在使用激光直接红外 (LDIR) 技术的海洋软体中微塑料的特征和潜在风险
Jia Teng1, Shuang Zhao2, Jianmin Zhao1
1Research and Development Center for Efficient Utilization of Coastal Bioresources, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, PR China; Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, 266237, PR China; Muping Coastal Environment Research Station, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, PR China.
来自海沿海水域的海洋软体体显示出高度的微塑料 (MP) 污染. 由于大量的MP摄入量,消费会带来潜在的健康风险,其中纤维和小颗粒最为普遍.
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:
- 海洋微塑料 (MP) 污染是一个重大的环境问题.
- 软体动物在海洋食物网中至关重要,并被人类消耗,引发了对MP转移的担忧.
- 了解商业捕捞的软体动物中的MP污染对于风险评估至关重要.
研究的目的:
- 调查海沿海水域的软体动物中微塑料的数量,特征和潜在风险.
- 评估与食用受污染的软体动物有关的人类健康风险.
- 为了确定在软体动物组织中存在的微塑料的类型和聚合物.
主要方法:
- 使用激光直接红外 (LDIR) 成像对软体组织进行微塑料分析.
- 微塑料丰富性的量化 (物品/湿重g).
- 微塑料尺寸,形状和聚合物类型的表征.
主要成果:
- 在软体动物软组织中,MPs的平均丰度为7.55±4.87 items/g (w.w.).
- 纤维 (52.63%) 和小于50微米 (76.19%) 的颗粒占主导地位;聚乙烯是最常见的聚合物.
- 记录了高高分子危险指数 (PHI) 的2115 (风险级别V) 和估计每年摄入的24,680颗颗粒/人/年.
结论:
- 来自海沿海水域的软体动物受到微塑料的严重污染,构成高风险水平.
- 像Buccinum undatum这样的食肉物种显示出更高的MP负载,这表明生物放大.
- 该研究强调了因食用污染的海鲜而引起的人类健康问题,并强调了减少污染的必要性.
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