Worst air pollution Clapham Common - London, today and tomorrow
Today (16 July): Air quality in Clapham Common 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 Clapham Common 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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Air quality in Clapham Common is shaped by its location in London, City of, where vehicle traffic and everyday urban activity dominate local sources. Residential heating and light industry add a modest seasonal contribution, though northwesterly winds off the coast keep overall levels moderate. Traffic on the A303 is the most significant local emissions source, especially at peak times.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
12.0/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
8.7/100
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
12.4/100
PM10 (coarse particles):
Good
4.2/100
NO2 (nitrogen dioxide):
Good
16.9/100
O3 (ozone):
Medium
43.6/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
11.6/100
Other Landmarks in London
Frequently Asked Questions
Is air quality bad in Clapham Common right now?
On 16 July 2026, overall air quality in Clapham Common 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 Clapham Common?
On 17 July 2026, air quality conditions in Clapham Common 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 Clapham Common?
Clapham Common's air quality follows a familiar seasonal pattern most UK towns share. 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. Once the heating goes on and the air turns still, pollution from the A303 and nearby chimneys tends to build up rather than clear. Most of spring and autumn stays fairly steady, right in the middle of those two extremes.
Are air quality levels in Clapham Common 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