Recent trends show that post-Diwali air quality drops significantly. In 2025, Gurugram’s Air Quality Index (AQI) ranged between 295 and 370 , classified as poor to very poor  according to the Central Pollution Control Board (CPCB) . This deterioration is due to uncontrolled firecracker use, unfavorable weather conditions, and existing urban pollution . Particulate matters such as PM2.5 and PM10  are highly toxic and can negatively affect visibility  as well as respiratory hea