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Human Risk Due to Radon and Heavy Metals in Soil.

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Soil in Saudi Arabia poses human health risks from high heavy metal and radon concentrations. Elevated Nickel and Chromium levels present a significant risk to children in the Jazan region.

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Area of Science:

  • Environmental Science
  • Public Health
  • Geochemistry

Background:

  • Investigated human health risks associated with soil contaminants.
  • Focused on radon and heavy metals (HM) in the Jazan region, Saudi Arabia.

Purpose of the Study:

  • To assess human health risks from soil radon and heavy metals.
  • To determine the concentrations of various elements and radon in soil samples.

Main Methods:

  • Collected soil samples from 10 locations in 2017.
  • Analyzed elements using ICP-OES and radon using SSNTDs.

Main Results:

  • Aluminum (Al) posed the highest risk; Cadmium (Cd) posed the lowest.
  • Maximum radon concentration (381.05 Bq/m³) found in El-Mazab area, leading to high effective doses.
  • Hazard Index exceeded permissible levels for children due to Nickel (Ni) and Chromium (Cr).

Conclusions:

  • Heavy metal concentrations exceeded limits in some areas due to human activities like waste disposal and agricultural practices.
  • Soil porosity facilitates radon dispersion into the atmosphere.
  • Significant health risks, particularly for children, were identified due to elevated HM and radon levels.