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在缅甸收集的沉积物中微塑料的分布

Thant Zin Tun1,2, Ei Ei Mon3,4, Haruhiko Nakata5

  • 1Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan. thantzintun.uy@gmail.com.

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概括

微塑料 (MP) 污染在缅甸很高.

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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:

  • 微塑料 (MP) 污染是一个日益严重的全球问题.
  • 关于东南亚陆地环境中MP分布的数据有限.
  • 缅甸的沉积物MP污染状况基本上是未知的.

研究的目的:

  • 调查缅甸沉积物中微塑料 (MP) 的度和流行情况.
  • 在研究领域中识别主要的MP聚合物和形状.
  • 探索MP污染和人为因素之间的潜在相关性.

主要方法:

  • 从缅甸 (2014-2018) 的排水道,湖泊,河流和海收集了68个沉积物样本.
  • 分析样本以确定MP度 (片/kg干重).
  • 识别了检测到的MP的聚合物类型和形状.

主要成果:

  • 在城市沉积物中发现的高MP度 (高达13,855个/kg干重) (仰光,曼德拉,帕泰恩).
  • 城市的MP水平比农村地区 (Wundwin) 高两倍.
  • 聚乙烯,聚烯和聚乙烯二甲是主要的聚合物,碎片,纤维和薄膜是主要的形状.

结论:

  • 缅甸的城市地区与农村地区相比,沉积物中的微塑料 (MP) 污染明显高.
  • 人口密度和城市固体废物产生率可能是MP污染的关键驱动因素.
  • 这项研究提供了关于缅甸沉积物中微塑料分布的第一份报告,突出了关键的环境问题.