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Emissions of particulate matter from prescribed fire in Georgia were sampled from an airplane and from various points on the ground. The source strength for the tire was determined, and an average emission factor for particulate matter of 10.3 g kg^-1 calculated from an analysis of four methods for determining emission factors. In one method, readings on plume cross sections were taken at different distances from the source with an integrating nephelometer. The relative humidity was above 55%, and correction factors were applied to the indicated nephelometer concentrations. The mass-to-bscat ratio decreased from 0.23 at 40% relative humidity to 0.14 at 90%. The total number of particles decreased by a factor of 2.6 from 0.8 km to 7.4 km downwind from the fire. For the 0.3to 0.5-um size range, the number of particles increased by a factor of 4 over the same distance.
Cataloging Information
- air quality
- fire management
- forest management
- Georgia
- particulates
- PM - particulate matter
- SFP - Southern Fire Portal
- smoke behavior
- smoke management
- smoke plumes
- state forests
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