Worst air pollution Swan River, today and tomorrow
Today (20 September): Air quality in Swan River is poor. AQI and NO2 are poor; PM2.5 and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (NO2: 70.8/100).
Tomorrow (21 September 2026): Air quality in Swan River is very poor. AQI worsens to very poor; PM2.5 increases to moderate; PM10 increases to fair; NO2 increases to very poor; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (NO2: 100/100). 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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Swan River's air quality reflects its agricultural service-town character, with Highway 10 traffic and grain-handling operations the primary modest local sources.
Today - 20 September | Pollution peaks at 16:00
AQI:
Poor
70.8/100
PM2.5 (fine particles):
Fair
36.6/100
PM10 (coarse particles):
Good
16.5/100
NO2 (nitrogen dioxide):
Poor
70.8/100
O3 (ozone):
Fair
20.5/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.9/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
12.5/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 14:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Moderate
52.0/100
PM10 (coarse particles):
Fair
33.4/100
NO2 (nitrogen dioxide):
Very poor
100/100
O3 (ozone):
Fair
22.2/100
SO2 (sulfur dioxide):
Good
5.9/100
CO (carbon monoxide):
Good
1.3/100
HCHO (formaldehyde):
Good
9.3/100
PM1 (ultrafine particles):
Fair
37.2/100
Pollen forecast in Swan River
View pollen forecastFrequently Asked Questions
Is air quality bad in Swan River right now?
On 20 September 2026, overall air quality in Swan River is poor. AQI is the main air quality indicator at 70.8/100. Pollution peaks around 4:00 PM (NO2: 70.8/100).
Will air quality be worse tomorrow in Swan River?
On 21 September 2026, air quality conditions in Swan River will be worse than today, with AQI forecast at very poor at 100/100. Pollution peaks around 2:00 PM (NO2: 100/100).
When is air pollution at its worst in Swan River?
Swan River's air quality varies through the year, influenced by its agricultural service-town streets near Highway 10 and the grain-handling operations. Cold winter days can trap heating emissions close to the ground, while summer heat, farm dust and occasional wildfire smoke can push pollution higher than usual. Strong, steady prairie winds usually clear the air within a day or two of any buildup.
Are air quality levels in Swan River 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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