India, Jan. 21 -- Delhi's air quality remained "very poor" on Wednesday, even as shallow to moderate fog enveloped isolated parts of the city and the minimum temperature rose 0.2degC above the normal to 7.7degC. The minimum temperature is expected to be around 9-11degC by Friday and then drop to 6-8degC over the weekend again.

An Air Quality Index (AQI) of 339 (very poor) was recorded at 8 am on Wednesday, compared to the 24-hour average of 354 (very poor) at 4pm on Tuesday, when Delhi's worst air streak for the month since 2021 ended.

The Commission for Air Quality Management (CAQM) in the National Capital Region and Adjoining Areas revoked curbs under Stage 4 of the Graded Response Action Plan as the air quality improved.

The Air Qua...