New Delhi: The national Capital's air quality was recorded in the 'moderate' category on Tuesday, while a government forecasting agency said it is likely to turn 'poor' by Friday.
Delhi recorded a 24-hour average air quality index (AQI) of 177, which falls in the 'moderate' category.
"Favourable ventilation condition is likely to keep Delhi's AQI in the 'moderate' category for the next two days," the System of Air Quality and Weather Forecasting and Research (SAFAR) said.
However, it said, the late withdrawal of monsoon and associated stagnant winds are likely to influence Delhi's air quality negatively by the weekend.
By October 2, the air quality is likely to slip to the "lower end of the poor category", SAFAR said.