Delhi air quality deteriorates as revellers mark Diwali with illegal fireworks

Air quality in New Delhi plummeted to 'severe' levels on Monday following Diwali celebrations. Despite Supreme Court orders restricting firework usage to certified low-polluting options, residents set off fireworks throughout the night. Data from the Central Pollution Control Board recorded an air quality index of 370, with several areas exceeding 400. The city remains shrouded in a thick layer of smog as pollution levels spike significantly.