潮间沉积物和 (Cerastoderma edule) 的微塑料污染
Stephen Kneel1, Caroline Gilleran Stephens1, Alec Rolston1
1Centre for Freshwater and Environmental Studies, Dundalk Institute of Technology, Dundalk, Co. Louth A91 K584, Ireland.
Marine pollution bulletin
|June 21, 2024
概括
敦达克湾的微塑料污染超过了安全水平. 该研究在沉积物和 (Cerasastoderma edule) 中发现了微纤维,作为浮动微塑料的潜在生物监测器.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 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生物多样性构成重大威胁.
- 像Cerasastoderma edule这样的双体对商业渔业和生态平衡至关重要.
- 潮区,如达克湾的潮区,容易受到污染物积累的影响.
研究的目的:
- 在Cerasastoderma edule和潮间沉积物中研究微塑料的时间度.
- 为了确定在研究区域中存在的微塑料的类型和形状.
- 评估Cerasastoderma edule作为微塑料污染的生物监测器的适用性.
主要方法:
- 季节性采样Cerasastoderma从Dundalk湾的水和潮间沉积物.
- 微塑料的量化和表征 (大小,形状,聚合物类型).
- 微塑料度与已确定的安全负载水平的比较.
主要成果:
- 微塑料度在沉积物中范围为1.55 ± 1.38至1.92 g−1 ,在中范围为3.43 ± 2.47至6.90 ind−1 .
- 在沉积物和中,微纤维是占主导地位的微塑料类型.
- 两个矩阵中的微塑料含量大约是安全负载极限的两倍.
- 考克尔斯发现了沉积物中没有发现的浮力微塑料,这表明了生物监测的潜力.
结论:
- 达尔克湾的微塑料污染严重,超过了安全的环境值.
- Cerasastoderma edule可以作为一个有效的生物监测器来检测微塑料污染,特别是浮力类型.
- 需要进一步的研究,以了解微塑料积累在这个重要息地的全部生态影响.
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