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The Spatial Distribution of Ozone in the Mount Rainier National Park Region


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Part 1 - Spatial Patterns of Ozone Exposure inMount Rainier National Park: Few data exist ontropospheric ozone concentrations in rural andwildland areas of western Washington, U.S.A. Wemeasured tropospheric ozone in Mount RainierNational Park and the Puget Sound region ofWashington using electronic analyzers and passivesamplers during the summers of 1994 and 1995.Electronic analyzers recorded hourly ozoneconcentrations from five locations between Seattleand Mount Rainier. Ozone concentrations generallyincreased with distance from Seattle, with maximumhourly concentrations recorded at Enumclaw (319 melevation, 50 km SE of Seattle). Paradise (1,650m elevation, 100 km SE of Seattle) had the highestmonthly mean concentration of all sites [...]


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1) Characterize weekly ambient ozone exposuresusing passive ozone samplers located across anelevation gradient within Mount Rainier NationalPark. Identify areas of high exposure during twosummers of monitoring. 2) Determine the spatialdistribution of ozone downwind of the Puget Soundurban core using electronic analyzers. Comparediurnal exposure profiles of low and highelevation sites located between Seattle andParadise (Mount Rainier National Park) 3)Document the foliar responses of several commonspecies exposed to moderate levels of ozone inopen-top and enclosed fumigation chambers.Contribute to a foliar-symptom guidebook for fieldidentification and vegetation monitoring

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