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海洋海绵作为南极洲合成微纤维污染的生物指标

Andrea Corti¹, Giulia Pagano², Angelina Lo Giudice³

¹Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy; Center for Instrument Sharing of the University of Pisa (CISUP), 56126 Pisa, Italy.

The Science of the total environment

|August 6, 2023

概括

南极洲的海洋海绵被聚和聚胺微塑料污染. 这些海绵充当了重要的生物指标,甚至在偏远的极地地区也显示了污染水平.

科学领域:

环境科学环境科学
海洋生物学海洋生物学
分析化学分析化学

背景情况:

微塑料 (MP) 污染是一个全球性问题,极地地区越来越多地被认为是持久污染物的沉点.
海洋海绵过大量的水,使它们易于积累环境污染物,如微塑料.
聚和聚胺微塑料在织品和工业应用中很常见,以其耐用性而闻名.

研究的目的:

分析南极海洋海绵是否受到聚和聚胺微塑料 (MPs) 的污染.
使用敏感聚合物识别和特异分析 (PISA) 程序量化微塑料污染.
评估海绵作为远程海洋环境中微塑料污染的生物指标的潜力.

主要方法:

对来自南极洲泰提斯湾的海洋海绵物种的分析.
应用PISA程序,包括水解脱聚合和高性能液体染色学 (HPLC).
作为标记分析物,测量甲基乙烯酸 (TPA),6 - 氨基胺酸 (AHA) 和1,6 - 胺胺 (HMDA) 的量化.

主要成果:

在所有海绵物种中检测到二甲酸 (TPA),表明受聚 (例如,PBAT,PPTA) 污染的度为2.5-4.1 mg/kg.
在Haliclona (Rhizoniera) scotti中发现了1,6-hexanediamine (HMDA) 的含量为27μg/kg,这表明尼龙6,6受到污染.
酸化物中TPA的存在表明非PET聚来源,突出了PISA方法的特异性.

结论:

海洋海绵有效地集中海水中的微塑料,作为污染的有价值的生物指标.
这项研究揭示了南极海绵中的微塑料污染,即使来自非聚乙烯四甲酸盐 (PET) 来源.
海绵为原始和偏远的海洋生态系统中不断增加的微塑料污染水平提供了早期警告.

关键词:

生物过器是一种生物过器.人类影响人类的影响.微塑料是一种微塑料.海洋海洋海洋海洋波利费拉 (Porifera) 是一种有的植物.废水是废水,废水就是废水.

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