Project Reviewers

Dr. Gayle Hagler (Associate Director at US Environmental Protection Agency) has over 15 years of research experience involving air monitoring, instrumentation, data processing and algorithm development, and data visualization. Her experience has included serving as a subject matter expert domestically and internationally, science communications to a variety of audiences, and educational outreach. Dr. Hagler received a doctorate in environmental engineering from the Georgia Institute of Technology in Atlanta, GA. Her research interests at EPA include advancing monitoring technologies, data visualization approaches, and understanding complex spatiotemporal air pollution trends. Dr. Hagler also participates in EPA’s educational outreach in science, technology, engineering, and mathematics (STEM). She was a 2016 recipient of the Arthur S. Flemming award for outstanding achievement in the federal government.


Dr. Kenneth Leung (Assistant Director (Air Policy) at Environmental Protection Department Hong Kong SAR) is skilled in Air Quality Modelling, Sustainable Development, Environmental Impact Assessment, Regional Air Quality Transportation, Emission Inventories, Environmental Awareness, and Climate Change. He is responsible for air science matter, management of the air quality monitoring network, air quality modelling and forecasting, compilation of emission inventory, collaboration with Guangdong Provincial Government on regional air quality management, carrying out air quality researches for the Greater Bay Area and setting emission reduction targets for Hong Kong.


Dr. Jonathan Pleim’s (Research Physical Scientist, US Environmental Protection Agency) core expertise is in development of atmospheric models for simulation of meteorology and air quality. He has been involved with the development meteorology models such as MM4, MM5, WRF and now MPAS; and air quality (AQ) models such as ADOM, RADM, and CMAQ. Jonathan has developed an atmospheric boundary layer model called the Asymmetric Convective Model version 2 (ACM2) and the land-surface model called the PX-LSM which are both widely used in WRF and in CMAQ. He has also developed dry deposition and bi-directional surface flux models for CMAQ and been involved in many other physics and dynamics components of these models. As Chief of the Atmospheric Model Development Branch Jonathan oversees the continued development of CMAQ and the WRF-CMAQ coupled meteorology and AQ modeling system and the new development of the Next Generation AQ model.



Dr. Eleanne van Vliet (Staff Scientist at Health Effects Institute) received her MPH and DrPH in environmental health from Columbia University’s Mailman School of Public Health. She has published on neonatal exposures and alternatives to phthalates in medical devices, and designed and conducted exposure monitoring field studies to investigate health effects resulting from household air pollution in Africa. As director of research for As You Sow, an environmental health nonprofit organization, she collaborated with state agencies and manufacturers to reduce people’s exposure to toxic chemicals in consumer products in accordance with California’s Safe Drinking Water and Toxic Enforcement Act of 1986. Van Vliet previously worked in environmental conservation and policy at the Jane Goodall Institute and Worldwide Fund for Nature. Most recently, as a postdoctoral scholar at the University of Southern California, she worked on improving methods to assess personal exposures to air pollution mixtures in various populations, including pregnant women and children.


Dr. Alfred Yu (Senior Environmental Protection Officer (Air Science) at Environmental Protection Department Hong Kong SAR)