The high levels of PM2.5 pollution expected during and after Diwali pose serious health risks, especially for vulnerable groups such as children, the elderly, and individuals with respiratory conditions like asthma or COPD. Prolonged exposure to such pollution can lead to respiratory distress, coughing, breathlessness, and other health complications. The air quality in Delhi has consistently been in the 'severe' category during post-Diwali periods over the past decade, making it a recurring public health concern. Residents are advised to take precautions to minimise exposure to harmful air pollutants.