聚二 (PCB) 在尼日利亚奥丁河战略水域的定量概况,来源和健康影响
Adebanjo Jacob Anifowose1, Mariam Abolore Muritala1, Aaliyah Omotayo Bello1
1Department of Pure and Applied Chemistry, Faculty of Basic and Applied Sciences, College of Science, Engineering and Technology, Osun State University, P.M.B. 4494, Osogbo, Osun State, Nigeria.
Journal of contaminant hydrology
|December 30, 2025
概括
尼日利亚的多双 (PCB) 污染
科学领域:
- 环境化学环境化学
- 生态毒理学 生态毒理学
- 公共卫生 公共卫生
背景情况:
- 尼日利亚奥森州的奥丁河对当地社区至关重要,支持渔业,供水和农业.
- 多双 (PCB) 是持久性有机污染物,已知对健康有不良影响.
- 由于其经济和国内重要性,了解奥丁河中的PCB污染至关重要.
研究的目的:
- 评估奥丁河中19种有毒多双 (PCB) 的污染水平.
- 为了确定河流中PCB污染的来源.
- 评估PCB污染对人类和水生生物造成的潜在健康风险.
主要方法:
- 从六个不同的地点收集了河水样本.
- 使用液液提取方法提取PCB.
- 使用气体染色体质谱法 (GC-MS) 进行了PCB的量化.
- 主要组件分析 (PCA) 用于识别污染源.
主要成果:
- 检测到了所有19种PCB,其度范围从0.002μg/L (PCB206) 到0.96μg/L (PCB180).
- 总PCB度 (2.96μg/L) 显著超过了饮用水限制 (0.5μg/L).
- PCB180,PCB170,PCB44,PCB5,PCB187和PCB18是主要的同源物.这些同源物中,PCB18和PCB18是主要的同源物.
- 在Eko-Ende大附近的河流中部观察到较高的PCB含量.
- 源头与大的液压系统,塑料,油漆和农业化学品下水有关.
- PCB5,PCB44,PCB170和PCB180具有非致癌性和致癌性风险,特别是通过摄入.
结论:
- 奥丁河受到PCB的严重污染,对当地居民和水生生态系统构成重大健康风险.
- PCB污染源于多种来源,包括工业和农业活动.
- 迫切需要有效的管理策略来缓解PCB污染,保护公众健康和环境.
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