Worst air pollution Cavan, today and tomorrow
Today (9 August): Air quality in Cavan is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 31.1/100).
Tomorrow (10 August 2026): Air quality in Cavan is good. AQI improves to good; NO2 decreases to good; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 19.0/100). Airmine updates local air quality forecasts four times daily.
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Cavan's air quality benefits from its inland lakeland border position, with vehicle traffic on the N3 the primary local source amid generally good wind dispersal across the drumlin-belt countryside.
Today - 9 August | Pollution peaks at 15:00
AQI:
Fair
31.1/100
PM2.5 (fine particles):
Good
8.3/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Fair
26.8/100
O3 (ozone):
Fair
31.1/100
SO2 (sulfur dioxide):
Good
4.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
10.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Good
19.0/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Good
4.4/100
O3 (ozone):
Good
19.0/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
3.1/100
Pollen forecast in Cavan
View pollen forecastFrequently Asked Questions
Is air quality bad in Cavan right now?
On 9 August 2026, overall air quality in Cavan is fair. AQI is the main air quality indicator at 31.1/100. Pollution peaks around 3:00 PM (O3: 31.1/100).
Will air quality be worse tomorrow in Cavan?
On 10 August 2026, air quality conditions in Cavan will be better than today, with AQI forecast at good at 19.0/100. Pollution peaks around 2:00 PM (O3: 19.0/100).
When is air pollution at its worst in Cavan?
In Cavan, air quality changes through the year largely because of its lake-studded midlands and border-county setting. Winter's calmest, coldest nights bring the year's main dip in air quality from solid-fuel heating smoke, while frequent rain and wind keep the rest of the year clean. A change in the weather, which happens often in Ireland, usually clears any smoke within a day or two.
Are air quality levels in Cavan 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: 9 August 2026 at 20:27 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.
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