Worst air pollution Beirut, today and tomorrow
Today (9 August): Air quality in Beirut is poor. AQI and O3 are poor; PM2.5, NO2, and PM1 are fair; SO2 and HCHO are medium; PM10 and CO are good. Pollution peaks around 11:00 AM (O3: 71.9/100).
Tomorrow (10 August 2026): Air quality in Beirut is fair. AQI improves to medium; PM2.5 decreases to good; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 57.3/100). 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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Beirut's air quality reflects the Mediterranean coastal plain's narrow Metn Mountain base position at 34 metres, with vehicle traffic on surrounding roads and the extraordinary vehicle density, ageing diesel generators — Lebanon's chronic power crisis driving pervasive private generator use — and port industrial corridor generating severely elevated PM2.5. The Mediterranean provides coastal ventilation, while the extraordinary private diesel generator dependence represents Beirut's most distinctive and acute local air quality challenge throughout most of the year.
Today - 9 August | Pollution peaks at 11:00
AQI:
Poor
71.9/100
PM2.5 (fine particles):
Fair
29.7/100
PM10 (coarse particles):
Good
8.3/100
NO2 (nitrogen dioxide):
Fair
20.4/100
O3 (ozone):
Poor
71.9/100
SO2 (sulfur dioxide):
Medium
45.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Medium
52.0/100
PM1 (ultrafine particles):
Fair
36.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 16:00
AQI:
Medium
57.3/100
PM2.5 (fine particles):
Good
19.9/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Fair
20.3/100
O3 (ozone):
Medium
57.3/100
SO2 (sulfur dioxide):
Medium
42.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Medium
46.6/100
PM1 (ultrafine particles):
Fair
21.6/100
Frequently Asked Questions
Is air quality bad in Beirut right now?
On 9 August 2026, overall air quality in Beirut is poor. AQI is the main air quality indicator at 71.9/100. Pollution peaks around 11:00 AM (O3: 71.9/100).
Will air quality be worse tomorrow in Beirut?
On 10 August 2026, air quality conditions in Beirut will be better than today, with PM1 forecast at fair at 21.6/100. Pollution peaks around 4:00 PM (O3: 57.3/100).
When is air pollution at its worst in Beirut?
Pollution in Beirut typically rises when road traffic and harbour and shipping traffic combine, especially once windblown dust events occur. These wind events can carry dust in from the surrounding arid landscape. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Beirut 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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