基于卫星遥感的海沉积物上的微塑料分布:印尼巴厘岛的一个案例研究
Mohd Rashidi Abdull Manap1, Muhammad Ibadurrahman Bin Imizan2, Jannik Werner Dams3
1Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Medical Microspectroscopy Research Group, Department of Experimental Medical Science, Lund University, 22180 Lund, Sweden.
Journal of contaminant hydrology
|January 27, 2026
概括
巴厘岛的微塑料污染与海洋流和风有关. 聚烯碎片是最常见的,凯拉马斯海由于特定的水力动力学条件而出现了最高的污染.
科学领域:
- 环境科学 环境科学
- 海洋污染 海洋污染
- 海洋学 海洋学 海洋学
背景情况:
- 微塑料 (MP) 污染是全球沿海地区日益关注的问题.
- 以前在亚洲的研究已经注意到MP积累,但往往缺乏与水力动力学驱动器相关的细节性聚合物表征.
- 巴厘岛的海岸线需要具体的评估,将聚合物数据与当地海洋学过程相结合.
研究的目的:
- 评估巴厘岛三个选定的海上的微塑料的存在,聚合物组成和尺寸分布.
- 研究季节性海洋学过程对MP分布和度的影响.
- 确定研究区域中微塑料污染的基线参考条件.
主要方法:
- 收集了17个沙沉积物样本,这些沉积物来自Keramas Beach,Nyang Nyang Beach和Balangan Beach (2024年1月至7月).
- 利用干,显微镜和减弱的总反射率-里埃变换红外光谱 (ATR-FTIR) 来进行MP识别和表征.
- 使用卫星数据 (科珀尼克斯海洋/大气服务) 和估计的河流塑料排放,重建了水力动力学条件.
主要成果:
- 确定了10个微塑料颗粒 (<5毫米),主要是聚烯 (PS) 碎片 (2.5-5毫米范围).
- 在克拉马斯海 (2.54 ± 2.30 MPs/kg dw) 观察到的MP度最高,其次是阳海 (2.04 ± 2.49 MPs/kg dw) 和巴兰根海 (0.61 ± 1.37 MPs/kg dw).
- MP分布与水力动力学模式相关:克拉马斯海由于陆上风和特定电流而显示出高积累,而巴兰根海由于海上风而保持低积累.
结论:
- 季节性海洋学过程显著影响巴厘岛海上的微塑料沉积模式.
- 将光谱分析与水力动力学建模相结合,为了解MP传输机制提供了一个强大的框架.
- 结果支持针对性监测和改善巴厘岛和类似岛屿环境的沿海污染管理策略.
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