Worst air pollution Porsgrunn kommune, today and tomorrow
Today (16 July): Air quality in Porsgrunn kommune is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 32.6/100).
Tomorrow (17 July 2026): Air quality in Porsgrunn kommune is fair. All pollutants stay as today. Pollution peaks around 4:00 PM (O3: 35.1/100). 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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Porsgrunn kommune's air quality reflects the Telemark Eidanger fjord position adjacent to Herøya industrial park, with vehicle traffic and the Yara fertiliser, Ineos chemical, and manufacturing corridor generating elevated industrial SO₂ and PM2.5. The fjord provides limited ventilation, while the industrial corridor's scale represents Porsgrunn's most distinctive local industrial air quality contribution throughout most of the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
32.6/100
PM2.5 (fine particles):
Good
7.1/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
32.6/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
13.3/100
PM1 (ultrafine particles):
Good
7.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
35.1/100
PM2.5 (fine particles):
Good
7.6/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
35.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Good
7.7/100
Pollen forecast in Porsgrunn kommune
View pollen forecastFrequently Asked Questions
Is air quality bad in Porsgrunn kommune right now?
On 16 July 2026, overall air quality in Porsgrunn kommune is fair. AQI is the main air quality indicator at 32.6/100. Pollution peaks around 12:00 PM (O3: 32.6/100).
Will air quality be worse tomorrow in Porsgrunn kommune?
On 17 July 2026, air quality conditions in Porsgrunn kommune will be similar to today, with AQI forecast at fair at 35.1/100. Pollution peaks around 4:00 PM (O3: 35.1/100).
When is air pollution at its worst in Porsgrunn kommune?
The clearest air quality impact in Porsgrunn kommune comes during the spring pollen peak, when grass and cereal pollen from surrounding farmland adds to the usual birch peak. Oslofjord-influenced airflow generally restores good conditions within a day or so. The remainder of the year, Porsgrunn kommune's air quality is typically unremarkable in a good way.
Are air quality levels in Porsgrunn kommune 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