微塑料的分布特征和来源在海上,这些海是中国绿最大的息地
Ting Zhang1,2, Deqin Li1, Yunteng Liu2,3
1Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China.
Toxics
|February 23, 2024
概括
微塑料污染是对海洋生物日益关注的一个问题,即使在诸如洋群岛之类的偏远地区. 研究表明,在上带的微塑料含量较高,主要来自碎片化的海碎片,威胁着绿的息地.
科学领域:
- 海洋生物学 海洋生物学
- 环境科学 环境科学
- 生态毒理学 生态毒理学
背景情况:
- 微塑料污染对海洋生态系统和息地构成重大威胁.
- 海的筑巢地特别容易受到环境污染物的影响.
- 奇连洋群岛是中国关键绿 (Chelonia mydas) 筑巢地点的所在地,需要进行污染评估.
研究的目的:
- 调查北岛,吉良洋群岛表面沉积物中微塑料污染的水平和类型.
- 为了比较不同沿海区域 (底部,潮间,上潮) 的微塑料丰富度.
- 确定影响这种重要的海息地的微塑料的来源和特征.
主要方法:
- 从北岛的底部,潮间和上潮区抽取表面沉积物的样本.
- 微塑料的量化和表征,包括类型和聚合物组成.
- 统计分析以比较区域之间的微塑料丰度.
主要成果:
- 与底部和潮间区域相比,在 supratidal zone 中微塑料的丰富程度显著更高.
- 在北岛西南海岸发现了最高的微塑料度.
- 塑料块和纤维在底部区域占主导地位,而塑料块和泡在潮间和上潮区域占主导地位,主要是聚乙烯 (PE) 和聚烯 (PS).
结论:
- 北岛海上的微塑料主要是二次微塑料,起源于较大的塑料碎片的碎片化.
- 沙清洁工作,重点是去除碎片化塑料垃圾,对于减轻二次微塑料污染至关重要.
- 减少沙上的塑料垃圾对于保护中国重要的绿色海筑巢地至关重要.
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