印度西南部戈阿州查波拉河的微塑料污染:空间分布和风险评估
Niyati Kalangutkar1, Shritesh Mhapsekar2,3, Prachi Redkar2
1School of Earth, Ocean and Atmospheric Sciences, Goa University, Taleigao Plateau, Taleigao, 403206, Goa, India. niyati@unigoa.ac.in.
Environmental monitoring and assessment
|April 2, 2024
概括
果阿的查波拉河的微塑料 (MP) 污染率很低,但需要注意. 这项研究量化了MP的丰富性,大小和聚合物类型,发现纤维和PET占主导地位,PHI显示高风险.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 生态毒理学 生态毒理学
背景情况:
- 关于戈阿河流系统中微塑料 (MP) 污染的数据有限.
- 微塑料污染对全球水生生态系统构成重大威胁.
- 了解热带河流中的PM污染对于有效的环境管理至关重要.
研究的目的:
- 研究查波拉河表面水中的微塑料的数量,大小,颜色和聚合物组成.
- 评估研究区域中与微塑料污染相关的潜在生态风险.
- 建立基线数据,以告知戈阿州对微塑料污染的缓解策略.
主要方法:
- 从查波拉河沿线的各个站点收集了地表水样本.
- 量化了微塑料,并分析了它们的特性 (大小,形状,颜色,聚合物类型).
- 使用光谱方法进行了聚合物鉴定,并使用PHI和PLI指数进行了风险评估.
主要成果:
- 微塑料度从0.1到0.47颗粒/L不等,平均为0.25颗粒/L.
- 纤维是主要的MP形状 (77.15%),聚乙烯二甲 (PET; 46%) 是最常见的聚合物.
- 风险评估表明基于PHI的高风险,而PLI建议低风险;人类源被确定为主要贡献者.
结论:
- 与其他热带河流相比,查波拉河的微塑料污染相对较低,但需要监测.
- 聚乙烯 (PET) 和纤维的普及率表明,织品和包装废弃物的大量投入.
- 建立的基线数据对于地方当局实施针对性减轻微塑料污染的目标措施至关重要.
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