Worst air pollution Barri, today and tomorrow
Today (16 July): Air quality in Barri is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 34.0/100).
Tomorrow (17 July 2026): Air quality in Barri is fair. AQI improves to medium; NO2 increases to fair; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 43.6/100). 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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Being part of Vale of Glamorgan, The, Barri sees an air quality profile that's largely down to traffic and general town-centre activity. Thanks to cooler northerly winds, pollution rarely lingers for long, which keeps average readings fairly unremarkable by UK standards. Commuter traffic feeding onto the A46 adds a further, consistent contribution to local readings.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
9.6/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
15.6/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
9.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Medium
43.6/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
4.4/100
NO2 (nitrogen dioxide):
Fair
21.5/100
O3 (ozone):
Medium
43.6/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
12.3/100
Pollen forecast in Barri
View pollen forecastFrequently Asked Questions
Is air quality bad in Barri right now?
On 16 July 2026, overall air quality in Barri is fair. AQI is the main air quality indicator at 34.0/100. Pollution peaks around 3:00 PM (O3: 34.0/100).
Will air quality be worse tomorrow in Barri?
On 17 July 2026, air quality conditions in Barri will be similar to today, with NO2 forecast at fair at 21.5/100. Pollution peaks around 4:00 PM (O3: 43.6/100).
When is air pollution at its worst in Barri?
Here's the thing about Barri: air quality has a clear seasonal rhythm. By summer, ozone tends to rise on bright days, while better ventilation generally keeps particulate and NO₂ levels lower than winter. Through the colder months, readings near the A46 often rise, since chimney smoke and stagnant air stop pollutants clearing away. For much of spring and autumn, things settle into a fairly unremarkable middle ground.
Are air quality levels in Barri 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