Air quality in Kolkata, India
Local AQI, forecasts and practical guidance for your day.
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Local AQI, forecasts and practical guidance for your day.
Loading air quality for Kolkata…
Source updated
Current air quality
Reduce heavy outdoor activity.
PM2.5
65 µg/m³AQI 162 · UnhealthyPM10
67 µg/m³AQI 59 · ModerateNO₂
24 µg/m³AQI 12 · GoodSO₂
27 µg/m³AQI 15 · GoodBars show each pollutant’s US AQI on a 0–500 scale; concentrations above are in µg/m³.
About these readingsKolkata · Compare the next 24 hours.
Lowest forecast AQI
5 am – 2 pm
Nov 10 · 9 hours
Expected air quality
Unhealthy · AQI 153
9 AQI points lower than the current reading.
Lower pollution is relative. This window is still above the good-air range.
Nov 10 · 5 am
Unhealthy · AQI 153
Tap a bar to choose a time · Swipe for later hours
Kolkata · What are you heading out for?
Choose where you’d like to walk
Pick a route and keep an indoor alternative in mind.
Your checklist stays in this view.
Based on general adult guidance and Kolkata’s current reading. Activity selection changes the planning steps, not the AQI rating. Follow your clinician’s advice for health needs.
Recheck before leaving. Forecasts and air quality can change.
Understand your air
A higher US Air Quality Index means more polluted air. The good category runs from 0 to 50; the category determines the guidance shown here.
Particles up to 2.5 micrometers across. Their concentration is measured in µg/m³, a different unit from AQI.
Particles up to 10 micrometers across, including dust. Compare like-for-like pollutants and time periods when exploring trends.
The displayed AQI is 162, in the unhealthy air quality category. This selects the guidance above. Forecasts show how that index may change; they do not establish which source caused the pollution.
Explore nearby regional estimates and station observations, or plan a walk, ride, or drive.
This guide uses regional air-quality estimates at 22.573°, 88.364°. They can differ from conditions on an individual street. Source time, availability and forecast labels are shown with the readings.