Worst air pollution Great Dunmow, today and tomorrow
Today (16 July): Air quality in Great Dunmow is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 31.6/100).
Tomorrow (17 July 2026): Air quality in Great Dunmow is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 36.0/100). 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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Emissions along the M1 represent the town's main traffic-related pollution source. Great Dunmow's position in Essex means air quality is mostly determined by local road traffic and the compact scale of the centre. Light prevailing breezes tend to disperse pollutants reasonably well, keeping readings close to typical UK small-town levels.
Today - 16 July | Pollution peaks at 16:00
AQI:
Fair
31.6/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
15.1/100
O3 (ozone):
Fair
31.6/100
SO2 (sulfur dioxide):
Good
2.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
9.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
36.0/100
PM2.5 (fine particles):
Good
13.9/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Good
18.7/100
O3 (ozone):
Fair
36.0/100
SO2 (sulfur dioxide):
Good
3.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
12.5/100
Pollen forecast in Great Dunmow
View pollen forecastFrequently Asked Questions
Is air quality bad in Great Dunmow right now?
On 16 July 2026, overall air quality in Great Dunmow is fair. AQI is the main air quality indicator at 31.6/100. Pollution peaks around 4:00 PM (O3: 31.6/100).
Will air quality be worse tomorrow in Great Dunmow?
On 17 July 2026, air quality conditions in Great Dunmow will be similar to today, with AQI forecast at fair at 36.0/100. Pollution peaks around 3:00 PM (O3: 36.0/100).
When is air pollution at its worst in Great Dunmow?
In Great Dunmow, pollution levels don't stay flat — winter and summer look pretty different. Winter tends to be worst, with wood burning, home heating, and still, cold air trapping traffic fumes from the M1 closer to ground level. Summer brings a different issue — stronger sunlight can push up ozone levels on hot, sunny days, even though traffic pollution itself often disperses more easily. Spring and autumn are typically the easiest months, air-quality-wise, for most residents.
Are air quality levels in Great Dunmow 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.
Want to see air quality forecasts for other cities in United Kingdom?
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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