Worst air pollution Bala, today and tomorrow
Today (16 July): Air quality in Bala is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 28.5/100).
Tomorrow (17 July 2026): Air quality in Bala is fair. PM2.5 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 36.7/100). 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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Commuter traffic feeding onto the M4 adds a further, consistent contribution to local readings. Like much of Gwynedd, Bala's air quality is shaped less by industry these days and more by everyday road traffic. Thanks to shifting coastal winds, pollution rarely lingers for long, which keeps average readings fairly unremarkable by UK standards.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
28.5/100
PM2.5 (fine particles):
Good
17.7/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Fair
27.6/100
O3 (ozone):
Fair
28.5/100
SO2 (sulfur dioxide):
Good
6.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.1/100
PM1 (ultrafine particles):
Good
14.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Fair
24.3/100
PM10 (coarse particles):
Good
8.8/100
NO2 (nitrogen dioxide):
Fair
36.7/100
O3 (ozone):
Fair
31.9/100
SO2 (sulfur dioxide):
Good
12.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Fair
20.4/100
Pollen forecast in Bala
View pollen forecastFrequently Asked Questions
Is air quality bad in Bala right now?
On 16 July 2026, overall air quality in Bala is fair. AQI is the main air quality indicator at 28.5/100. Pollution peaks around 2:00 PM (O3: 28.5/100).
Will air quality be worse tomorrow in Bala?
On 17 July 2026, air quality conditions in Bala will be similar to today, with AQI forecast at fair at 36.7/100. Pollution peaks around 6:00 AM (NO2: 36.7/100).
When is air pollution at its worst in Bala?
Here's the thing about Bala: air quality has a clear seasonal rhythm. Once the heating goes on and the air turns still, pollution from the M4 and nearby chimneys tends to build up rather than clear. Summer's more of a mixed bag: ozone can spike in strong sun, but overall dispersion tends to be better than the depths of winter. The shoulder seasons generally bring the mildest readings of the year.
Are air quality levels in Bala 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