New Delhi, Oct 14 (PTI) Signalling a return of the ‘pollution season’ as winter approaches, the air quality in Delhi has dipped into the ‘poor’ category after nearly three months, with the Air Quality Index (AQI) recorded at 211.

The last time Delhi recorded an AQI in the Poor category was on July 11, according to the Delhi Pollution Control Board (DPCC) data.

Since then, the city experienced some improvement due to the monsoon rain, but with changing weather patterns and the onset of cooler temperatures, pollution levels are beginning to rise again. Show Full Article

As per the CPCB, an AQI between zero and 50 is considered “good”, 51 to 100 “satisfactory”, 101 to 200 “moderate”, 201 to 300 “poor”, 301 to 400 “very poor” and 401 to 500 “severe”.

Delhi struggles with high levels of air

See Full Page