Worst air pollution Arendal, today and tomorrow
Today (16 July): Air quality in Arendal is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 30.0/100).
Tomorrow (17 July 2026): Air quality in Arendal is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 32.3/100). 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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Arendal's archipelago position gives strong sea ventilation across most of the town, with local traffic along the E18 corridor the main source of any noticeable emissions on otherwise breezy days.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
30.0/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Good
10.8/100
O3 (ozone):
Fair
30.0/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.5/100
PM1 (ultrafine particles):
Good
9.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
32.3/100
PM2.5 (fine particles):
Good
11.1/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
10.7/100
O3 (ozone):
Fair
32.3/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.2/100
PM1 (ultrafine particles):
Good
10.3/100
Pollen forecast in Arendal
View pollen forecastFrequently Asked Questions
Is air quality bad in Arendal right now?
On 16 July 2026, overall air quality in Arendal is fair. AQI is the main air quality indicator at 30.0/100. Pollution peaks around 3:00 PM (O3: 30.0/100).
Will air quality be worse tomorrow in Arendal?
On 17 July 2026, air quality conditions in Arendal will be similar to today, with AQI forecast at fair at 32.3/100. Pollution peaks around 3:00 PM (O3: 32.3/100).
When is air pollution at its worst in Arendal?
Air quality in Arendal is least favourable on the calmest, coldest days of winter, when still, high-pressure days let local emissions settle over the sheltered coastline. This part of the southern coast generally enjoys good background air quality year-round. Most of the year, conditions in Arendal stay comfortably within normal ranges.
Are air quality levels in Arendal 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 Norway?
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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