India, Nov. 4 -- The capital's air quality remained in the 'very poor' category for a third straight day on Monday, with favourable meteorological conditions facilitating some dispersion. The 24-hour average air quality index (AQI) stood at 309 (very poor) at 4 pm, when the Central Pollution Control Board (CPCB) released its daily national bulletin. It was 366 (very poor) at the same time on Sunday.

Forecasts show an approaching western disturbance is likely to lead to stagnation once again, with the air quality index (AQI) expected to touch 'severe' on Tuesday. This forecast was issued by the Early Warning System for Delhi (EWS) on Sunday, however, no updated forecast was issued on Monday.

The Decision Support System (DSS), which provi...