Scholarlink

<p>This study evaluates surface water contamination in the Damous River, which drains the Sidi Driss mining area in northwestern Tunisia before flowing into the Sidi El Barrak Dam, a major freshwater reservoir. A combined approach based on pollution indices and multivariate statistical analyses was applied to characterize contamination patterns and identify potential sources. Seven surface water samples were collected along the Damous Wadi, along with a control sample from an unaffected site. Physicochemical parameters and concentrations of trace metals (Mn, Fe, Ag, As, Rb, Ti, Hg, Pb, Sr, Zn, Mo, Ni, Cd, Cu, Sb, Cr, Sn, Co, Ba, and U) were determined. Most elements complied with the permissible limits of the Tunisian Standard NT 106.02 and World Health Organization (WHO) guidelines, whereas Sr, Mn, Zn, and Cu exceeded these thresholds. The results reveal a marked downstream enrichment linked to mining activities. Principal Component Analysis (PCA) and cluster analysis further demonstrate that mine derived inputs are major contributors to water quality degradation. Overall, the findings highlight a clear upstream-downstream contamination gradient and emphasize the urgent need for systematic monitoring, control of pollution sources, and targeted remediation measures to protect the Sidi El Barrak Dam ecosystem.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Evaluation of surface water contamination through heavy metal indices : the case study of the Sidi Driss mine (North West of Tunisia)

  • 期刊论文

  • 发表日期：

    2026年1月8日

查看全文
  • Rania Salhi,
  • Nesrine Ouchir,
  • Nuno Durães,
  • Carla Patinha,
  • Eduardo Ferreira da Silva,
  • Ammar Mlayah

摘要

This study evaluates surface water contamination in the Damous River, which drains the Sidi Driss mining area in northwestern Tunisia before flowing into the Sidi El Barrak Dam, a major freshwater reservoir. A combined approach based on pollution indices and multivariate statistical analyses was applied to characterize contamination patterns and identify potential sources. Seven surface water samples were collected along the Damous Wadi, along with a control sample from an unaffected site. Physicochemical parameters and concentrations of trace metals (Mn, Fe, Ag, As, Rb, Ti, Hg, Pb, Sr, Zn, Mo, Ni, Cd, Cu, Sb, Cr, Sn, Co, Ba, and U) were determined. Most elements complied with the permissible limits of the Tunisian Standard NT 106.02 and World Health Organization (WHO) guidelines, whereas Sr, Mn, Zn, and Cu exceeded these thresholds. The results reveal a marked downstream enrichment linked to mining activities. Principal Component Analysis (PCA) and cluster analysis further demonstrate that mine derived inputs are major contributors to water quality degradation. Overall, the findings highlight a clear upstream-downstream contamination gradient and emphasize the urgent need for systematic monitoring, control of pollution sources, and targeted remediation measures to protect the Sidi El Barrak Dam ecosystem.