条件.
对于非酸性PFAS类别的数据有限,这阻碍了风险评估.
对于PFOS和PFOA的平均BSAF分别为0.167和0.0413 (kg-OC/kg-ww).

结论:

对于碳酸和硫酸 PFAS 的 BSAF 数据足以用于陆地风险评估.
较长链的碳酸和硫酸在吸收暴露时可能无法达到平稳状态.
进一步的研究,包括实地研究和非酸性PFAS数据至关重要.

关键词:

生物积累生物积累生物积累土虫土虫是一种虫.这种类型的植物有Oligochaetes和Oligochaetes.在PFAS中,我们可以使用PFAS.

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