According to the Central Pollution Control Board (CPCB) an AQI of 0-50 is classified "good", 51-100 as "satisfactory", 101-200 as "moderate", 201-300 as "poor", 301-400 as "very poor" and 401-500 as "severe"

A clear sky is expected on Sunday, with temperatures hovering around 33 degrees C (max) and 19 degrees C as per IMD

Stating that although the bursting of firecrackers does add to the pollution, it is not the main cause

The pollution is exacerbated by factors such as crop burning in Punjab, vehicle emissions, and, now, around Diwali, the fireworks will contribute to the declining air quality in the capital city

Out of the 38 monitoring stations in Delhi, 12 reported air quality in the 'very poor' category.