在挪威海岸附近的海洋哺乳动物中甲酸盐污染
Clare Andvik1, Pierre Bories2, Mikael Harju3
1Department of Biosciences, University of Oslo, Norway.
Marine pollution bulletin
|December 28, 2023
概括
挪威海岸附近的海洋哺乳动物表现出不同程度的甲酸盐污染. 白鼻海豚的度最高,而杀手和精油的度最低.
科学领域:
- 环境毒理学环境毒理学
- 海洋生物学 海洋生物学
- 化学风险评估 化学风险评估 化学风险评估
背景情况:
- 酸盐是海洋生态系统中广泛检测到的常见塑料添加剂.
- 这些化合物对海洋野生动物健康构成潜在风险.
- 以前的研究表明,海性哺乳动物中存在甲酸盐,但挪威海岸的数据有限.
研究的目的:
- 在海洋哺乳动物的乳脂样本中量化11个甲酸盐的度.
- 为了确定哪些酸盐化合物在这些物种中最常见.
- 为了比较挪威海岸沿线不同海洋哺乳动物物种的酸盐含量.
主要方法:
- 分析了来自16种海洋哺乳动物的油脂样本 (杀手,精油,长飞行员,白鼻海豚,港湾海豚,港湾海).
- 使用气体染色学和质谱学量化11种特定的甲酸盐化合物.
- 统计分析以比较物种和个体之间的甲酸盐度.
主要成果:
- 在样本中检测到五种甲酸盐:乙烯甲酸盐 (BBP),乙烯甲酸盐 (DEHP),二甲酸盐 (DiNP),二甲酸盐 (DiBP) 和二甲酸盐 (DOP).
- 白嘴海豚的整体甲酸盐污染量最高.
- 杀手,精油和长飞行员的度最低;在新生杀手中没有发现甲酸盐.
结论:
- 挪威水域的海洋哺乳动物暴露在各种酸盐中,污染水平因物种而异.
- 酸盐的存在,特别是在顶级捕食者身上,凸显了持续环境监测的必要性.
- 调查结果为未来的风险评估和塑料相关污染物的管理策略提供了关键数据.
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