Worst air pollution Bois de Boulogne - Paris, today and tomorrow
Today (20 September): Air quality in Bois de Boulogne is fair. AQI, PM2.5, and NO2 are fair; PM10, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 AM (PM2.5: 22.9/100).
Tomorrow (21 September 2026): Air quality in Bois de Boulogne is fair. PM10 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 34.8/100). Airmine updates local air quality forecasts four times daily.
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Paris's Bois de Boulogne sees air quality shaped by the Périphérique ring road along the forest edge, with the woodland interior significantly cleaner than its boundary roads. Westerly winds periodically flush cleaner air from the open Île-de-France countryside through the park.
Today - 20 September | Pollution peaks at 00:00
AQI:
Fair
22.9/100
PM2.5 (fine particles):
Fair
22.9/100
PM10 (coarse particles):
Good
16.5/100
NO2 (nitrogen dioxide):
Fair
22.5/100
O3 (ozone):
Good
18.1/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.7/100
HCHO (formaldehyde):
Good
11.8/100
PM1 (ultrafine particles):
Good
14.0/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 17:00
AQI:
Fair
34.8/100
PM2.5 (fine particles):
Fair
24.9/100
PM10 (coarse particles):
Fair
20.7/100
NO2 (nitrogen dioxide):
Fair
32.5/100
O3 (ozone):
Fair
34.8/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
14.5/100
PM1 (ultrafine particles):
Good
17.6/100
Other Landmarks in Paris
Sports venues in Paris
Frequently Asked Questions
Is air quality bad in Bois de Boulogne right now?
On 20 September 2026, overall air quality in Bois de Boulogne is fair. AQI is the main air quality indicator at 22.9/100. Pollution peaks around 12:00 AM (PM2.5: 22.9/100).
Will air quality be worse tomorrow in Bois de Boulogne?
On 21 September 2026, air quality conditions in Bois de Boulogne will be similar to today, with AQI forecast at fair at 34.8/100. Pollution peaks around 5:00 PM (O3: 34.8/100).
When is air pollution at its worst in Bois de Boulogne?
Residents of Bois de Boulogne in Paris notice the most discomfort when traffic and urban heating overlap with heavy birch and plane pollen; the Seine corridor channels westerly winds through the city, limiting how long conditions stay poor.
Are air quality levels in Bois de Boulogne 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: 20 September 2026 at 14:33 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.
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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