Bioaccessibility, release kinetics, and molecular speciation of arsenic and lead in geo-dusts from the Iron King Mine Federal Superfund site in Humboldt, Arizona

Nazune Menka, Rob Root, Jon Chorover

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Mine tailings contain multiple toxic metal(loid)s that pose a threat to human health via inhalation and ingestion. The goals of this research include understanding the speciation and molecular environment of these toxic metal(loid)s (arsenic and lead) as well as the impacts particle size and residence time have on their bioaccessibilty in simulated gastric and lung fluid. Additionally, future work will include smaller size fractions (PM10 and PM2.5) of surface mine tailings, with the goal of increasing our understanding of multi-metal release from contaminated geo-dusts in simulated bio-fluids. This research is important to environmental human health risk assessment as it increases the accuracy of exposure estimations to toxic metal(loid)s.

Original languageEnglish (US)
Pages (from-to)23-27
Number of pages5
JournalReviews on Environmental Health
Volume29
Issue number1-2
DOIs
StatePublished - 2014

Fingerprint

Iron mines
Arsenic
Dust
Poisons
Iron
Metals
Kinetics
Tailings
health risk
risk assessment
threat
Fluids
Environmental Health
Health risks
health
Research
Particle Size
Risk assessment
Inhalation
Stomach

Keywords

  • Arsenic
  • Geo-dust
  • Human health
  • Lead
  • Mine tailings
  • Simulated gastric fluid (SGF)
  • Simulated lung fluid (SLF)

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Pollution
  • Health(social science)

Cite this

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abstract = "Mine tailings contain multiple toxic metal(loid)s that pose a threat to human health via inhalation and ingestion. The goals of this research include understanding the speciation and molecular environment of these toxic metal(loid)s (arsenic and lead) as well as the impacts particle size and residence time have on their bioaccessibilty in simulated gastric and lung fluid. Additionally, future work will include smaller size fractions (PM10 and PM2.5) of surface mine tailings, with the goal of increasing our understanding of multi-metal release from contaminated geo-dusts in simulated bio-fluids. This research is important to environmental human health risk assessment as it increases the accuracy of exposure estimations to toxic metal(loid)s.",
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AU - Root, Rob

AU - Chorover, Jon

PY - 2014

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