AAAR 37th Annual Conference October 14 - October 18, 2019 Oregon Convention Center Portland, Oregon, USA
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William G. Tsui, Ph.D. Candidate and Desired Area: Government or Industry
WILLIAM TSUI, Columbia University
Abstract Number: 872 Working Group: Meet the Job Seekers
Abstract I am a Ph.D. candidate at Columbia University in the Department of Chemical Engineering expected to graduate by May 2020. Currently, I am primarily looking for positions in government or in industry with a slight preference for the northeast U.S., although geographical location is certainly not a deal-breaker for me.
My Ph.D. work consists of two main projects: (1) modeling aqueous secondary organic aerosol (SOA) production from photosensitizers, and (2) examining the impact of aerosol-cloud cycling on aqueous SOA formation. Both of these projects are modeled using GAMMA (Gas-Aerosol Model for Mechanism Analysis), an atmospheric photochemical box model developed by the McNeill group with coupled gas and detailed aqueous phase chemistry. In the first project, laboratory studies of imidazoles and humic-like substances acting as photosensitizers in aqueous aerosols were modeled in GAMMA and scaled to atmospheric conditions to consider their importance in ambient processes. In the second project, isoprene epoxydiol SOA and organic acid formation in both cloud water and aqueous aerosol was quantified in GAMMA using ambient conditions from Whiteface Mountain and the effect of cycling between the two aqueous regimes on SOA production modeled. I hope to expand my knowledge of atmospheric models and to apply my experience in computational modeling of atmospheric aerosols to large-scale and multidimensional models as I begin my career in the aerosol field.