Emission Inventorisation and Modelling of Non-Methane Volatile Organic Compounds from Petrol Distribution Centres in an Urban Area

摘要

Non-methane volatile organic compounds (NMVOCs) are associated with various respiratory, cardiovascular and cancerous diseases. Emission of NMVOCs from petrol distribution centres in urban areas is one of the major sources. This study focuses on the estimation of emission load of NMVOCs from petrol distribution centre in one of the metropolitan cities of India, i.e., Delhi city. It is estimated that approximately 3190 tone of NMVOCs are emitted every year from petrol pumps in Delhi city. Further, AERMOD has been used to simulate NMVOCs concentrations over Delhi city in three different seasons (winter, summer and post-monsoon). Further, AERMOD's predicted NMVOC concentration are compared with monitoring data at three different locations in Delhi cityfor winter period and observed satisfactory performance of AERMOD. It is observed that ambient NMVOCs concentrations exceed the NAAQS in Delhi city.