Source apportionment of VOCs at the petrol pumps in Kolkata, India; exposure of workers and assessment of associated health risk
Ambient air quality at five busy petrol pumps in Kolkata, India is monitored for mono-aromatic hydrocarbons and carbonyls. Among the measured volatile organic compounds, toluene and formaldehyde were the most abundant. Source apportionment using chemical mass balance identified exhaust from roadway and refueling as the major sources.