在法国地中海沿岸的金属污染:从背景到当前状态
Daniel Santos Mulholland1, Marcus Vinicius Sousa Conceição2, Nicolas Briant3
1Laboratório de Águas e Efluentes e Laboratório de Análises Ambientais - Programa de Pós-Graduação em Ciências Florestais e Ambientais, Universidade Federal de Tocantins, Gurupi, TO, Brazil.
Marine pollution bulletin
|June 22, 2025
概括
法国地中海沿岸沉积物显示出广泛的金属丰富,由于污染而在科尔蒂乌和图隆发现局部生态风险. 迫切需要有针对性的减缓措施来解决这些污染问题.
科学领域:
- 环境化学环境化学
- 海洋污染 海洋污染
- 生态毒理学 生态毒理学
背景情况:
- 法国地中海沿岸面临着历史性的人为金属污染.
- 目前的污染水平和相关的生态风险在很大程度上未得到量化.
研究的目的:
- 确定自然背景金属水平.
- 确定空间污染模式.
- 评估金属积累带来的生态风险.
主要方法:
- 在74个表面沉积点和3个沉积芯中分析了主要和微量金属 (Al,Fe,Mn,Pb,Zn,Cd,Cu,Hg).
- 使用ICP-MS和AMA进行金属分析.
- 在1917年之前的沉积物核心上使用多变量变化点分析确定工业化前背景水平.
主要成果:
- ~60%的样本超过了污染负载指数 (PLI) >1,这表明海岸的丰富程度很大.
- 生态风险 (m-ERM-Q>1) 局限于科尔蒂乌和图隆.
- 特定金属 (Cd,Cu,Pb,Hg,Zn) 在科尔蒂乌和图隆超过了与废水排放和海事/工业活动相关的值.
结论:
- 在法国地中海沿岸,普遍存在金属丰富现象.
- 局部化的生态风险是由不同的污染源驱动的.
- 迫切需要有针对性的减缓战略,以解决金属污染和生态影响.
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