Emissions of VOCs at Urban Petrol Retail Distribution Centres in India (Delhi and Mumbai) |
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Authors: | Anjali Srivastava A E Joseph Ajit More Sunil Patil |
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Institution: | (1) National Environmental Engineering Research Institute (NEERI), Mumbai Zonal Centre, 89/B, Dr. A.B. Road, Worli, Mumbai, India |
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Abstract: | Air pollution has assumed gigantic proportion killing almost half a million Asians every year. Urban pollution mainly comprises
of emissions from buses, trucks, motorcycle other forms of motorized transport and its supporting activities. As Asia's cities
continue to expand the number of vehicles have risen resulting in greater pollution. Fugitive emissions from retail distribution
center in urban area constitute a major source. Petrol vapours escape during refueling adding pollutants like benzene, toluene,
ethylbenzene and xylene to ambient air. This paper discusses a study on fugitive emissions of Volatile Organic Compounds (VOC)
at some refueling station in two metropolitan cities of India, i.e., Mumbai and Delhi. Concentration of VOCs in ambient air
at petrol retail distribution center is estimated by using TO-17 method. Concentration of benzene in ambient air in Delhi
clearly shows the effect of intervention in use of petroleum and diesel fuel and shift to CNG. Chemical Mass Balance (CMB)
model is used to estimate source contributions. At Delhi besides diesel combustion engines, refueling emissions are also major
sources. At Mumbai evaporative emissions are found to contribute maximum to Total VOC (TVOC) concentration in ambient air. |
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Keywords: | CMB Delhi Mumbai petrol pump VOC |
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