Emissions inventory of anthropogenic PM_2.5 and PM₁₀ in Delhi during Commonwealth Games 2010

Abstract

As part of the System of Air quality Forecasting and Research (SAFAR) project developed for air quality forecasting during the Commonwealth Games (CWG) - 2010, a high resolution Emission Inventory (EI) of PM₁₀ and PM_2.5 has been developed for the metropolitan city Delhi for the year 2010. The comprehensive inventory involves detailed activity data and developed for a domain of 70 km × 65 km with a 1.67 km × 1.67 km resolution covering Delhi and surrounding region using Geographical Information System (GIS) technique. The major sectors considered are, transport, thermal power plants, industries, residential and commercial cooking along with windblown road dust which is found to play a major role for Delhi environment. It has been found that total emissions of PM₁₀ and PM_2.5 including wind blown dust over the study area are found to be 236 Gg yr⁻¹ and 94 Gg yr⁻¹ respectively. The contribution of windblown road dust is found to be as high as 131 Gg yr⁻¹ for PM₁₀.