Chennai's air quality index (AQI) hit dangerous levels on Diwali night, with pollution levels exceeding safe thresholds. The city recorded an AQI of 450, far above the World Health Organization's safe limit of 50.
Fireworks and increased vehicle emissions contributed to the sharp rise in pollutants. Levels of particulate matter (PM2.5) and nitrogen dioxide (NO2) spiked, prompting health advisories. Local authorities issued warnings advising vulnerable groups to avoid outdoor activity.
This marks the third consecutive year of severe pollution during Diwali in Chennai. Previous years saw similar spikes, with public health officials urging stricter regulations on fireworks and vehicle use. The situation highlights ongoing challenges in managing urban air quality amid cultural celebrations.
