Air quality remains very poor in Delhi

New Delhi: Delhi's air quality remained in the very poor category Wednesday, though authorities expressed hope that a slight improvement may be observed in the next few days due to increased wind speed.

The Central Pollution Control Board recorded an overall air quality index (AQI) of 332, which falls in the "very poor" category. An AQI between 201 and 300 is considered poor, 301 and 400 very poor and 401 and 500 is severe.

Mundka recorded severe air quality while 24 areas reported very poor air quality. Eight areas recorded poor air quality, according to the CPCB.

The overall PM2.5 (fine particulate matter in the air with a diameter of less than 2.5 micrometre) level was recorded at 186 and the PM10 level at 360, it said.

In NCR, Ghaziabad recorded worst air quality in severe category at an AQI of 404. Faridabad and Noida recorded very poor air quality while Gurgaon recorded poor air quality.