City report · Tehran, Iran
Tehran Air quality today
Air quality in Tehran currently reads AQI 73 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 73
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 17.4
- tree cover
- 7.5%
- trees in this area
- 23.6K
- more trees needed
- 70.7K
Measured across a 2 km radius around Laleh Zar, District 12, Tehran, Tehran Province, Iran (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Tehran · AQI 73 (Moderate)
Tehran's tree count comes to 23,562 trees across 12.57 km², 22 points below the 30% tree-cover level considered healthy for this area, so roughly 70,686 more trees would close the gap.
Air quality detail
Air quality in Tehran today: AQI 73, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 12:30 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
17.4
PM10
31.0
NO₂
25.9
O₃
75.0
SO₂
22.6
CO
1413.0
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Tehran's daily AQI at 93 on average, from 64 on Nov 8 to an hourly peak of 172 on Nov 10.
Where Tehran stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Tehran: Critically low
7.5% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
23,562
Target trees
94,248
More trees needed
70,686
CO₂ if planted / yr
1,555 t
Deforestation · 2001–2025
How much forest has Tehran lost?
There was almost no forest around Tehran in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 199 ha
- Forest in 2020
- 371 ha
- Overall change
- +172 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Tehran grew from about 199 hectares to 371 hectares, a net gain of about 172 hectares (+86%). New forest grew on about 173 hectares, while 2 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Tehran
Same 2 km radius, same index — so they compare directly.
- Eslamshahr23.1 km
Iran
- Tree cover
- 2%
- Air quality
- 168
- Qods28.4 km
Iran
- Tree cover
- 4%
- Air quality
- 177
- Qarchak32.7 km
Iran
- Tree cover
- 4%
- Air quality
- 151
- Shahrīār33.1 km
Iran
- Tree cover
- 34%
- Air quality
- 193
- Pākdasht33.7 km
Iran
- Tree cover
- 2%
- Air quality
- 73
- Pardīs35.8 km
Iran
- Tree cover
- 1%
- Air quality
- 56
Also compared:Tehran vs MashhadTehran vs IsfahanTehran vs KarajTehran vs Tabriz
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Frequently asked
Questions about Tehran
What is the air quality (AQI) in Tehran right now?
The latest reading for Tehran shows an AQI of 73 (Moderate), observed Nov 11, 12:30 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Tehran today?
At AQI 73 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Tehran been like this week?
Over the last 7 days, the CAMS air-quality model put Tehran's daily AQI at 93 on average, from 64 on Nov 8 to an hourly peak of 172 on Nov 10. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Tehran lost since 2001?
There was almost no forest around Tehran in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Tehran grew from about 199 hectares to 371 hectares, a net gain of about 172 hectares (+86%). New forest grew on about 173 hectares, while 2 hectares were lost.
What is the tree count in Tehran?
Tehran has an estimated 23,562 trees across the 12.57 km² measured — 7.5% tree cover, 22 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Tehran need?
Tehran needs roughly 70,686 more trees to close a 22-point shortfall against its 30% tree-cover target — about 1,555 t of extra CO₂ absorbed per year once grown.
How are Tehran's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Laleh Zar; the tree count is an estimate derived from that cover.
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