Worst air pollution Sussex, today and tomorrow
Today (9 August): Air quality in Sussex is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 37.5/100).
Tomorrow (10 August 2026): Air quality in Sussex is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 35.9/100). Airmine updates local air quality forecasts four times daily.
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Sussex's air quality reflects its small agricultural-town character, with Trans-Canada Highway traffic the primary modest local source.
Today - 9 August | Pollution peaks at 10:00
AQI:
Fair
37.5/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
6.7/100
NO2 (nitrogen dioxide):
Fair
27.4/100
O3 (ozone):
Fair
37.5/100
SO2 (sulfur dioxide):
Good
2.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.7/100
PM1 (ultrafine particles):
Good
7.2/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 12:00
AQI:
Fair
35.9/100
PM2.5 (fine particles):
Good
13.3/100
PM10 (coarse particles):
Good
8.5/100
NO2 (nitrogen dioxide):
Fair
33.9/100
O3 (ozone):
Fair
35.9/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.8/100
PM1 (ultrafine particles):
Good
10.2/100
Pollen forecast in Sussex
View pollen forecastFrequently Asked Questions
Is air quality bad in Sussex right now?
On 9 August 2026, overall air quality in Sussex is fair. AQI is the main air quality indicator at 37.5/100. Pollution peaks around 10:00 AM (O3: 37.5/100).
Will air quality be worse tomorrow in Sussex?
On 10 August 2026, air quality conditions in Sussex will be similar to today, with AQI forecast at fair at 35.9/100. Pollution peaks around 12:00 PM (O3: 35.9/100).
When is air pollution at its worst in Sussex?
Air quality in Sussex shifts noticeably across the seasons, shaped by the dairy farmland of the Kennebecasis Valley. Air quality is generally good, though spring and fall fieldwork stir up dust and occasional agricultural burning, and summer humidity can trap haze close to the ground. Wind can carry dust well beyond the fields themselves during the busiest planting and harvest weeks.
Are air quality levels in Sussex 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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