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Coarse Particle Speciation at Selected Locations in the Continental U.S.

Coarse Particle Speciation at Selected Locations in the Continental U.S. From a manuscript draft courtesy of Bill Malm, National Park Service. IMPROVE Coarse PM Speciation Study Design. Sites studied Bondville, IL Bridger, WY Brigantine, NJ Grand Canyon, AZ Great Smokies, TN

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Coarse Particle Speciation at Selected Locations in the Continental U.S.

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  1. Coarse Particle Speciation at Selected Locations in the Continental U.S. From a manuscript draft courtesy of Bill Malm, National Park Service

  2. IMPROVE Coarse PM Speciation Study Design • Sites studied • Bondville, IL • Bridger, WY • Brigantine, NJ • Grand Canyon, AZ • Great Smokies, TN • Mount Rainier, WA • San Gorgonio, CA • Sequoia, CA • Upper Buffalo, AR • 12-18 months of data, varies by site, samples every 3 days • Added PM10 Carbon and Nitrate channels, same analysis method as PM2.5 • Analyzed PMcoarse speciation as the species difference PM10 minus PM2.5

  3. Reconstructed Coarse & Fine PM Mass versus Gravimetric Mass

  4. Monthly Coarse Mass Speciation Total versus Monthly Coarse Mass long-term pattern

  5. Speciation of Coarse Mass Fraction

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