How metals in mine dust change and become available to the body
Transformation of metal(loid)-bearing particulate matter and associated impacts on bioaccessiblity
Researchers are looking at how toxic metals in dust from mine tailings change over time and how easily those metals can become available to people who breathe or touch the dust, especially residents near mine sites.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Arizona NIH-funded |
| Lab location | 1 site (Tucson, United States) |
| Project ID | NIH-11375932 on NIH RePORTER |
What this research studies
This project collects mine tailings and the airborne dust that comes from them, then studies how particles weather and break into smaller pieces that can travel in air. Scientists analyze what chemical forms the metals take on particle surfaces and how those forms change with exposure to air, water, and biological fluids. Lab tests mimic breathing and digestion to estimate how much of the metal could be taken up by the body, and measurements of reactive oxygen species show potential for causing tissue damage. The team combines field sampling near mine sites with laboratory chemistry to link environmental processes to potential human exposure.
Who could benefit from this research
Good fit: Ideal candidates are people who live, work, or spend time near mine tailings or other metal-contaminated dust sources and are concerned about exposure.
Not a fit: People with no history of exposure to mine tailings or who live far from mining-impacted areas are unlikely to benefit directly from participation.
Why it matters
Potential benefit: If successful, the work could help reduce health risks by guiding cleanup, exposure limits, and protections for communities near mine waste.
How similar studies have performed: Previous environmental and bioaccessibility studies have shown that small particles can carry toxic metals and pose exposure risks, but linking particle weathering and aerosolization to human bioaccessibility is still emerging.
Where this research is happening
Tucson, United States
- University of Arizona — Tucson, United States (Active)
Researchers
- Principal investigator: Chorover, Jon D — University of Arizona
- Study coordinator: Chorover, Jon D
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.