Worst air pollution St. Hanshaugen - Oslo, today and tomorrow
Today (9 August): Air quality in St. Hanshaugen is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 32.9/100).
Tomorrow (10 August 2026): Air quality in St. Hanshaugen is fair. All pollutants stay as today. Pollution peaks around 12:00 AM (O3: 31.9/100). Airmine updates local air quality forecasts four times daily.
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Oslo's St. Hanshaugen hill records good air quality by central Oslo standards, with the park's elevated position and green cover providing cleaner conditions than the surrounding Grünerløkka and Majorstuen streets below. The hilltop setting rises above the worst of the vehicle and wood-burning emissions on calm winter days.
Today - 9 August | Pollution peaks at 23:00
AQI:
Fair
32.9/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Good
13.2/100
O3 (ozone):
Fair
32.9/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
6.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Fair
31.9/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
17.5/100
O3 (ozone):
Fair
31.9/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
6.4/100
Other Landmarks in Oslo
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Frequently Asked Questions
Is air quality bad in St. Hanshaugen right now?
On 9 August 2026, overall air quality in St. Hanshaugen is fair. AQI is the main air quality indicator at 32.9/100. Pollution peaks around 11:00 PM (O3: 32.9/100).
Will air quality be worse tomorrow in St. Hanshaugen?
On 10 August 2026, air quality conditions in St. Hanshaugen will be similar to today, with AQI forecast at fair at 31.9/100. Pollution peaks around 12:00 AM (O3: 31.9/100).
When is air pollution at its worst in St. Hanshaugen?
Locally, St. Hanshaugen's air is most affected during the birch pollen peak in late spring, when the regional birch peak combines with typical weekday commuter traffic. Background air quality across the region is generally good most of the year. Otherwise, St. Hanshaugen maintains good air quality across most of the calendar.
Are air quality levels in St. Hanshaugen 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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