在比斯河,西喜马拉雅山脉的微塑料污染和环境风险
Ritindra N Bhaduri1, Sougata Sinha2, Angelina M Guererro1
1Department of Biological Sciences, California State University Stanislaus, One University Circle, Turlock, CA, 95382, USA.
Environmental pollution (Barking, Essex : 1987)
|November 25, 2024
概括
微塑料污染在比斯河中普遍存在,在水和沉积物中都发现了高水平的微塑料污染. 这构成了极端的生态风险,可能会影响这个脆弱的喜马拉雅地区的人类健康.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 环境化学环境化学
背景情况:
- 西喜马拉雅山脉拥有脆弱的河流系统,包括比斯河,对当地生态系统和土著人口至关重要.
- 微塑料 (MP) 是普遍存在的环境污染物,但它们在比斯河中的存在和生态风险仍未得到充分研究.
- 旅游业和城市化导致大量的塑料和MP排放到比斯河.
研究的目的:
- 为了调查贝斯河水和沉积物中微塑料污染的程度.
- 评估与微塑料污染相关的环境和生态风险.
- 识别MP类型,聚合物及其与人口密度的相关性.
主要方法:
- 在比斯河300公里长的水和沉积物的抽样.
- 量化微塑料的丰富性,形态型和聚合物识别.
- 计算污染负载指数,聚合物危险指数和潜在生态风险指数.
主要成果:
- 微塑料在水 (46-222个物品/L) 和沉积物 (36-896个物品/kg) 中都很丰富,在采样地点广泛分布.
- 在水中MP的丰富程度与人口大小有显著的相关性,在库卢等人口密地区的度更高.
- 纤维和薄膜是常见的形态类型,主要是聚乙烯,具有极端的生态风险,由高危险和风险指数表明.
结论:
- 比斯河面临着严重的微塑料污染,构成极端的生态风险.
- 这些发现突出了对人类健康的潜在威胁,因为河流是当地社区的主要水源.
- 该研究为决策者提供了关键数据,帮助他们为脆弱的喜马拉雅地区制定环保战略.
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