Inventorization of direct and embodied emissions of trace gases and air pollutants from different sectors in Indian mega-city: Delhi

Indian mega city, Delhi has witnessed a rapid growth in population and urbanization during last few decades. The quality of air has affected due to rapid urbanization. As a step in this direction, efforts have been initiated to develop emission inventories of direct and embodied emission of pollutants from different sectors in Delhi. This paper presents the emission estimates of direct and embodied emission of pollutants like CO2, CO, CH4, HC and NOx for Delhi. Sector wise emission inventory of pollutant due to the consumption of energy products (viz. Gasoline, Diesel and Coal), traditional biomass, enteric fermentation, paddy fields and waste sector have been estimated from the year 1990 to 2005 in Delhi. The present study indicate that both direct and embodied emission are responsible for the air quality degradation. The increasing embodied emissions with time from energy sector and industrial sector indicate, rapid urbanization and development.