来自地中海西北部的三种浴性丰富鱼类中的持久性有机污染物 (POPs)
Guia Consales1, Massimiliano Bottaro2, Cecilia Mancusi3
1Department of Physical Sciences, Earth and Environment, University of Siena, Via Mattioli 4, Siena 53100, Italy; Department of Integrative Marine Ecology, Genoa Marine Centre, Stazione Zoologica Anton Dohrn, Italian National Institute for Marine Biology, Ecology and Biotechnology, Villa del Principe, Piazza del Principe 4, 16126 Genoa, Italy.
Marine pollution bulletin
|October 13, 2023
概括
深海积累了像PCB和DDT这样的持续性有机 (OCs). 这些污染物的母体转移在深海鱼中得到证实,随着化合物脂性增加.
科学领域:
- 海洋生物学 海洋生物学
- 环境化学环境化学
- 生态毒理学 生态毒理学
背景情况:
- 深海是已知的持久遗留污染物的沉池,包括有机 (OCs).
- 这些污染物可以积聚在深海生物中,由于它们的持久性和长期影响而带来风险.
- 鱼,特别是深海物种,容易受到这些污染物的生物积累的影响.
研究的目的:
- 检测和量化来自地中海的深海含有的污染物.
- 研究不同物种和组织中特定污染物 (HCB,DDT,PCB) 的分布模式.
- 评估深水鱼中污染物的潜在母性转移及其与化合物特性之间的关系.
主要方法:
- 分析了三种深海混凝土生物的肌肉和胚胎组织:金马,达拉蒂亚体和埃特莫普特鲁斯.
- 使用已确定的分析技术量化六二 (HCB),DDT及其异构体 (DDT) 和28种多二 (PCB) 异构体.
- 统计分析以比较物种,性别之间的污染物水平,并评估污染物特性与母体转移之间的关系.
主要成果:
- 在所有样本中检测到包括HCB,DDT和PCB在内的有机 (OCs) 在所有样本中检测到丰富的.
- 污染物的分布因物种而异:PCB > DDT ≫ HCB 在E.菜和C.monstrosa;DDT > PCB ≫ HCB 在D. licha.
- 在物种之间观察到OC水平的显著差异,但性别之间没有. DDT异构体的比率表示历史的农药输入.
- 在Etmopterus菜中证明了污染物的母体转移,随着化合物的脂性 (Log Kow) 的增加,转移率增加.
结论:
- 地中海深海的丰富含量丰富的藻类暴露于并积累了持久的有机.
- 存在特定物种的OCs积累模式,反映了饮食或生理学的潜在差异.
- 证据表明,深海鱼的母体转移突出显示了污染物暴露给后代的关键途径,受化学性质的影响.
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