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Emission factors and the size distribution for smoke particles from prescribed fire are described from data collected by airborne sampling, surface sampling using towers, and combustion hood systems. Emission factors for particulate matter (g/kg) range from 4 to 16 for particles less than 2.5 micrometers, from 4 to 40 for particles less than 10.0 micrometers, and from 5 to 50 for particles measured without regard to particle size. The particle size distribution suggests that 40 to 95 percent of the mass of particulate matter consists of particles less than 2.5 micrometers in diameter. Particles larger than 2.5 but smaller than 10 micrometers make up less than 10 percent of the total mass. The rate of heat release has a significant effect on the size and mass of particles produced.
Cataloging Information
- air quality
- Arizona
- emission factors
- FERA - Fire and Environmental Research Applications Team
- fire management
- forest management
- Montana
- Nevada
- New Mexico
- Oregon
- particulate matter (PM) emissions
- particulates
- smoke management
- smoke properties
- Washington
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