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巴伦茨海沿岸沼泽和流域土壤中的多环芳香化合物

Evgenia V Yakovleva¹, Svetlana V Deneva¹, Elena V Shamrikova¹

¹Institute of Biology of Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, 167982 Syktyvkar, Kommunisticheskaya str., 28, Russia.

Marine pollution bulletin

|April 18, 2025

概括

巴伦茨海沼泽土壤中的多环芳 (PAH) 含量较低,主要来自诸如瓜诺和塑料废物等石油源. 土壤类型,而不是靠近海洋,主要影响PAH组成,永久土影响迁移.

科学领域:

环境化学环境化学
土壤科学土壤科学
海洋生态海洋生态学

背景情况:

多环芳 (PAH) 是持久性有机污染物,需要在敏感生态系统中详细分析来源和命运.
北极沿海沼泽是独特的环境,受到海洋和陆地输入的影响,这使得它们对研究污染物行为至关重要.

研究的目的:

调查巴伦茨海沿岸沼泽土壤中PAHs的来源,组成和分布.
为了确定控制PAH积累和迁移的因素在不同的土壤类型在这个北极沿海环境.

主要方法:

从各种沼泽区的泥炭和有机矿物土壤中分析PAH概况.
集群分析的应用,以区分PAH来源和影响因素.
评估土壤特性 (盐度,颗粒度,有机物质,碳,) 和它们与PAH组成的相关性.

主要成果:

巴伦茨海沼泽土壤中PAH含量较低,与背景水平一致,主要是石化起源的.
泥炭土表现出比有机矿物土壤更高的PAH度,受历史形成和有机物质含量的影响.
氧化的来源包括瓜诺,巨型植物和塑料废物,海浪影响低和中,植被/泥炭形成影响高.
土壤类型对PAH成分的影响比靠近海洋的影响更大.
盐度和颗粒度成分是PAH在有机矿物土壤中积累的关键因素,而有机物质和泥炭分解在有机土壤中占主导地位.
永久土限制PAH迁移,导致在季节性解层边界积累.

结论:

巴伦茨海沼泽土壤中的PAH污染目前很低,已确定来源与自然 (瓜诺,巨型植物) 和人为 (塑料废物) 投入有关.
土壤特性,特别是土壤类型,有机物含量和物理特征,是这些北极沿海环境中PAH分布和行为的关键决定因素.
了解这些因素对于预测PAH的命运和管理脆弱的北极生态系统中的潜在风险至关重要,特别是考虑到永久土在PAH封存中的作用.

关键词:

积累积累是一种积累.巴伦茨海巴伦茨海沼泽土壤沼泽土壤移民移民移民这些PAHs是PAH.皮特兰德地区的泥炭地输入的来源输入的来源

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