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dc.contributor.authorWallace, Ashley N.
dc.date.accessioned2018-05-31T22:07:38Z
dc.date.available2018-05-31T22:07:38Z
dc.date.issued2012-05
dc.identifier.urihttp://hdl.handle.net/11122/8469
dc.descriptionThesis (M.S.) University of Alaska Fairbanks, 2012en_US
dc.description.abstractDenali National Park and Preserve (DNPP) is a federally protected Class I visibility area in Alaska. The Regional Haze Rule in the U.S. Clean Air Act requires the visibility in all Class I areas to be 'pristine.' According to the EPA DNPP does not have `pristine' air. Therefore, the Alaska Department of Environmental Conservation conducted a 15-month study of particulate matter smaller than 2.5 micrometers (PM2.5) from March, 2008 through June, 2009 to identify the aerosol sources in DNPP. DRUM aerosol impactors collected aerosols at four sites (DNPP Headquarters, Trapper Creek, McGrath, and Lake Minchumina) around DNPP. The aerosol data underwent a series of analyses including: a seasonal analysis of elemental composition, an analysis of potential source regions as identified by the HYbrid Single-Particle Lagrangian Integrated Trajectory ectory (HYSPLIT) model, and Chemical Mass Balance (CMB) analyses to identify specific aerosol sources. These analyses show that the predominant sources of aerosols impacting DNPP during winter and spring lie outside of Alaska and during summer and fall are from outside and local sources. Outside sources include deserts in China and industry in Russia. Because many of the aerosols impacting DNPP are produced internationally, the visibility in DNPP cannot be restored without international collaboration.en_US
dc.language.isoen_USen_US
dc.subjectAtmospheric aerosolsen_US
dc.subjectAlaskaen_US
dc.subjectDenali National Park and Preserveen_US
dc.subjectDenali National Park and Preserve (Alaska)en_US
dc.titleThe transport of aerosols into Denali National Park and Preserveen_US
dc.typeThesisen_US
dc.type.degreemsen_US
dc.identifier.departmentDepartment of Chemistry and Biochemistryen_US
refterms.dateFOA2020-03-05T15:52:42Z


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