评估微塑料污染的来源和量化其在巴鲁河的丰富性,达卡,孟加拉国,孟加拉国
Anika Tasnim Odora1, Sifat Aysha1, Maisha Binte Sultan1
1Department of Environmental Science, Faculty of Science and Technology, Bangladesh University of Professionals (BUP), Mirpur Cantonment, Dhaka, 1216, Bangladesh.
Environmental monitoring and assessment
|August 31, 2024
概括
孟加拉国巴鲁河的微塑料污染很高,织厂是其中的主要来源. 大多数微塑料都是小纤维,表明潜在的纳米塑料形成和广泛的污染.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 分析化学 分析化学
背景情况:
- 微塑料 (MPs) 是一种持久性污染物,在环境中存在的程度越来越高.
- 河流是重要的淡水生态系统,但对微塑料污染的研究不足.
- 了解孟加拉国巴鲁河等河流中的微塑料污染对生态系统健康至关重要.
研究的目的:
- 调查Balu河表面水中的微塑料的来源,流行,空间分布和物理化学特征.
- 为了确定河中发现的微塑料的类型和聚合物组成.
- 评估工业活动对主要淡水系统中微塑料污染的影响.
主要方法:
- 在Balu河沿线的六个地点采集地表水样,靠近各种工业区.
- 立体显微镜分析微塑料的数量,形状,大小和颜色.
- 扫描电子显微镜 (SEM) 用于粒子形态和降解评估.
- 福里埃变换红外光谱 (FTIR) 用于聚合物识别.
主要成果:
- 平均微塑料度为102.5±12.83件/l,在织厂附近的最高水平 (122±18件/l).
- 纤维 (29%),颗粒<100μm (45%) 和透明塑料 (19%) 是最常见的.
- 尼龙,PVC,HDPE,LDPE,聚烯,聚烯和烯被确定为主要的聚合物类型.
结论:
- 巴鲁河受到微塑料的严重污染,受到邻近的工业活动的影响.
- 小纤维的流行表明正在进行的降解和潜在的纳米塑料形成.
- 这项研究强调,迫切需要在孟加拉国河流生态系统中管理微塑料污染.
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