在摩洛哥东部地中海沿岸的沙上,微塑料的丰富性和分布
S Azaaouaj1, D Nachite1, G Anfuso2
1Laboratory of Applied and Marine Geosciences, Geotechnics and Geohazards (LR3G), Faculty of Sciences, University of Abdelmalek Essaâdi, 93000 Tetouan, Morocco.
Marine pollution bulletin
|February 10, 2024
概括
在摩洛哥地中海海上评估了微塑料污染. 纤维微塑料 (MP) 是最常见的,聚乙烯和聚烯是普遍存在的聚合物类型,表明污染水平中等.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 聚合物科学 聚合物科学
背景情况:
- 微塑料污染是一个日益严重的全球性问题.
- 沙是海洋生态系统和人类互动的关键接口.
- 了解微塑料的分布对于有效的环境管理至关重要.
研究的目的:
- 量化微塑料的数量,大小,形状,颜色和聚合物类型.
- 评估摩洛哥东部地中海沿岸19个沙的微塑料污染水平.
- 确定该地区微塑料的主要来源和特征.
主要方法:
- 从19个不同的海地点收集和分析沉积物样本 (5毫米-63微米).
- 微塑料的详细表征,包括丰富度,尺寸分布 (大MP1-5毫米,小MP<1毫米),形态 (纤维,碎片,薄膜,颗粒,泡) 和颜色.
- 使用富里埃变换红外光谱法 (FTIR) 识别聚合物类型.
主要成果:
- 微塑料的度范围从40 ± 7.4到230 ± 48.6 MPs,每公斤-1.1.
- 纤维微塑料占大多数 (74.72%),其次是碎片 (20.26%).
- 透明 (50%) 和蓝色 (17%) 颗粒是最常见的,不规则的形状占主导地位. 聚乙烯 (PE),聚烯 (PS),聚烯 (PP) 和聚乙烯 (PVC) 是最常被识别的聚合物.
结论:
- 摩洛哥东部地中海沿岸的微塑料污染程度中等.
- 主要类型是纤维微塑料,可能来自织和渔业行业.
- 调查结果强调,需要制定有针对性的战略,以减轻在这个生态敏感地区的微塑料污染.
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