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Case Study for Forest Fire Episode
16 Wrap sites 20% worst case days with OC dominant
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OC above the 95% Percentile Except REDW1
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OC and EC concentrations on July 10 were more than ~50% higher than the average of July The ratios are similar for the sites in the same region.
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From WA and OR
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From CA From CA and UT
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From UT
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From Canada
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OC/EC is relatively higher during the forest fire episode
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Relationship between nonsoil
K and OC/EC on July 10, 1999
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OC/EC concentrations are weakly related to the nonsoil K concentrations in BRID
(Bridger Wilderness, WY) during the year 1999
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Another Episode – Larger Area is Influenced
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Relationship between nonsoil
K and OC/EC on August 2, 2000
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Relatively good correlations have been found between OC/EC concentrations and nonsoil K concentrations in MOZI1 (Mount Zirkel Wilderness, CO) during the year 2000
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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 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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