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微塑料聚合物作为新出现的污染物沉没:特征和重金属保留研究

Sourav Bar¹, Ritam Sahu², Ajoy Kumar Bhaumik³

¹Coastal Environmental Studies Research Centre of Egra SSB College Under Vidyasagar University, West Bengal, India; Coastal Ecology Research Laboratory, Department of Zoology, Egra SSB College, West Bengal, India.

The Science of the total environment

|February 5, 2026

概括

在孟加拉湾沿岸,微塑料聚合物由化塑料和矿物形成,作为有毒金属的污染物沉池. 这些新型复合材料显著影响沿海污染动态,需要纳入环境监测.

科学领域:

环境科学环境科学
地质化学地质化学
材料科学材料科学材料科学

背景情况:

塑聚合物是塑料与自然材料的热融合形成的新兴污染物.
它们的微尺度衍生物,微塑聚合物,是海洋污染的重要但未被充分研究的组成部分.

研究的目的:

报告发生情况并描述来自孟加拉湾东北部海岸的微塑料聚合物.
研究它们的组成,形态和保留有毒金属的能力.

主要方法:

立体显微镜,共聚焦光显微镜和FESEM用于形态和纹理分析.
拉曼光谱和X射线衍射 (XRD) 用于聚合物和矿物识别.
热重力测量分析 (TGA),X射线光电子光谱 (XPS),能量散射X射线 (EDX) 和感应合等离子光辐射光谱 (ICP-OES) 用于组合和金属分析.

主要成果:

微塑料聚合物呈现异质纹理,含有化聚合物和矿物质含量,证实了它们的混合性质.
确定了七种聚合物类型 (PE,PP,PET,PLA,PES,PESU,PVE) 和矿物质 (石英,石).
观察到有毒金属 (Hg,Cd,Ni,Cr,Co) 的显著保留,由聚合物和矿物表面促进.

结论:

微塑料聚合物是稳定,反应性复合材料,在沿海环境中充当持续污染物的沉降剂.
它们影响金属流动性和污染物动态,需要将它们纳入污染监测和政策中.
需要进一步研究它们的降解,热带转移以及对海洋沉积物地质化学的影响.

关键词:

人为复合材料是人为复合材料.沿海污染沿海污染重金属吸附重金属吸附重金属吸附重金属吸附重金属吸附重金属吸附重金属微塑性聚合物微塑性聚合物塑聚合物是一种塑料聚合物.

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