在海洋环境中出现和生物积累的Per-和多基基物质 (PFAS) 的发生和生物积累模式
Bushra Khan1, Robert M Burgess2, Mark G Cantwell2
1ORISE Research Participant at the US Environmental Protection Agency, ORD-CEMM, Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA.
ACS ES&T water
|June 1, 2023
概括
和多醇基物质 (PFAS) 在海洋生物中生物累积,特别是在呼吸空气的生物和富含蛋白质的组织中. 长链PFAS和甲酸一样,在海洋生态系统中具有很高的持久性和生物积累潜力.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 海洋生物学 海洋生物学
背景情况:
- 和多基基物质 (PFAS) 是一种持久性合成化学物质,对环境和健康问题越来越关注.
- 它们在工业和消费品中的广泛使用导致环境污染.
- 了解PFAS在海洋生态系统中的生物积累是非常重要的,因为它们的持久性和潜在的毒性.
研究的目的:
- 审查和比较 PFAS 在海洋生物中的生物积累模式.
- 确定在海洋环境中引起关注的特定PFAS化合物.
- 分析不同海洋种类和组织中PFAS发生的趋势.
主要方法:
- 关于2000年至2020年间发表的科学研究的文献评论.
- 在海水,沉积物和海洋生物中分析PFAS发生数据.
- 基于分类学和组织特异性差异的生物积累模式的比较.
主要成果:
- 在蛋白质丰富的组织和呼吸空气的海洋生物中观察到高水平的PFAS.
- 长链 perfluoroalkyl carboxylic 酸,特别是 perfluoroundecanoic 酸,显示出高度和生物积累潜力.
- perfluorooctanesulfonic 酸在各种组织和种类中普遍存在;也检测到前体和替代 PFAS.
结论:
- 在海洋的种类和组织中,PFAS生物积累的差异很大,这对生物监测有影响.
- 长链PFAS和 perfluorooctanesulfonic acid是由于其持久性和生物积累而引起关注的关键化合物.
- 需要进一步的研究来解决PFAS生物监测的挑战,包括环境变量和生物转化.
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