Open Access Vol. 13, No. 2, pp. 73-87, June 2019 doi: https://doi.org/10.5572/ajae.2019.13.2.073 ISSN (Online) 2287-1160, ISSN (Print) 1976-6912 Research Article Measurements on Stationary Source Emissions and Assessing Impact on Ambient Air Quality around Two Indian Refineries Deepanjan Majumdar*, Anil Bhanarkar1), Ashok Gangadhar Gavane1), Chalapati Rao1) ABSTRACT Emissions of particulate matter (PM), SO2 and NO2 from stationary sources Kolkata Zonal Centre, CSIR-National and their concentration along with benzene and CO in ambient air around two Indian Environmental Engineering Research refineries were studied. Prediction of ground level concentration (GLC) of SO2, NO2 and Institute (CSIR-NEERI), i-8, Sector C, -3 EKDP, EM Bypass, Kolkata -700107, India PM was made by dispersion modeling. In Refinery 1, highest SO2 emission (646 mg Nm ) 1) Air Pollution Control Division, were detected in Sulphur Recovery Unit while NOx emissions ranged from 57.8 to 445.0 -3 CSIR-National Environmental mg Nm , respectively from various units. In Refinery 2, highest SO2 emission (935 mg Engineering Research Institute -3 Nm ) was observed from Utility Boiler while NO2 emissions ranged from 13 to 235 mg (CSIR-NEERI), Nehru Marg, -3 Nagpur - 440 020, India Nm . Above emissions were within the stipulated emission standards prescribed by Cen- tral Pollution Control Board of India. Further, ambient concentrations of the above in the *Corresponding author. vicinity of these refineries were below their prescribed national ambient air quality stan- Tel: +91-33-24421988 E-mail:
[email protected] dards. Air quality in terms of air quality index (AQI) was moderate or good at the study sites.