Worst air pollution Heerenveen, today and tomorrow
Today (20 September): Air quality in Heerenveen is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 25.7/100).
Tomorrow (21 September 2026): Air quality in Heerenveen is fair. PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (O3: 23.2/100). Airmine updates local air quality forecasts four times daily.
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Heerenveen, known locally as a meadow and forest-edge town, sees air quality conditions typical of Fryslân, where traffic along the A32 and nearby industry are the chief contributors to local pollution. the Friese meadows and Skoatterwald forest nearby helps with dispersal, and the town's exposure to the speed-skating heartland of Fryslân keeps conditions broadly in line with typical Dutch levels through most of the year.
Today - 20 September | Pollution peaks at 15:00
AQI:
Fair
25.7/100
PM2.5 (fine particles):
Good
19.3/100
PM10 (coarse particles):
Fair
21.1/100
NO2 (nitrogen dioxide):
Good
3.6/100
O3 (ozone):
Fair
25.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
2.2/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 00:00
AQI:
Fair
23.2/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
14.7/100
NO2 (nitrogen dioxide):
Good
4.7/100
O3 (ozone):
Fair
23.2/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
1.3/100
PM1 (ultrafine particles):
Good
2.5/100
Pollen forecast in Heerenveen
View pollen forecastFrequently Asked Questions
Is air quality bad in Heerenveen right now?
On 20 September 2026, overall air quality in Heerenveen is fair. AQI is the main air quality indicator at 25.7/100. Pollution peaks around 3:00 PM (O3: 25.7/100).
Will air quality be worse tomorrow in Heerenveen?
On 21 September 2026, air quality conditions in Heerenveen will be similar to today, with AQI forecast at fair at 23.2/100. Pollution peaks around 12:00 AM (O3: 23.2/100).
When is air pollution at its worst in Heerenveen?
Heerenveen tends to see its biggest air quality dips during spring and the start of summer, when birch, oak, and alder pollen peaks, or on still, warm days when traffic on the A32 and industry emissions linger; wide-open Frisian grassland and lake breezes keep the air moving. Outside these windows, conditions in Heerenveen rarely stray far from the national average.
Are air quality levels in Heerenveen 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: 20 September 2026 at 14:33 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.
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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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