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Position: Associate Specialist Phone: 916.444.6666, X-112 Fax: 916.444.8373 Email: Click Here Résumé: Click Here

■  Professional Profile

An Associate Specialist at Sierra Research, Dr. Liu is responsible primarily for air quality modeling and works regularly with regulatory air dispersion models, including AERMOD and ISCST3, meteorological datasets and preprocessors such as RAMMET, and statistical analysis software such as Statistical Analysis System (SAS). Responsibilities include air dispersion model analysis for Prevention of Significant Deterioration (PSD), Title V, and Environmental Impact Report (EIR) permit application for power plants, constructions, and other facilities in a variety of locations in Hawaii, California, and elsewhere, using EPA’s series of Gaussian dispersion models (SCREEN3, ISCST3, CTSCREEN, AERMOD, CALPUFF); identification and quantification of Particulate Matter (PM) to their sources using receptor modeling tools such as Positive Matrix Factorization (PMF) and Chemical Mass Balance (CMB); and California AB 2588 Health Risk Assessment using the CARB-specified health risk assessment program HARP (Hotspots Analysis and Reporting Program).

Dr. Liu has been working in the air quality field since 2000. He joined Sierra Research in 2006, following completion of post-doctoral work in environmental chemistry, where his research focused on the application of receptor modeling to identify sources of air pollution based on ambient monitoring results. He has B.S. degree in Analytical Chemistry and a M.S. degree in Environmental Science and Technology from Nan Kai University, Tianjin, P.R. China, and a Ph.D. in Environmental Chemistry from Clarkson University in New York, with concentrations in air quality monitoring and air quality modeling.