AQI plunges to 'severe' category

Delhi's air quality remains 'very poor' for the third week post-Diwali, causing breathing problems and health concerns.
The daytime temperature was recorded at 29.4 degrees Celsius, four notches above the seasonal average, according to IMD.
While the Central Pollution Control Board (CPCB) pegged Delhi’s AQI at 494 on Monday, IQAir, an international monitoring app, ...
Air quality in several cities across India shows variation but remains mostly within the "good" or "satisfactory" categories.