Delhi's AQI stood at 340 at 9 am, up from 301 recorded at the same time on Monday, according to the Central Pollution Control Board's (CPCB) data.
Out of 39 stations, two -- Chandni Chowk and Vivek Vihar-- slipped into the severe category with readings above 400, according to data from the CPCB's Sameer app.
As per CPCB standards, an AQI between 0 and 50 is considered 'good', 51-100 'satisfactory', 101-200 'moderate', 201-300 'poor', 301-400 'very poor', and 401-500 'severe'.
On the weather front, Delhi's minimum temperature settled at 9.6 degrees Celsius, 0.1 degrees above normal, the IMD said.
The maximum temperature is expected to hover between 24 and 26 degrees Celsius, with the forecast indicating fog for the day.
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