Worst air pollution Uxbridge, today and tomorrow
Today (16 July): Air quality in Uxbridge 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 Uxbridge is medium. AQI improves to medium; 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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Uxbridge sits within Hillingdon, and its air quality profile is driven mainly by road traffic and the density of the centre. Easterly winds generally provide reasonable ventilation, keeping levels close to typical UK urban averages for a town this size. Emissions along the M40 represent the town's main traffic-related pollution source.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Good
6.5/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
7.9/100
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
11.3/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Good
9.2/100
O3 (ozone):
Medium
43.6/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
10.5/100
Pollen forecast in Uxbridge
View pollen forecastFrequently Asked Questions
Is air quality bad in Uxbridge right now?
On 16 July 2026, overall air quality in Uxbridge 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 Uxbridge?
On 17 July 2026, air quality conditions in Uxbridge will be better than today, with AQI forecast at medium at 43.6/100. Pollution peaks around 4:00 PM (O3: 43.6/100).
When is air pollution at its worst in Uxbridge?
There's a clear yearly cycle to air quality in Uxbridge if you look closely. Come winter, NO₂ and PM2.5 usually creep up, as heating and calmer air let M40 traffic emissions linger rather than disperse. In summer, ozone can build up on sunny afternoons, though windier, warmer weather usually helps clear traffic-related pollution faster than in winter. For much of spring and autumn, things settle into a fairly unremarkable middle ground.
Are air quality levels in Uxbridge 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