Chennai air quality today (4 Nov 2026)

Residents in Chennai are likely to be interested in updates about the current air quality, as it can have a significant impact on their daily activities, especially for those with pre-existing health conditions.

The US air quality index for Chennai is 62, rated "Moderate". PM2.5 is 19.3 µg/m³ and PM10 is 22.9 µg/m³.

PM2.5 refers to fine particles small enough to be inhaled deep into the lungs; PM10 covers slightly larger dust and pollen-sized particles. On days rated Moderate or worse, people with asthma, other respiratory conditions, or heart disease, along with children and older adults, are usually the first to notice any effect and may want to limit prolonged outdoor exertion.

Air quality can change quickly through the day as traffic, weather and wind patterns shift. People with breathing problems should follow local health advice. Data: Open-Meteo Air Quality API (CC BY 4.0).