Worst air pollution Vallentuna, today and tomorrow
Today (16 July): Air quality in Vallentuna is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 30.3/100).
Tomorrow (17 July 2026): Air quality in Vallentuna is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 37.2/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Vallentuna's air quality readings are typically favourable, with only isolated periods of elevated pollutant levels. Local sources are dominated by commuter residential and agriculture and everyday vehicle traffic rather than any single major industrial emitter. The Roslagen forest and lake district provides a degree of natural ventilation, preventing pollutants from settling for extended stretches. All told, Vallentuna's air quality profile is fairly typical for a Swedish town of its size and setting.
Today - 16 July | Pollution peaks at 19:00
AQI:
Fair
30.3/100
PM2.5 (fine particles):
Good
9.9/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
5.0/100
O3 (ozone):
Fair
30.3/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
10.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
37.2/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
6.5/100
O3 (ozone):
Fair
37.2/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
9.7/100
Pollen forecast in Vallentuna
View pollen forecastFrequently Asked Questions
Is air quality bad in Vallentuna right now?
On 16 July 2026, overall air quality in Vallentuna is fair. AQI is the main air quality indicator at 30.3/100. Pollution peaks around 7:00 PM (O3: 30.3/100).
Will air quality be worse tomorrow in Vallentuna?
On 17 July 2026, air quality conditions in Vallentuna will be similar to today, with AQI forecast at fair at 37.2/100. Pollution peaks around 2:00 PM (O3: 37.2/100).
When is air pollution at its worst in Vallentuna?
What is the yearly air quality pattern like in Vallentuna? Winter is generally when local emissions build up most, since cold, stagnant air limits how quickly wood-smoke and exhaust clear. From spring onward, increasing wind and precipitation generally break up the stagnant conditions that caused winter dips. Summer typically brings the calmest air quality picture, punctuated only rarely by ozone build-up during still, hot weather. Autumn generally marks the year's decline back toward winter conditions, driven mainly by the return of wood-burning and stiller air. This pattern reflects a fairly classic central Swedish climate, with clear seasonal transitions.
Are air quality levels in Vallentuna based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app