India, Dec. 27 -- Delhi's air quality remained "very poor" on Saturday morning as a shallow to moderate fog enveloped parts of the city, and the minimum temperature of 7.6degC was a degree above normal. The maximum temperature was expected to be around 21-23degC. The minimum and maximum temperatures were expected to remain in the same range for the next few days as a western disturbance influences the region.

The India Meteorological Department (IMD) issued a yellow alert for Sunday, warning people that moderate to dense fog might affect visibility in the early hours of the day.

An Air Quality Index (AQI) of 355 (very poor) was recorded at 9am on Saturday, compared to 332 at 4pm on Friday. The Air Quality Early Warning System (AQEWS) fo...