India, Oct. 23 -- Delhi's air quality remained in the poor category as the minimum temperature was recorded at 19degC on Friday. The air quality index (AQI) stood at 223 (8am).

Out of 57 air quality monitoring stations, 19 recorded air quality in the moderate zone while the rest were in the poor category. An AQI between 201 and 300 is classified as poor under the Central Pollution Control Board's scale.

The air quality reading comes amid the seasonal deterioration in pollution levels amid impending onset of winter and meteorological conditions favouring the accumulation of pollutants.

According to the Air Quality Early Warning System, Delhi's air quality is likely to remain poor till October 25. The outlook for the following six days a...