Most polluted cities in Lebanon

3 measured cities ranked by PM2.5, last 7 days. Worst: Jounieh at 9.6 µg/m³, #584 in the world.

#	City	µg/m³
1	Jounieh low-cost sensorsMount Lebanon	9.6
2	Beirut low-cost sensorsBeirut	6.7
3	Sidon low-cost sensorsSouth Governorate	5.4

Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Lebanon cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City	7-day estimate	Band
Tripoli estimated	≈ 13 µg/m³	Moderate
Tyre estimated	≈ 9 µg/m³	Good
Aley estimated	≈ 15 µg/m³	Moderate
Nabatîyé et Tahta estimated	≈ 13 µg/m³	Moderate
Habboûch estimated	≈ 17 µg/m³	Moderate
Zahlé estimated	≈ 18 µg/m³	Moderate
Aarsâl estimated	≈ 16 µg/m³	Moderate
Ghazieh estimated	≈ 8 µg/m³	Good
Baalbek estimated	≈ 16 µg/m³	Moderate
Chmistâr estimated	≈ 18 µg/m³	Moderate
En Nâqoûra estimated	≈ 9 µg/m³	Good
El Hermel estimated	≈ 12 µg/m³	Moderate
Byblos estimated	≈ 15 µg/m³	Moderate
Bsharri estimated	≈ 13 µg/m³	Moderate

Regions

Beirut 1 Mount Lebanon 1 South Governorate 1

Updated 2026-10-01 05:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.