Delhi’s air quality improved marginally but it was still in the poor category on Tuesday morning.
The minimum temperature on Tuesday is likely to be at 16°C. (HT photo | Rahul Singh)
The data from the central pollution control board (CPCB) showed the hourly air quality index (AQI) at 7am stood at 246.
On Monday, the average 24-hour AQI was 294, which is in the higher-end of the poor category.
An AQI between zero and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’.