塑料相关的化学物质是北极海鸟摄入塑料的指标吗?
France Collard1, Felix Tulatz2, Mikael Harju3
1Norwegian Polar Institute (NPI), Fram Centre, N-9296, Tromsø, Norway; Norwegian Institute for Water Research (NIVA), Fram Centre, N-9296, Tromsø, Norway.
Chemosphere
|March 24, 2024
概括
北方鱼摄入大量的塑料,但塑料负载与组织中的塑料相关化学物质 (PRC) 不相关. 这表明海鸟除了直接摄入塑料之外,还存在复杂的暴露途径.
科学领域:
- 环境毒理学环境毒理学
- 海洋生态海洋生态学
- 鸟类生物学 鸟类生物学
背景情况:
- 北方 (Fulmarus glacialis) 由于食习惯而积累了大量的塑料负荷.
- 塑料的摄入会通过化学物质的转移给海鸟带来物理和毒理风险.
- 塑料摄入对海鸟污染物吸收的作用尚不清楚.
研究的目的:
- 量化北方的塑料相关化学物质 (PRCs).
- 评估塑料负担与PRC度之间的关系.
- 调查PRC作为海鸟摄入塑料的潜在代理物.
主要方法:
- 从富尔玛幼和非幼收集了血液和肝脏样本.
- 样本中的量化PBDE209,脱和酸盐代谢物.
- 分析了塑料负担 (质量,数量) 和中国的塑料度之间的相关性.
主要成果:
- 在28.2%的肝脏中检测到PBDE209;在所有样本中检测到德克602;在33%的样本中检测到德克603.
- 在三分之一的血液样本中检测到甲酸盐.
- 整体塑料负担和PRC水平之间没有显著的相关性,除了PBDE209和新生儿的塑料数量之间的潜在异常驱动的联系.
结论:
- 海洋鸟类中PRC暴露是复杂的,受直接塑料摄入以外的因素的影响,包括猎物.
- 塑料摄入和PRC吸收到组织中的时间表是复杂的.
- 鉴于观察到的暴露路径,PRCs可能不是北方 fulmars塑料摄入的可靠代理.
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