New Delhi, Nov. 10 -- Delhi's air quality showed a marginal improvement on Tuesday, with the city's overall Air Quality Index (AQI) settling at 307 in the 'very poor' category at 7 am, against the severe pollution levels recorded at several monitoring stations on Monday, even as the India Meteorological Department (IMD) forecast mist and shallow fog during morning hours for the next five days.

With minimum temperatures hovering between 14 and 17 degrees Celsius and no significant change expected in the coming week, stagnant atmospheric conditions could continue to pose challenges for pollution dispersion.

The improvement comes after a sharp post-Diwali deterioration, when multiple monitoring stations across the national capital recorded A...