Delhi's air quality deteriorates to 'very poor' category

New Delhi: Delhi's air quality for the first time this season deteriorated to 'very poor' category with several areas in the national capital nearing towards severe levels of pollution, according to authorities.

The overall Air Quality Index (AQI) of Delhi was recorded at 309, according to a data of the Centre-run System of Air Quality Forecasting and Research.

An AQI between 0 and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor' and that between 401 and 500 is categorised as 'severe'. On Wednesday, Anand Vihar recorded an AQI of 380, Dwarka Sector 8 registered AQI of 376, ITO recorded 295 and Jahangirpuri recorded an AQI of 349, Rohini an AQI of 353, according to the Central Pollution Control Board (CPCB) data.