India, Feb. 9 -- Delhi's air quality improved on Sunday, with the 24-hour average Air Quality Index (AQI) recorded in the 'moderate' category at 189 at 4 pm, according to data from the Central Pollution Control Board (CPCB). This came after three consecutive days of 'poor' air, with the average AQI on Saturday recorded at 227.

However, Air Quality Early Warning System (AQEWS) forecast said that this improvement is temporary, with the AQI expected to drop to the 'poor' category in the coming week.

"The air quality is likely to be in the 'poor' category from February 9 to 11, with similar conditions expected over the next six days. Wind speeds will decrease, with northeasterly winds of up to 5 kmph after Monday evening," the AQEWS bulleti...