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<p>This study evaluates the physicochemical and radiological quality of surface water in a specific region of Haouz after an earthquake to assess its suitability for consumption. Sampling revealed stable conditions, with neutral pH values around 7 and conductivity ranging from 635 to 1732&#xa0;µS&#xa0;cm⁻<sup>1</sup>. A strong correlation (97%) was observed between conductivity and total dissolved solids (TDS), confirming conductivity as a reliable indicator of TDS. Radiological analysis showed that all alpha and beta activities were below detection limits, indicating low contamination. These activities complied with Moroccan drinking water standards, with detection limits of 0.024&#xa0;Bq&#xa0;L⁻<sup>1</sup> for alpha and 0.044&#xa0;Bq&#xa0;L⁻<sup>1</sup> for beta. Annual ingestion doses were below WHO and IAEA thresholds, with conservative estimates likely overestimating actual doses.</p>

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Evaluating radioactivity in Haouz Moroccan region water sources after earthquakes: a gamma spectrometry and alpha/beta analysis

  • 期刊论文

  • 发表日期：

    2025年3月28日

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  • Zobair El Afia,
  • Abdessamad Didi,
  • Ismail Hilal,
  • Walid Mahmi

摘要

This study evaluates the physicochemical and radiological quality of surface water in a specific region of Haouz after an earthquake to assess its suitability for consumption. Sampling revealed stable conditions, with neutral pH values around 7 and conductivity ranging from 635 to 1732 µS cm⁻1. A strong correlation (97%) was observed between conductivity and total dissolved solids (TDS), confirming conductivity as a reliable indicator of TDS. Radiological analysis showed that all alpha and beta activities were below detection limits, indicating low contamination. These activities complied with Moroccan drinking water standards, with detection limits of 0.024 Bq L⁻1 for alpha and 0.044 Bq L⁻1 for beta. Annual ingestion doses were below WHO and IAEA thresholds, with conservative estimates likely overestimating actual doses.