持久性有机污染物的来源及其对机会性城市海的生理影响
David Nos1, Tomas Montalvo2, Núria Cortés-Francisco2
1Institut de Ciències del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain.
Journal of hazardous materials
|December 6, 2023
概括
像黄腿这样的城市鸟类暴露于持久性有机污染物 (POPs). 未成熟的海对这些污染物具有更高的敏感性,碳氧化酶 (CE) 表示暴露水平.
科学领域:
- 环境毒理学环境毒理学
- 城市生态学 城市生态学
- 野生动物生理学 野生动物生理学
背景情况:
- 城市化显著改变了生物多样性,并给野生动物带来了生理挑战.
- 持久性有机污染物 (POP) 对居住在城市的物种生理学的影响还没有得到充分研究.
- 黄腿海 (Larus michahellis) 在城市环境中很常见,可以接触到各种污染物.
研究的目的:
- 调查多二 (PCB) 和多二乙烯 (PBDE) 对黄腿生理学的影响.
- 评估城市海的异生菌保护,健康和养习惯生物标志物.
- 通过跟踪海的移动来识别潜在的POP来源.
主要方法:
- 从50只黄腿海 (成年和未成熟) 的血液样本进行分析.
- 对27个生理参数和生物标志物的评估.
- 追踪25只海的移动以确定息地使用和潜在的POP来源.
主要成果:
- 年龄和性别之间生物积累的PCB和PBDE没有显著差异.
- 未成熟的海,特别是雄性海,在POP度和碳酸酶 (CE) 活性之间显示出更高的相关性.
- 息地分析显示,城市地区是两个年龄组的主要地区,不成熟的动物经常游览淡水,垃圾填埋场和农业场所.
结论:
- 在未成熟的黄腿海中,等离子体碳基化酶 (CE) 可以作为对POP暴露和影响的有效标记物.
- 与成年人相比,未成熟的海可能对POPs具有更高的敏感性.
- 调查结果提供了对人类对城市生物多样性和野生动物健康的影响的见解.
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