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<p>Water pollution is a major issue nowadays, particularly with regard to heavy metal pollution. Laser Induced Breakdown Spectroscopy (LIBS) technology allows for the quick, in-situ, and real-time analyzing of water samples with little sample preparation and analysis without the need for additional chemical reagents. Here, with three water samples taken from contaminated surface water sources in Iraq, Calibration Free LIBS Analysis was used to diagnose the contaminants in the water both qualitatively and quantitatively. The results showed that the atomic lines of macronutrients (N, K, Ca, Mg), hazardous metals (Hg, Pb, Cd, Fe), and micronutrients (Ti, Cr, Co) are present in the recorded spectra. The discovered elements’ measured concentration in the river water displays the following trend: Mn ˃ S ˃ Fe ˃ N ˃ Co ˃ Ti ˃ Ni ˃ Cr ˃ Ca for S1, Cu ˃ S ˃ Al ˃ N ˃ Fe ˃ Co ˃ Mn ˃ Cr ˃ Ti ˃ Cd ˃ K ˃ Ca for S2, and N ˃ Hg ˃ S ˃ Fe ˃ Cu ˃ Co ˃ P ˃ Ca ˃ Cr ˃ Mn ˃ Ti ˃ Mg for S3. it is concluded that drinking such water could provide a long-term health risk.</p>

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Diagnosis of pollutants in water utilizing analysis of laser-induced emission

  • 期刊论文

  • 发表日期：

    2025年1月18日

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  • Ekhlas Jabir Mahmood,
  • Mithaq Muter Mehdy Al-Sultani

摘要

Water pollution is a major issue nowadays, particularly with regard to heavy metal pollution. Laser Induced Breakdown Spectroscopy (LIBS) technology allows for the quick, in-situ, and real-time analyzing of water samples with little sample preparation and analysis without the need for additional chemical reagents. Here, with three water samples taken from contaminated surface water sources in Iraq, Calibration Free LIBS Analysis was used to diagnose the contaminants in the water both qualitatively and quantitatively. The results showed that the atomic lines of macronutrients (N, K, Ca, Mg), hazardous metals (Hg, Pb, Cd, Fe), and micronutrients (Ti, Cr, Co) are present in the recorded spectra. The discovered elements’ measured concentration in the river water displays the following trend: Mn ˃ S ˃ Fe ˃ N ˃ Co ˃ Ti ˃ Ni ˃ Cr ˃ Ca for S1, Cu ˃ S ˃ Al ˃ N ˃ Fe ˃ Co ˃ Mn ˃ Cr ˃ Ti ˃ Cd ˃ K ˃ Ca for S2, and N ˃ Hg ˃ S ˃ Fe ˃ Cu ˃ Co ˃ P ˃ Ca ˃ Cr ˃ Mn ˃ Ti ˃ Mg for S3. it is concluded that drinking such water could provide a long-term health risk.