Worst air pollution Grajewo, today and tomorrow
Today (16 July): Air quality in Grajewo is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 34.3/100).
Tomorrow (17 July 2026): Air quality in Grajewo is fair. AQI improves to medium; NO2 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 AM (NO2: 48.7/100). 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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Grajewo sits close to the Ełk River, and this shapes local air quality, with farmland of the Biebrza river basin adding to seasonal pressure from heavy goods traffic on the nearby motorway corridor. Seasonal variation is notable, with cleaner air typically following stronger winds or rainfall.
Today - 16 July | Pollution peaks at 23:00
AQI:
Fair
34.3/100
PM2.5 (fine particles):
Good
14.6/100
PM10 (coarse particles):
Good
4.2/100
NO2 (nitrogen dioxide):
Fair
34.3/100
O3 (ozone):
Fair
23.1/100
SO2 (sulfur dioxide):
Good
4.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
18.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 04:00
AQI:
Medium
48.7/100
PM2.5 (fine particles):
Good
16.8/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Medium
48.7/100
O3 (ozone):
Fair
31.1/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.1/100
PM1 (ultrafine particles):
Fair
21.4/100
Pollen forecast in Grajewo
View pollen forecastFrequently Asked Questions
Is air quality bad in Grajewo right now?
On 16 July 2026, overall air quality in Grajewo is fair. AQI is the main air quality indicator at 34.3/100. Pollution peaks around 11:00 PM (NO2: 34.3/100).
Will air quality be worse tomorrow in Grajewo?
On 17 July 2026, air quality conditions in Grajewo will be similar to today, with O3 forecast at fair at 31.1/100. Pollution peaks around 4:00 AM (NO2: 48.7/100).
When is air pollution at its worst in Grajewo?
Residents of Grajewo are quickest to notice reduced air quality when pine and birch pollen peaks or in periods marked by farmland of the Biebrza river basin; the clearest air tends to follow a change in wind direction or a spell of rainfall through the region.
Are air quality levels in Grajewo 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 Poland?
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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