Delhi's AQI improves to 'poor' category for first time since Nov 10

Delhi's air quality improved to the 'poor' category on Sunday, with the Air Quality Index (AQI) settling at 290 at 4 pm, PTI reported. The city's air quality had remained in the 'very poor' category since November 11, it added. The last time Delhi recorded a 'poor' AQI was on November 10, when the index stood at 299.