Worst air pollution Charlbury, today and tomorrow
Today (20 September): Air quality in Charlbury is moderate. AQI and NO2 are moderate; PM2.5 is fair; PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (NO2: 44.2/100).
Tomorrow (21 September 2026): Air quality in Charlbury is very poor. AQI worsens to very poor; PM2.5 increases to moderate; PM10 increases to fair; NO2 increases to very poor; all other pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 80.0/100). Airmine updates local air quality forecasts four times daily.
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The air quality picture in Charlbury reflects a typical Oxfordshire town, with traffic emissions and local commercial activity as key contributors. Rush-hour queues near the M27 are usually when readings climb the most. Moist Atlantic fronts generally provide reasonable ventilation, keeping levels close to typical UK urban averages for a town this size.
Today - 20 September | Pollution peaks at 21:00
AQI:
Moderate
44.2/100
PM2.5 (fine particles):
Fair
26.8/100
PM10 (coarse particles):
Good
19.9/100
NO2 (nitrogen dioxide):
Moderate
44.2/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
5.6/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 21:00
AQI:
Very poor
80.0/100
PM2.5 (fine particles):
Moderate
43.4/100
PM10 (coarse particles):
Fair
27.0/100
NO2 (nitrogen dioxide):
Very poor
80.0/100
O3 (ozone):
Good
19.1/100
SO2 (sulfur dioxide):
Good
5.3/100
CO (carbon monoxide):
Good
1.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
16.2/100
Pollen forecast in Charlbury
View pollen forecastFrequently Asked Questions
Is air quality bad in Charlbury right now?
On 20 September 2026, overall air quality in Charlbury is moderate. AQI is the main air quality indicator at 44.2/100. Pollution peaks around 9:00 PM (NO2: 44.2/100).
Will air quality be worse tomorrow in Charlbury?
On 21 September 2026, air quality conditions in Charlbury will be worse than today, with AQI forecast at very poor at 80.0/100. Pollution peaks around 9:00 PM (NO2: 80.0/100).
When is air pollution at its worst in Charlbury?
Air quality in Charlbury isn't the same all year round — it really shifts with the seasons. Winter tends to be worst, with wood burning, home heating, and still, cold air trapping traffic fumes from the M27 closer to ground level. 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 Charlbury 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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