India, Dec. 17 -- Delhi's air quality marginally improved on Wednesday -- aided by strong winds, but remained in the 'very poor' category, even as shallow fog persisted in the region. The average air quality Index (AQI) stood at 328 at 8am on Wednesday - down from 354 at 4pm on Tuesday.

While the lowest visibility at Safdarjung was 900 metres on Wednesday, it was 1,100 metres (mist) at Palam, the India Meteorological Department (IMD) said, adding consistent winds of 7-10 km/hr were recorded in the early hours of the day too.

This meant operations were fairly smooth at Delhi's Indira Gandhi international (IGI) airport after two days of disrupted operations.

Winds up to 20 km/hr were recorded in the city on Tuesday, which led to some dis...