Deepavali pollution spike: How does it affect lung function and respiratory health? | Explainer
Doctors explain how firecracker smoke and the Deepavali pollution spike affect lung function, who is most vulnerable and how to reduce exposure.
Firecracker smoke releases fine particles and harmful gases that irritate the airways and affect lung health. Experts explain the short- and long-term effects of exposure and whether the damage persists after air quality improves
Updated - November 09, 2026 05:46 pm IST
Deepavali air pollution can aggravate lung conditions; repeated exposure may cause lasting damage. (Image used for representational purpose only) | Photo Credit: S.S. Kumar
A few hours of exposure to firecracker smoke can be enough to trigger coughing, wheezing or breathlessness, particularly in people living with asthma or other respiratory conditions. The effects, however, are not limited to those with an existing diagnosis. High concentrations of particulate matter and gases can irritate the airways in anyone.
The Air Quality Index (AQI) is a numerical measure that converts the levels of different air pollutants into a single figure to indicate how polluted the air is and the likely health effects. India’s Central Pollution Control Board (CPCB) calculates it using eight pollutants, including PM2.5, PM10, nitrogen dioxide, sulphur dioxide and carbon monoxide.
Published - November 09, 2026 03:51 pm IST
Deepavali / festivals / religious festival or holiday / The Hindu Explains
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