KEYNOTE Application of global high-resolution emission inventories of air pollutants from combustion sources and their application

A set of global emission inventories were compiled for major air pollutants including primary particulate matter (TSP, PM10, PM2.5), BC, OC, SO2, NOx, polycyclic aromatic hydrocarbons (PAHs), and Hg. Spatial resolution of 0.1... [ view full abstract ]

A set of global emission inventories were compiled for major air pollutants including primary particulate matter (TSP, PM10, PM2.5), BC, OC, SO2, NOx, polycyclic aromatic hydrocarbons (PAHs), and Hg. Spatial resolution of 0.1 by 0.1 degree was achieved by using sub-national fuel data instead of national data to reduce spatial bias caused by population density based dissegregation. A spatial-for-time substitution method was developed to test a hypothesis that spatial and temporal variations of energy consumption are affected by the same factors. The method was use to simulate monthly and daily variation of the energy consumption and emissions. Most importantly, the inventories include 81 individual sources, which is useful for providing policy makers with critical information for abatement strategy development.
The inventories were used to model atmospheric transport of various pollutants. For example, exposure of global population to ambient air benzo(a)pyrene was simulated and lung-cancer morbidity induced by the exposure were evaluated. Similarly, health risk of inhalation exposure to ambient PM2.5 was assessed on global scale. A simulation was conducted to distinguish influences of emissions and meteorological conditions on ambient air PM2.5 contamination.