Srinagar, Nov. 9 -- Delhi witnessed its highest level of Diwali-related air pollution in five years, with air quality deteriorating significantly after the festival and remaining in the 'very poor' category on Monday morning. Data from the Central Pollution Control Board (CPCB) showed that the national capital recorded an average Air Quality Index (AQI) of 376 on Diwali. The AQI stood at 371 at 10 am on Monday, making it the worst post-Diwali air quality recorded since 2021. Out of 51 air quality monitoring stations reporting data on Monday morning, 14 registered pollution levels in the 'severe' category, while 33 recorded 'very poor' air quality. The remaining four stations reported conditions in the 'poor' category. Delhi Technological ...