Transportation accounts for approximately one-third of global greenhouse gas emissions. In urban environments, road transportation is a major contributor to air pollution. However, the extent of its contribution varies significantly across cities, influenced by factors such as traffic patterns, fleet composition, meteorological conditions, and topography.
In this Science Talk, Dr. Hosseini will highlight a range of research methodologies and findings aimed at quantifying TRAP emissions and their contribution to urban air quality. Approaches include emission inventory development, integrated chemical transport modeling, source apportionment analysis, portable emissions measurement systems (PEMS), laboratory-based testing, and remote sensing. Case studies from cities including Tehran (Iran), Edmonton, and Vancouver (Canada) will be presented to illustrate the variability in TRAP sources and impacts. These insights inform the need for region-specific decarbonization strategies that not only reduce greenhouse gas emissions but also deliver significant co-benefits for urban air quality.
Speaker
Dr. Vahid Hosseini
