Worst air pollution Tower of London - London, today and tomorrow
Today (21 September): Air quality in Tower of London is poor. AQI and NO2 are poor; PM2.5 and PM1 are moderate; PM10 is fair; O3, SO2, CO, and HCHO are good. Pollution peaks around 8:00 PM (NO2: 77.2/100).
Tomorrow (22 September 2026): Air quality in Tower of London is poor. PM10 increases to moderate; all other pollutants stay as today. Pollution peaks around 10:00 AM (NO2: 79.3/100). Airmine updates local air quality forecasts four times daily.
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Rush-hour queues near the A34 are usually when readings climb the most. Tower of London's position in London, City of means air quality is mostly determined by local road traffic and the compact scale of the centre. Easterly winds do most of the work keeping things in check, more so than any local policy or infrastructure change.
Today - 21 September | Pollution peaks at 20:00
AQI:
Poor
77.2/100
PM2.5 (fine particles):
Moderate
45.8/100
PM10 (coarse particles):
Fair
36.2/100
NO2 (nitrogen dioxide):
Poor
77.2/100
O3 (ozone):
Good
19.2/100
SO2 (sulfur dioxide):
Good
10.0/100
CO (carbon monoxide):
Good
1.2/100
HCHO (formaldehyde):
Good
15.0/100
PM1 (ultrafine particles):
Moderate
43.7/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 10:00
AQI:
Poor
79.3/100
PM2.5 (fine particles):
Moderate
48.8/100
PM10 (coarse particles):
Moderate
40.3/100
NO2 (nitrogen dioxide):
Poor
79.3/100
O3 (ozone):
Good
12.6/100
SO2 (sulfur dioxide):
Good
9.8/100
CO (carbon monoxide):
Good
1.7/100
HCHO (formaldehyde):
Good
17.3/100
PM1 (ultrafine particles):
Moderate
47.7/100
Other Landmarks in London
Frequently Asked Questions
Is air quality bad in Tower of London right now?
On 21 September 2026, overall air quality in Tower of London is poor. AQI is the main air quality indicator at 77.2/100. Pollution peaks around 8:00 PM (NO2: 77.2/100).
Will air quality be worse tomorrow in Tower of London?
On 22 September 2026, air quality conditions in Tower of London will be similar to today, with AQI forecast at poor at 79.3/100. Pollution peaks around 10:00 AM (NO2: 79.3/100).
When is air pollution at its worst in Tower of London?
Tower of London doesn't have one fixed air quality level — it swings between two extremes each year. In deep winter, a lack of wind lets A34 traffic fumes and woodsmoke settle instead of blowing through. Summer sunshine can drive up ozone locally, though overall air generally moves and clears more freely than in winter. Spring and autumn don't usually cause much concern, sitting comfortably between winter's peak and summer's ozone spikes.
Are air quality levels in Tower of London 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: 21 September 2026 at 08:52 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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