India, Feb. 12 -- Delhi's air quality remained in the higher end of the 'poor' category on Wednesday morning, improving marginally as wind speed began to pick up. The city also saw a rise in minimum temperature at 11.6degC, one notch above normal; it was 9.8degC a day earlier.

Delhi's average air quality index (AQI) stood at 259 (poor) at 8am on Wednesday. It was 293 (poor) at 4 pm on Tuesday, as per Central Pollution Control Board's (CPCB) 4pm bulletin. The AQI was 271 (poor) on Monday, 227 (poor) at 4pm on Sunday and 152 (moderate) on Saturday, data showed.

Forecasts by the Centre's Early Warning System for Delhi (EWS) show that AQI is likely to remain in the 'poor' range through Wednesday, but may possibly improve to 'moderate' by Th...