Worst air pollution Richmond Park - London, today and tomorrow
Today (20 September): Air quality in Richmond Park is moderate. AQI and PM2.5 are moderate; PM10, NO2, and PM1 are fair; O3, SO2, CO, and HCHO are good. Pollution peaks around 11:00 PM (PM2.5: 41.3/100).
Tomorrow (21 September 2026): Air quality in Richmond Park is moderate. PM10 increases to moderate; NO2 increases to moderate; PM1 increases to moderate; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 57.7/100). Airmine updates local air quality forecasts four times daily.
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Richmond Park's position in London, City of means air quality is mostly determined by local road traffic and the compact scale of the centre. Northwesterly winds off the coast do most of the work keeping things in check, more so than any local policy or infrastructure change. Rush-hour queues near the M4 are usually when readings climb the most.
Today - 20 September | Pollution peaks at 23:00
AQI:
Moderate
41.3/100
PM2.5 (fine particles):
Moderate
41.3/100
PM10 (coarse particles):
Fair
24.8/100
NO2 (nitrogen dioxide):
Fair
39.6/100
O3 (ozone):
Good
17.1/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.9/100
HCHO (formaldehyde):
Good
8.3/100
PM1 (ultrafine particles):
Fair
25.3/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 20:00
AQI:
Moderate
57.7/100
PM2.5 (fine particles):
Moderate
54.0/100
PM10 (coarse particles):
Moderate
42.3/100
NO2 (nitrogen dioxide):
Moderate
57.7/100
O3 (ozone):
Good
19.5/100
SO2 (sulfur dioxide):
Good
13.3/100
CO (carbon monoxide):
Good
1.6/100
HCHO (formaldehyde):
Good
19.8/100
PM1 (ultrafine particles):
Moderate
44.8/100
Other Landmarks in London
Frequently Asked Questions
Is air quality bad in Richmond Park right now?
On 20 September 2026, overall air quality in Richmond Park is moderate. AQI is the main air quality indicator at 41.3/100. Pollution peaks around 11:00 PM (PM2.5: 41.3/100).
Will air quality be worse tomorrow in Richmond Park?
On 21 September 2026, air quality conditions in Richmond Park will be similar to today, with AQI forecast at moderate at 57.7/100. Pollution peaks around 8:00 PM (NO2: 57.7/100).
When is air pollution at its worst in Richmond Park?
You can roughly predict Richmond Park's air quality just by knowing the time of year. In summer, ozone can build up on sunny afternoons, though windier, warmer weather usually helps clear traffic-related pollution faster than in winter. Winter mornings can be the trickiest, with cold, still conditions trapping M4 traffic fumes and smoke from home fires close to the ground. Spring and autumn tend to be the calmer, more moderate stretches by comparison.
Are air quality levels in Richmond Park 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: 20 September 2026 at 14:33 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.
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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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