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与温带地区相比,在热带海岸地区的沉积物中,和多基物质 (PFAS) 的沉积物污染更严重:一个被忽视的热点

Hui Xie¹, Shiya Gu², Yang Cui²

¹State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 211135, China; Poyang Lake Wetland Research Station, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Jiujiang 332899, China.

Journal of environmental sciences (China)

|March 1, 2026

概括

热带沿海沉积物显示出比温带地区更高的和多基物质 (PFAS). 诸如雨水排水等陆地输入是PFAS的主要来源,沉积物质的特性表明污染.

科学领域:

环境化学环境化学
海洋科学海洋科学
污染研究污染研究

背景情况:

热带沿海地区面临着独特的环境条件 (高降水量,太阳辐射,海面温度).
对于热带沿海沉积物中遗留和新出现的和多基物质 (PFAS) 的了解有限.
PFAS是持久性有机污染物,具有潜在的环境和健康影响.

研究的目的:

分析热带沿海沉积物中遗留,前体和新出现的PFAS的分布,来源和命运.
将热带沉积物中的PFAS度与温带地区的PFAS度进行比较.
为了确定沉积物质量参数,表明PFAS污染.

主要方法:

在沿海沉积物样本中对遗留,前体和新出现的PFAS进行了全面分析.
使用先进的分析技术量化PFAS度.
统计分析以将PFAS水平与沉积物特征相关联,并确定污染源.

主要成果:

热带沉积物中的PFAS度比温带地区报告的要高.
在所有样本中都始终检测到五种遗留的PFAS和三种前体.
雨水排水 (46.6%) 是主要的PFAS来源,其次是太空发射/码头活动 (15.9%).
沉积物中,和成分与特定的PFAS组相关.

结论:

热带沿海沉积物是广泛的PFAS的重要沉点.
陆地活动和环境因素推动了这些环境中的PFAS积累.
沉积物特性可以作为评估PFAS污染水平的有价值指标.

关键词:

沿海沉积物的沉积物新出现的污染物新出现的污染物和多基基物质 (PFASs) 的使用.空间分布的空间分布热带地区是一个热带地区.

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