GAW Report No. 205 - IGAC Project

CHAPTER 3 - ASIAEmissions inventory for Delhi, IndiaFor the area covering the NCR of Delhi an emissions inventory that reflects the trends andsources observed in 2010 is under development, including all key species – PM, SO 2 , NO X , BC, CO,and VOCs, and covering the primary sources – transport (especially passenger travel), industrialclusters, power plants, residential fuel use for cooking and heating (including biomass), generatorsets (in households, industries, cinemas, institutions, hospitals, hotels, apartment buildings, andfarm houses) and garbage burning (especially for the areas where the waste collection efficienciesare small) [Guttikunda, 2010b].The urban inventory is further segregated spatially (Figure 20) to allow for diurnal andgeographical variations among all the sectors. For this inventory, data was collected from manysources – including surveys conducted by local agencies, such as Center for Road ResearchInstitute on traffic density on main corridors, CPCB on the industrial clusters in NCR, and fuel usagefor cooking and heating in the residential sector by the project team. The inventory presented inFigure 20 is updated to reflect the consumption patterns in 2010.A summary of the emissions inventory is presented in Table 4, segregated into majorsectors. The largest sectors are transport and power plants. However, due to the release of airpollutants at higher altitudes, the pollution from the power plants is felt less than the low lyingemissions from vehicle exhaust, waste burning in the residential areas, low stack emissions fromindustries, and fuel (fossil and biomass) for residential cooking.The emissions inventory is maintained in a geo-referenced system to further analyze thevulnerable areas, residential vs. industrial, hot spots for the monitoring air pollution, transportcorridors, venue locations and the Games Village (specific product for the 2010 CWG). Themodel-ready emission inventory also includes diurnal cycles for the transport sector emissions todistinguish between rush and non-rush hours for all modes, operational hours for the industrialsector, and cooking and heating hours for the domestic sector.This emission inventories are now in use for dispersion modelling, as part of air qualityforecasting for Delhi, including scenario analysis for future projections. The “Clean Air for Delhi2010 and beyond” project is funded by the Government of France under their FASEP bilateral funds;implemented by Aria Technologies SA and Leosphere SA (Paris, France), in technical collaborationwith the Central Pollution Control Board (CPCB), Delhi, India. The analysis results will be presentedin 2011.Figure 20 - Distribution mechanisms utilized for urban scale emissions. (IND = industries; PP = power plants; DOM =domestic; TR = transport; RD = road dust; WB = waste burning; CON = construction activities;BK = brick kilns; GS = generator sets)82