Worst air pollution Kalundborg, today and tomorrow
Today (16 July): Air quality in Kalundborg is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (NO2: 47.3/100).
Tomorrow (17 July 2026): Air quality in Kalundborg is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 AM (NO2: 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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Kalundborg's air quality is shaped by one of Denmark's largest industrial clusters — a major refinery, pharmaceutical production, and power generation sit right on the fjord, giving the town a distinct industrial signature not seen in most Danish provincial towns. Onshore breezes from the Great Belt usually clear this within a day or two.
Today - 16 July | Pollution peaks at 05:00
AQI:
Medium
47.3/100
PM2.5 (fine particles):
Good
9.0/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Medium
47.3/100
O3 (ozone):
Fair
24.9/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
11.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 05:00
AQI:
Fair
37.2/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
37.2/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
10.6/100
Pollen forecast in Kalundborg
View pollen forecastFrequently Asked Questions
Is air quality bad in Kalundborg right now?
On 16 July 2026, overall air quality in Kalundborg is fair. O3 is the main pollutant at 24.9/100. Pollution peaks around 5:00 AM (NO2: 47.3/100).
Will air quality be worse tomorrow in Kalundborg?
On 17 July 2026, air quality conditions in Kalundborg will be similar to today, with AQI forecast at fair at 37.2/100. Pollution peaks around 5:00 AM (NO2: 37.2/100).
When is air pollution at its worst in Kalundborg?
Kalundborg's air quality dips are tied mainly to its unusually large industrial cluster — refinery, pharmaceutical, and power operations sitting right on the fjord — though onshore breezes off the Great Belt usually clear this within a day or two.
Are air quality levels in Kalundborg 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.
Want to see air quality forecasts for other cities in Denmark?
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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