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Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
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Arsenic pollution sources.

Hemda Garelick1, Huw Jones, Agnieszka Dybowska

  • 1Department of Natural Sciences, School of Health and Social Sciences, Middlesex University, The Burroughs, London NW4 4BT, UK. h.garelick@mdx.ac.uk

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Summary
This summary is machine-generated.

Arsenic contamination in water and soil stems from natural geological sources and human activities like mining. Understanding arsenic

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Area of Science:

  • Environmental Science
  • Geochemistry
  • Toxicology

Background:

  • Arsenic is a naturally occurring element found in Earth's crust, present in numerous minerals.
  • Human exposure to arsenic occurs through various natural and anthropogenic pathways.
  • Arsenic contamination is a significant global health concern, particularly in drinking water.

Purpose of the Study:

  • To review the sources and pathways of arsenic contamination in the environment.
  • To discuss the geochemical processes influencing arsenic speciation and mobility.
  • To highlight the health risks associated with arsenic exposure.

Main Methods:

  • Literature review of geochemical and environmental studies on arsenic.
  • Analysis of arsenic occurrence in minerals, rocks, and water bodies.
  • Examination of anthropogenic activities contributing to arsenic pollution.

Main Results:

  • Arsenic contamination originates from both geological formations and human activities, notably mining.
  • Geochemical factors like pH and redox conditions dictate arsenic speciation and toxicity.
  • Geothermal activity and mining operations are significant contributors to arsenic release.

Conclusions:

  • Arsenic contamination is a complex environmental issue with diverse sources and mechanisms.
  • Effective management requires understanding arsenic's geochemical behavior and exposure routes.
  • Mitigation strategies are crucial to reduce health risks associated with arsenic exposure.