Air Quality Index in Chennai

Key Pollution Drivers

• Vehicular emissions along Mount Road, Anna Salai, and the IT corridor
• Industrial complexes and refineries in Manali and Ennore
• Shipping and cargo movement at the Chennai Port and Kamarajar Port

Seasonal Patterns

• Summer registers higher ozone as heat and humidity mix with urban emissions
• North-east monsoon showers cleanse particulates but can trap sulphur oxides on still days
• Post-monsoon construction rush revives dust in rapidly growing suburbs

Station Highlights

Pollutant Breakdown

Health Advisory

• Coastal residents should ventilate homes during late mornings when sea breezes peak
• Keep inhalers or anti-allergy medication handy during the humid north-east monsoon
• Use masks when commuting through port-adjacent corridors with heavy truck movement

Local Actions & Resources

• Adopt suburban rail, metro, or bus services for daily commutes to reduce road emissions
• Engage with local resident welfare associations to monitor dust control at project sites
• Follow Tamil Nadu Pollution Control Board advisories on industrial emission episodes

Trend Explorer

Use the interactive charts below to analyse pollutant trends across different time ranges. Switch between pollutants to determine which one drives the overall AQI during specific hours of the day.