Date of Release:
Jan 20 2016
The World Health Organisation (WHO) recently declared Delhi as the most polluted city in the world. Undoubtedly, it is so, as the data on various parameters of air quality index (AQI)—particulate matter (PM2.5 and PM10), oxides of nitrogen, sulphur, carbon monoxide and volatile organic compounds (VOCs)—brings out. Besides vehicular traffic of all types, there are other activities such as construction, burning of biomass, dust on the roads, cooking, industry, diesel generator sets, etc, which contribute to air pollution.