在加拿大群岛的地表水和海中的微塑料和中塑料污染:一项审查
Andrea García-Regalado1, Alicia Herrera1, Rodrigo Almeda1
1EOMAR, ECOAQUA, Universidad de Las Palmas de Gran Canaria, Spain.
Marine pollution bulletin
|March 13, 2024
概括
加拿大群岛面临着严重的海洋塑料污染,风向海的污染程度远高于风向海. 微塑料普遍存在,突出了进一步研究和保护工作的迫切需要.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 海洋学 海洋学 海洋学
背景情况:
- 位于北大西洋的加那利群岛丰富的海洋生物多样性.
- 它沿着加那利海流 (Canary Current) 沿线,这是海洋塑料垃圾的通道.
- 这种位置使得这些岛屿非常容易受到海洋塑料污染的影响.
研究的目的:
- 审查过去十年加拿大群岛中等塑料和微塑料的研究.
- 评估塑料污染在整个群岛的水平和分布.
- 分析塑料的特性 (大小,类型,颜色,聚合物) 和污染模式.
主要方法:
- 关于加拿大群岛中等塑料和微塑料的现有科学文献的综述.
- 专注于海和地表水域的数据.
- 分析了污染水平,分布 (风向和向区域) 和塑料特性.
主要成果:
- 沙塑料度在1.5至2972件/m2之间,平均为381±721件/m2.
- 表面水中的微塑料度有很大的差异 (平均998 × 103 ± 3364 × 103个物品/平方公里和10 ± 31个物品/平方米).
- 风向海的塑料污染明显高于风向海;微塑料积聚在高海拔岛屿的风向区域.
结论:
- 加那利群岛是海洋塑料污染的热点,表面水中有高度的微塑料.
- 白色/透明/无色聚乙烯碎片是发现的最常见的微塑料.
- 需要对海洋垃圾的风流,水柱,沉积物和较小的微塑料部分 (<200微米) 进行进一步研究.
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