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Analysis of Aerosols for Mining Sites in Southern Arizona

Explore aerosol composition in Arizona mining areas, focusing on known substances like arsenic and lead and investigating unknowns like hydrocarbons. Discover sources, conduct chemical analysis, and discuss clean-up efforts.

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Analysis of Aerosols for Mining Sites in Southern Arizona

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  1. Analysis of Aerosols for Mining Sites in Southern Arizona Mary Jones NASA Space Grant Symposium Phoenix, AZ April 18, 2015

  2. Background • Identification • Research • Clean-Up Iron King Site, Dewey-Humboldt, AZ.

  3. Project Overview • Aerosols: fine particles in the air • Organic: Carbon-Containing molecules • Known Substances of Concern: • Arsenic and Lead • Unknown Substances: • Hydrocarbons • Natural (Levoglucosan) • Anthropogenic (Benzothiazole)

  4. Sources of Aerosols Mining Tailings Tailings mountain, Hayden, AZ Ray Copper Mine, Hayden, AZ

  5. Sites Iron King (Dewey-Humboldt) Hayden- Winkelman PAS (U of A, Tucson) Green Valley

  6. Chemical Analysis Total Suspended Particulate samplers Quartz fiber filters Solvent Extraction: Polar vs. Nonpolar Analysis using GC/MS View from Hayden HS, Hayden, AZ Gas Chromatography and Mass Spectrometry

  7. Interpretation Levoglucosan Standard PAS Roof Sample

  8. Results PAS Iron King Green Valley Hayden- Winkelman

  9. Thank you! Special Thanks To: Kyle Rine, Dr. E. Betterton, Dr. E. Saez, Chad Smith, Matt King, Dr. M. Stovern, Solianna Herrera, Victoria Raught, Sarah Warren, Sandy Holford, and Susan Brew.

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