Worst air pollution Harrietsham, today and tomorrow
Today (9 August): Air quality in Harrietsham is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (NO2: 47.1/100).
Tomorrow (10 August 2026): Air quality in Harrietsham is fair. AQI worsens to fair; NO2 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 29.5/100). 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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Air quality in Harrietsham is shaped by its location in Kent, where vehicle traffic and everyday urban activity dominate local sources. The area's changeable Atlantic weather do most of the work keeping things in check, more so than any local policy or infrastructure change. The nearby M11 corridor contributes steady vehicle emissions that affect roadside readings.
Today - 9 August | Pollution peaks at 06:00
AQI:
Medium
47.1/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Medium
47.1/100
O3 (ozone):
Medium
42.3/100
SO2 (sulfur dioxide):
Good
9.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
13.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Fair
29.5/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
22.6/100
O3 (ozone):
Fair
29.5/100
SO2 (sulfur dioxide):
Good
6.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.7/100
PM1 (ultrafine particles):
Good
9.5/100
Pollen forecast in Harrietsham
View pollen forecastFrequently Asked Questions
Is air quality bad in Harrietsham right now?
On 9 August 2026, overall air quality in Harrietsham is medium. AQI is the main air quality indicator at 47.1/100. Pollution peaks around 6:00 AM (NO2: 47.1/100).
Will air quality be worse tomorrow in Harrietsham?
On 10 August 2026, air quality conditions in Harrietsham will be worse than today, with AQI forecast at fair at 29.5/100. Pollution peaks around 4:00 PM (O3: 29.5/100).
When is air pollution at its worst in Harrietsham?
Harrietsham doesn't have one fixed air quality level — it swings between two extremes each year. Winter mornings can be the trickiest, with cold, still conditions trapping M11 traffic fumes and smoke from home fires close to the ground. In summer, ozone can build up on sunny afternoons, though windier, warmer weather usually helps clear traffic-related pollution faster than in winter. For much of spring and autumn, things settle into a fairly unremarkable middle ground.
Are air quality levels in Harrietsham 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: 9 August 2026 at 20:27 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.
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