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在铁矿尾矿破裂后评估地表水质量

Marys Lene Braga Almeida¹, Rafael Silva Souza², Bruna Nitzsche Morato³

¹Department of Materials Engineering and Construction, Federal University of Minas Gerais-UFMG, Belo Horizonte, Brazil. marys@demc.ufmg.br.

Environmental science and pollution research international

|May 15, 2025

概括

芬达奥大倒塌影响了多斯河的水质,增加了一些污染物,如铁和,同时减少了其他污染物. 河流的长期恢复需要持续监测.

科学领域:

环境科学环境科学
评估水质水质的评估.
环境毒理学环境毒理学

背景情况:

2015年Fundao尾矿大倒塌后,大量的采矿废物被释放到多斯河流域.
评估长期地表水质量影响对于了解环境后果和恢复状态至关重要.

研究的目的:

评估Fundao大倒塌对多斯河表面水质的持续影响.
使用历史数据,比较大故障前后的水质参数.

主要方法:

来自9个采样点的15个水质参数的分析,包括供水摄入口.
使用时间序列分析,莱文测试,曼-惠特尼测试和佩蒂特测试进行统计评估.
崩后数据与已建立的水质标准进行比较 (规范性考虑COPAM/2008).

主要成果:

溶解铁 (Fe), (Al),真色,度和总悬浮固体在崩后的非符合值增加.
观察到总 (Mn) 和总 (Pb) 的度降低.
对七种微金属 (As,Cd,Cr,Pb,Hg,Ni,Zn) 检测到中位数度的显著变化和数据系列的突然变化.

结论:

虽然一些参数显示立即变化,但统计分析表明许多参数缺乏明确的趋势,这表明复杂的恢复动态.
微量金属度的持续变化凸显了持续存在的环境问题.
持续,强大的水质监测对于确定多斯河的长期恢复前景至关重要.

关键词:

杜塞河 (Doce River) 是一个河流.铁矿的尾矿铁矿的尾矿铁矿的尾矿水道的污染点水道的污染点.水质监测监测水质监测水质

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