An emissions inventory of a region is a stock of all its pollution-emitting sources, such as vehicles, industries, power plants, road dust, construction dust, residential, diesel generator (DG) sets, biomass/waste burning, crematoria, and hotels. Developing an emissions inventory is a step in the bottom-up approach of apportioning sources. Apart from direct emissions estimates, emissions in these sectors are calculated by multiplying energy consumption with the emissions factor to derive the pollution per unit energy consumed. This information is an input to the dispersion model, which converts pollution estimates (mass/year) to ambient concentration (mass/volume). Ambient concentration is directly comparable to source apportionment estimated using receptor
modelling. These inventories contribute to source apportionment studies. Often, this drive pollution control decision making in the region by statutory agencies such as the Environment Pollution Prevention and Control Authority (EPCA), Central Pollution Control Board (CPCB), and other State Pollution Control Boards (SPCB).
Few studies compare emissions inventories across anthropogenic and combustion related emissions of air pollutants or analyze uncertainties in inventory measurement (input parameters). Therefore, the extent of uncertainty in source apportionment (output parameter) is unclear. In this note, I want a review paper with intense literature review and comparison of the emissions inventories for India.