采矿和电子废物回收利用影响北极湖泊中技术关键元素的空间分布,但不影响稀土元素
Marta Gabriele1, Maikel Rosabal2, Miguel Montoro Girona3
1Groupe de Recherche en Écologie de la MRC Abitibi (GREMA), Institut de Recherche sur les Forêts, Université du Québec en Abitibi-Témiscamingue, 341 Rue Principal Nord, Amos, Québec, J9T 2L8, Canada; Groupe de Recherche Interuniversitaire en Limnologie (GRIL), Université de Montréal, 141 Avenue du président-Kennedy, Montréal, Québec, H2X 1Y4, Canada.
The Science of the total environment
|November 16, 2025
概括
采矿和电子废物回收利用污染了湖泊的微量元素 (TE) 和技术关键元素 (TCE). 一些TEs和TCE在水,沉积物和鱼类中超出了安全指南,造成了潜在的人类健康风险.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 地质化学 地质化学
背景情况:
- 采矿和电子废物回收利用将微量元素 (TE) 引入水生环境.
- 新兴技术关键元素 (TCEs) 的分布和影响,包括稀土元素 (REEs),报告不足.
- 在历史矿山附近的北极湖生态系统面临潜在的污染风险.
研究的目的:
- 在北极湖水,沉积物和鱼中研究TE和TCE的空间分布.
- 将污染物度与已建立的环境质量指南进行比较.
- 评估与食用受污染的鱼类相关的潜在人类健康风险.
主要方法:
- 从鲁恩-诺兰达附近的六个北极湖收集了水,沉积物和鱼类 (肌肉,肝脏) 样本.
- 在环境和生物样本中分析了各种TE和TCE的度.
- 测量度与加拿大水质和沉积物质量指南进行比较.
主要成果:
- 在霍恩炼厂附近的湖泊中发现了高度的TE (例如,Cu,Se) 和一些TCE (例如,Ti,Co,Tl).
- 稀土元素 (REEs) 显示出与地质相关的空间模式,而不是污染.
- 在水和沉积物中,有几种TEs (例如Zn,Cd,Pb) 超过了质量指南;鱼类组织也显示这些元素的含量较高.
结论:
- 历史的采矿和炼活动影响了附近北极湖泊的TE和TCE.
- 一些TE和TCE通过鱼类消费对水生生态系统和潜在的人类健康构成风险.
- 生物监测计划应包括新兴的TCE,用于全面的环境风险评估和可持续的淡水管理.
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