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From a manuscript draft courtesy of Bill Malm, National Park Service

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Presentation on theme: "From a manuscript draft courtesy of Bill Malm, National Park Service"— Presentation transcript:

1 From a manuscript draft courtesy of Bill Malm, National Park Service
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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