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Case Study for Forest Fire Episode

Case Study for Forest Fire Episode. 16 Wrap sites 20% worst case days with OC dominant. OC above the 95% Percentile Except REDW1. OC and EC concentrations on July 10 were more than ~50% higher than the average of July 1999. The ratios are similar for the sites in the same region.

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Case Study for Forest Fire Episode

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  1. Case Study for Forest Fire Episode 16 Wrap sites 20% worst case days with OC dominant

  2. OC above the 95% Percentile Except REDW1

  3. OC and EC concentrations on July 10 were more than ~50% higher than the average of July 1999. The ratios are similar for the sites in the same region.

  4. From WA and OR

  5. From CA From CA and UT

  6. From UT

  7. From Canada

  8. OC/EC is relatively higher during the forest fire episode

  9. Relationship between nonsoil K and OC/EC on July 10, 1999

  10. OC/EC concentrations are weakly related to the nonsoil K concentrations in BRID (Bridger Wilderness, WY) during the year 1999

  11. Another Episode – Larger Area is Influenced

  12. Relationship between nonsoil K and OC/EC on August 2, 2000

  13. Relatively good correlations have been found between OC/EC concentrations and nonsoil K concentrations in MOZI1 (Mount Zirkel Wilderness, CO) during the year 2000

  14. Summary • Forest fire can be regional phenomenon – one fire can influence multiple sites, and one site may be influenced by multiple fire events. • OC concentrations on July 10 were more than ~50% higher than the average of July 1999. The increase ratios are similar for the sites in the same region. • OC/EC is relatively higher during the forest fire episode – forest fire emits more OC than EC compare with other anthropogenic sources. • OC and K concentrations are relatively higher during the forest fire episodes, and some correlation may be found between them. • Relatively good correlations have been found between OC/EC concentrations and nonsoil K concentrations in MOZI1 (Mount Zirkel Wilderness, CO) during the year 2000 • Try to find measurements of CO – one important indicator of biomass burning, in the surrounding regions.

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