Worst air pollution Waltham Abbey, today and tomorrow
Today (16 July): Air quality in Waltham Abbey 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 Waltham Abbey 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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Waltham Abbey's air quality reflects its position within Essex, with local traffic and the town's built-up core as the main contributors. Commuter traffic feeding onto the M1 adds a further, consistent contribution to local readings. Inland breezes from the surrounding countryside offer a degree of natural ventilation, keeping pollution broadly in line with comparable UK towns.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
8.9/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
8.2/100
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
11.8/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Good
12.5/100
O3 (ozone):
Medium
43.6/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
11.0/100
Pollen forecast in Waltham Abbey
View pollen forecastFrequently Asked Questions
Is air quality bad in Waltham Abbey right now?
On 16 July 2026, overall air quality in Waltham Abbey 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 Waltham Abbey?
On 17 July 2026, air quality conditions in Waltham Abbey 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 Waltham Abbey?
You can roughly predict Waltham Abbey's air quality just by knowing the time of year. By summer, ozone tends to rise on bright days, while better ventilation generally keeps particulate and NO₂ levels lower than winter. Winter mornings can be the trickiest, with cold, still conditions trapping M1 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 Waltham Abbey 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