000000303 001__ 303
000000303 005__ 20260312144028.0
000000303 0247_ $$2DOI$$a10.6083/M4TX3CBR
000000303 037__ $$aETD
000000303 245__ $$aDevelopment and application of thermodynamic models of chemical equilibrium in multi-phase organic/electrolyte/water mixtures for prediction of atmospheric organic particulate matter levels
000000303 260__ $$bOregon Health and Science University
000000303 269__ $$a2008
000000303 336__ $$aThesis
000000303 502__ $$bPh.D.
000000303 520__ $$aThis dissertation advances the modeling of particulate matter formation in atmospheric aerosols containing organic compounds, inorganic salts, and water. A thermodynamic framework is developed that allows unrestricted gas–particle partitioning and liquid–liquid phase separation, supported by X‑UNIFAC.2, an extended activity‑coefficient model incorporating middle‑range ionic interactions. Model predictions show good agreement with chamber measurements of secondary organic aerosol formation. The work further extends the two‑product SOA model to account for humidity effects, water uptake, activity coefficients, molecular weight variation, and phase separation. Together, these improvements enhance the physical realism and predictive capability of aerosol models used in atmospheric chemistry.
000000303 540__ $$fCC BY
000000303 542__ $$fIn copyright - single owner
000000303 650__ $$aElectrolytes$$018291
000000303 650__ $$aParticulate Matter$$037192
000000303 650__ $$aAerosols$$014327
000000303 650__ $$aThermodynamics$$026929
000000303 650__ $$achemical equilibrium
000000303 6531_ $$asecondary organic aerosols
000000303 6531_ $$aatmospheric particulate matter
000000303 6531_ $$aactivity coefficients
000000303 6531_ $$aatmospheric aerosols
000000303 691__ $$aOGI School of Science and Engineering$$041365
000000303 692__ $$aDepartment of Environmental and Biomolecular Systems$$041414
000000303 7001_ $$aChang, Elsa$$uOregon Health and Science University$$041354
000000303 7201_ $$aPankow, James$$uOregon Health and Science University$$041354$$7Personal$$eAdvisor
000000303 8564_ $$97da3f0c1-2133-4338-aee8-0d08d8670431$$s3361783$$uhttps://digitalcollections.ohsu.edu/record/303/files/303_etd.pdf$$ePublic$$2d0239c6010ac4c51a9af61cf75bd7850$$31
000000303 905__ $$a/rest/prod/j3/86/06/94/j3860694x
000000303 909CO $$ooai:digitalcollections.ohsu.edu:303$$pstudent-work
000000303 956__ $$aGet Accessible Copy$$uhttps://ohsu.libwizard.com/f/requestaccessibledocument
000000303 980__ $$aTheses and Dissertations