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Air quality map — world AQI forecast

Worst forecast air in our cities, next 48 h: Bangkok, Thailand — AQI 106 (Unhealthy for Sensitive Groups), Ozone (O₃), Sat 4 PM local time

Air quality map

Highest forecast AQI in the next 48 hours

Peak US AQI (EPA scale) in our 86 forecast cities over the next 48 hours, computed by Weathershot from the Copernicus CAMS forecast. Times are local to each city.

CityPeak AQIMain pollutantWhen
Bangkok, Thailand106Unhealthy for Sensitive GroupsOzone (O₃)Sat 4 PM
Milan, Italy89ModeratePM2.5Sun 10 AM
Chiang Mai, Thailand79ModerateOzone (O₃)Sat 4 PM
Lake Como79ModeratePM2.5Sun 10 AM
Beaverton, OR77ModeratePM2.5Fri 4 AM
Aspen, CO72ModeratePM2.5Fri 5 PM
Lake Garda (Sirmione)70ModeratePM2.5Sun 10 AM
Antwerp, Belgium69ModeratePM2.5Sat 10 PM
Brussels, Belgium66ModeratePM2.5Sat 7 PM
Galveston, TX66ModeratePM2.5Sat 12 AM

44 of 86 cities stay in the Good band (AQI 0–50) for the whole 48 hours.

Model forecast, not measurements

This index is computed from a model forecast. It is not a reading from monitoring stations and not an official alert. Official measurements and alerts: AirNow (USA) · European Air Quality Index (EEA) (Europe).

What this air pollution map shows

The map shows a forecast air quality index: the worst of five pollutants — PM2.5, PM10, ozone (O₃), nitrogen dioxide (NO₂) and sulphur dioxide (SO₂). Switch between the US EPA scale (0–500) and the European EEA scale. Over Europe the forecast comes from CAMS Europe (10 km, an ensemble of regional models), elsewhere from CAMS global (about 40 km). Drag the timeline to move through the forecast; tap the map for the forecast at a place.

AQI categories (US EPA)

This forecast on the map

Copernicus CAMS run
00 UTC, 12 Nov 2026
On the map since
12:43 UTC, 12 Nov 2026
Forecast length
4 days (last frame +96 h)
Time steps
every 3 h

More maps

Updated: CAMS run 00 UTC, 12 Nov 2026 · built 11:43 UTC, 13 Nov 2026 · Model forecast, not a measurement or warning.

Sources

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