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<p>Mining is undoubtedly an important economic activity in Morocco but it can be related to many environmental and health problems. The current study is a review of previous research between 2005 and 2023 on the level of pollution by 7 heavy metals (Cd, As, Cu, Cr, Zn, Ni, and Pb) from 14 mining soils in Morocco and the related health risks. The mean average concentration varies in the following order Zn &gt; Pb &gt; Cr &gt; Cu &gt; Cd &gt; As &gt; Ni. In index of geological accumulation (I<sub>geo</sub>) terms, the most serious heavy metal contaminations were associated with Zn, Pb, Cu, as well as Cd. Furthermore, the analysis of the carcinogenic and non-carcinogenic risks showed that the Hazard Quotient (HQ), The Lifetime cancer risk (LCR) and the Hazard Index (HI) were extreme for children than for adults. As for the child population, in most mining soils the risks of non-carcinogenicity for Cd, Pb, Zn, As and Cu, as well as the carcinogenic risks for Pb, were found above the tolerable range for adults. This study provided valuable background data to better understand the heavy metals environmental impact and their potential health risks.</p>

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Heavy metal soil pollution in Moroccan mining areas and health implications: review

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • Mohamed Aba,
  • Mohamed Dalimi,
  • Khalid Bouiti,
  • Najoua Labjar,
  • Meryem Bensemlali,
  • Houda Labjar,
  • Siham Bouzekri,
  • Meryem Dafir,
  • Hamid Nasrellah,
  • Souad El Hajjaji

摘要

Mining is undoubtedly an important economic activity in Morocco but it can be related to many environmental and health problems. The current study is a review of previous research between 2005 and 2023 on the level of pollution by 7 heavy metals (Cd, As, Cu, Cr, Zn, Ni, and Pb) from 14 mining soils in Morocco and the related health risks. The mean average concentration varies in the following order Zn > Pb > Cr > Cu > Cd > As > Ni. In index of geological accumulation (Igeo) terms, the most serious heavy metal contaminations were associated with Zn, Pb, Cu, as well as Cd. Furthermore, the analysis of the carcinogenic and non-carcinogenic risks showed that the Hazard Quotient (HQ), The Lifetime cancer risk (LCR) and the Hazard Index (HI) were extreme for children than for adults. As for the child population, in most mining soils the risks of non-carcinogenicity for Cd, Pb, Zn, As and Cu, as well as the carcinogenic risks for Pb, were found above the tolerable range for adults. This study provided valuable background data to better understand the heavy metals environmental impact and their potential health risks.