在两个大湖流域中对比铜度和同位素成分
Tassiane P Junqueira1, Daniel F Araújo2, Anna L Harrison3
1Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Ontario, Canada.
The Science of the total environment
|August 18, 2023
概括
铜 (Cu) 的稳定同位素揭示了安大略省河流中不同的污染源. 工业采矿的影响在西班牙河中可追溯,而特伦特河显示复杂,分散的铜源.
科学领域:
- 环境地质化学环境地质化学
- 同位素水文学 同位素水文学
- 水生生地化学 水生生地化学
背景情况:
- 铜 (Cu) 的稳定同位素为水生生地化学提供了洞察力.
- 它们在大型河流系统中的使用较少.
- 了解Cu的动态对于水质管理至关重要.
研究的目的:
- 评估加拿大两个主要河流系统的铜负载和来源.
- 在大型河流环境中应用Cu稳定同位素.
- 为了区分点和分散的Cu源.
主要方法:
- 主要和微量元素的分析.
- 铜 (Cu) 稳定同位素分析 (δ65Cu).
- 混合建模. 混合建模.
主要成果:
- 西班牙河:矿区附近的正值 δ65Cu标志,下游被自然水分稀释.
- 特伦特河:不规则的 δ65Cu 图案,超过了土壤变性,表明分散和混合的来源.
- 在两个水域中,的度在空间上有所不同.
结论:
- 金属稳定同位素对于追踪大型河流中的来源是有效的.
- 区分工业采矿的影响与分散的农业投入.
- 提高了对河流系统的基线金属动态的理解.
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