在西南极半岛沿线的峡湾中量化微塑料
Tristyn N Garza1, David K A Barnes2, James D Scourse3
1University of West Florida, 11000 University Parkway, Pensacola, FL 32514, United States of America.
Marine pollution bulletin
|June 18, 2023
概括
微塑料越来越多地出现在南极峡湾,甚至在偏远地区. 从2017年到2020年,度每年都在上升,这表明尽管有海洋障碍,污染仍然广泛.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 南极研究南极研究
背景情况:
- 微塑料在全球普遍存在,对南极水域的数据很少.
- 西南极半岛的峡湾由于冰川的撤退而迅速变化.
- 之前的研究记录了南极海洋生物和沉积物中的微塑料.
研究的目的:
- 描述西南极半岛峡湾息地的微塑料度.
- 分析微塑料的存在,分类,颜色和尺寸随着时间的推移 (2017-2020年).
- 评估微塑料在地表和地底南极水域的分布.
主要方法:
- 在南极峡湾 (2017-2020年) 中从地表和盆地取水样 (2017-2020年).
- 微塑料的真空过和量化.
- 微富里埃转换红外光谱仪 (Micro-FTIR) 用于化学识别.
主要成果:
- 每年在所有采样的峡湾息地检测到微塑料.
- 从2017年到2020年,所有峡湾的微塑料度都显著增加.
- 尽管南极环极流,但在这些偏远的息地中,微塑料存在并增加.
结论:
- 南极峡湾被微塑料污染,即使是在最近脱冰的地区.
- 微塑料污染是南极水域日益严重的问题.
- 海洋流并不能完全防止微塑料分散到敏感的南极生态系统中.
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