沿海养殖 (Crassostrea angulata) 贝中的微塑料:数量,特征和多样性
Chih-Feng Chen1, Yun-Ru Ju2, Yee Cheng Lim1
1Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan.
Marine pollution bulletin
|August 6, 2023
概括
微塑料 (MPs) 在养殖贝中发现,较小的贝和无机分数显示出更高的MP丰度. 2mm以下的纤维MP最常见,表明MP嵌入生物矿物质.
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 (MP) 是新兴的污染物,有可能透到生物组织和生物矿物质中.
- 关于生物矿物中野生微塑料污染的数据有限.
- 贝代表了海洋环境中微塑料积累的潜在水槽.
研究的目的:
- 来自台湾的养殖贝 (Crassostrea angulata) 的微塑料丰度和特征的量化.
- 为了研究贝内的微塑料的分布和积累模式.
- 评估嵌入生物矿物中的微塑料的多样性.
主要方法:
- 对贝中的微塑料数量和特征的分析.
- 用于差异分析,将贝分成无机 (CaCO3) 和有机成分.
- 统计分析以确定微塑料分布的显著差异,基于外大小和碎片.
主要成果:
- 微塑料在贝中无处不在,平均含量为0.70±0.40MP/g.
- 在较小的贝 (<6.5厘米) 和无机片中观察到更高的微塑料丰度.
- 纤维微塑料 (<2毫米) 占检测到的微塑料的大部分 (93.7%),其中 rayon 是一个重要的组成部分 (89.5%).
结论:
- 贝是沿海环境中微塑料积累的重要储存库.
- 较小的尺寸和纤维状形态促进了微塑料在生物矿物中嵌入.
- 需要进一步的研究来确认贝是否含有比软组织更高的微塑料负载.
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