Worst air pollution Gisors, today and tomorrow
Today (25 August): Air quality in Gisors is moderate. AQI and O3 are moderate; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 47.3/100).
Tomorrow (26 August 2026): Air quality in Gisors is fair. AQI improves to fair; O3 decreases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 38.6/100). 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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Gisors's air quality is driven largely by port traffic and cross-Channel shipping, close to the Seine, though Channel winds provide frequent ventilation, which usually keeps pollution from accumulating for long. Air quality stays fairly stable year-round thanks to frequent Atlantic frontal systems, with the calmest, driest summer spells occasionally allowing brief ozone peaks.
Today - 25 August | Pollution peaks at 18:00
AQI:
Moderate
47.3/100
PM2.5 (fine particles):
Good
7.0/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Good
12.4/100
O3 (ozone):
Moderate
47.3/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 26 August | Pollution peaks at 18:00
AQI:
Fair
38.6/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Good
19.3/100
O3 (ozone):
Fair
38.6/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Good
12.1/100
Pollen forecast in Gisors
View pollen forecastFrequently Asked Questions
Is air quality bad in Gisors right now?
On 25 August 2026, overall air quality in Gisors is moderate. AQI is the main air quality indicator at 47.3/100. Pollution peaks around 6:00 PM (O3: 47.3/100).
Will air quality be worse tomorrow in Gisors?
On 26 August 2026, air quality conditions in Gisors will be better than today, with AQI forecast at fair at 38.6/100. Pollution peaks around 6:00 PM (O3: 38.6/100).
When is air pollution at its worst in Gisors?
For people sensitive to both pollen and pollution in Gisors, spring days combining port traffic and cross-Channel shipping with the birch and oak peak are the ones to watch; Channel winds provide frequent ventilation, which tends to clear things fairly quickly.
Are air quality levels in Gisors 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: 26 August 2026 at 02:28 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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