Delhi's air quality improves to 'poor', night temperature higher than normal

New Delhi: Delhi's air quality improved to 'poor' on Monday, according to the latest CPCB data.

At 9 am, the national capital's Air Quality Index (AQI) was recorded at 281, compared to 318 at 4 pm on Sunday, Central Pollution Control Board



(CPCB) data showed.

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'.