Delhi got some respite from pollution on Sunday as the air quality in the city improved to 'poor' from the 'severe' category.

The national capital had witnessed a dip in pollution level on Saturday morning though the air quality in the city remained in the 'severe' category.

The air quality index (AQI) in Delhi at 9 am on Sunday stood at 254 against an AQI of 412 at the same time a day earlier. The AQI in Faridabad, Ghaziabad, Greater Noida, Noida and Gurgaon was 228, 241, 192, 224 and 193, respectively.

An AQI between 201 and 300 is considered 'poor', 301-400 'very poor' and 401-500 'severe'.

The national capital recorded a minimum temperature of 16 degrees Celsius while humidity was 71 per cent.

The weatherman has forecast mainly clear skies for the day with the maximum temperature likely to hover around 28 degrees Celsius.

Delhi was blanketed with a thick smog for four consecutive days till Friday as unfavourable weather hampered dispersion of pollutants.

On Saturday, the air quality index stood at 357 at 4 pm.