在热带人造湖和相邻的水域中使用多种方法分析对微塑料污染的特征和风险评估
Md Maynuddin Pathan1, Md Rakeb-Ul-Islam1, Khadiza Nasrin1
1Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh.
Journal of contaminant hydrology
|November 9, 2025
概括
微塑料污染是南亚的卡普泰湖的一个重大问题. 这项研究发现了不同的污染水平和生态风险,突出了改善废物管理的迫切需要.
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:
- 南亚的湖泊环境在微塑料 (MP) 污染方面没有得到充分研究.
- 微塑料污染在全球范围内造成广泛的生态风险.
- 卡普泰湖是南亚最大的人造湖,面临着潜在的MP污染挑战.
研究的目的:
- 为了调查卡普泰湖水和沉积物中的微塑料污染水平.
- 评估与微塑料污染相关的多重方法生态风险.
- 为了确定湖内的微塑料来源和空间变化.
主要方法:
- 从卡普泰湖的十个站点抽取水和沉积物的样本.
- 微塑料的量化和表征 (尺寸,形状,颜色,聚合物类型通过FTIR).
- 使用污染指数 (CF,PLI,PHI,PERI) 和多变量分析 (CA,PCA) 的生态风险评估.
主要成果:
- 微塑料的丰富度在水中为650-2450个/立方米,在沉积物中为135-607.5个/公斤.
- 纤维 (<0.5毫米) 和透明的MP是最普遍的;确定了六种聚合物类型 (PE,PET,PP,PS,EVA,PU).
- 污染指数表明污染程度中等至严重,一些地区处于危险级别IV和"极端危险"的生态风险.
结论:
- 人类活动是卡普泰湖微塑料污染的主要来源.
- 在MP污染和生态风险的显著空间变化存在于湖的另一边.
- 改善废物管理和提高公众意识对于减轻工业,住宅和旅游区的PM污染至关重要.
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