微塑料在西太平洋温暖池的垂直分布:不同采样方法的实地结果比较
Changxing Zong1, Lixin Zhu1, Khalida Jabeen1
1State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Plastic Marine Debris Research Center, East China Normal University, Shanghai 200241, China; Region Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, 200241, China.
Journal of hazardous materials
|September 7, 2024
概括
海洋微塑料 (MP) 污染是一个重要的环境问题. 这项研究揭示了水柱中的MPs来源于表面层释放,其丰度因采样方法而异.
科学领域:
- 海洋污染 海洋污染
- 海洋学 海洋学 海洋学
- 环境科学环境科学
背景情况:
- 海洋微塑料 (MP) 构成了日益严重的环境威胁.
- 在海洋中MP的垂直分布仍然不太清楚.
- 采样方法的差异阻碍了数据的编制.
研究的目的:
- 为了调查海洋内部的MP污染在西太平洋温暖池.
- 使用CTD采样器和现场过系统来比较MP的丰度.
- 确定影响MP分布和来源的因素.
主要方法:
- 使用CTD和大批量现场过系统同时采样.
- 分析微塑料的数量,成分 (PET,纤维) 和形状.
- 评估海洋电流对水平分布的影响.
主要成果:
- 在CTD (115.12 ± 64.13 n/m3) 和现场过 (0.37 ± 0.44 n/m3) 之间观察到MP丰度的显著差异.
- 聚乙烯二甲 (PET) 和纤维是主要的MP类型.
- 海流影响了横向的MP分布;表面层的MP丰富度大大高于水柱.
结论:
- 水柱中的MP可能源于表面层不断释放的MP.
- 采样方法的标准化对于准确的PM污染评估至关重要.
- 了解垂直MP分布是减轻海洋污染的关键.
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