City report · Hamadan Province, Iran
Hamadān Air quality today
Air quality in Hamadān currently reads AQI 71 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 71
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 21.7
- tree cover
- 5.8%
- trees in this area
- 18.2K
- more trees needed
- 76.0K
Measured across a 2 km radius around District 4, Hamedan, Hamadan Province, Iran (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hamadān · AQI 71 (Moderate)
Hamadān's tree count comes to 18,221 trees across 12.57 km², 24 points below the 30% tree-cover level considered healthy for this area, so roughly 76,027 more trees would close the gap.
Air quality detail
Air quality in Hamadān today: AQI 71, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 21:30 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
21.7
PM10
29.4
NO₂
76.3
O₃
2.0
SO₂
15.8
CO
1061.0
- 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 Hamadān's daily AQI at 49 on average, from 32 on Nov 9 to an hourly peak of 71 on Nov 10.
Where Hamadān stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hamadān: Critically low
5.8% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
18,221
Target trees
94,248
More trees needed
76,027
CO₂ if planted / yr
1,673 t
Deforestation · 2001–2025
How much forest has Hamadān lost?
Almost no forest has been lost around Hamadān since 2001: less than 1 hectare of the 310 hectares there in 2000.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 391 ha
- Forest in 2020
- 642 ha
- Overall change
- +251 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hamadān grew from about 391 hectares to 642 hectares, a net gain of about 251 hectares (+64%). New forest grew on about 252 hectares, while under 1 hectare was 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 Hamadān
Same 2 km radius, same index — so they compare directly.
- Malāyer62.1 km
Iran
- Tree cover
- 5%
- Air quality
- 19
- Borūjerd102.6 km
Iran
- Tree cover
- 7%
- Air quality
- 57
- Arāk133.8 km
Iran
- Tree cover
- 4%
- Air quality
- 27
- Kermanshah143.3 km
Iran
- Tree cover
- 3%
- Air quality
- 57
- Khorramabad146.6 km
Iran
- Tree cover
- 6%
- Air quality
- 18
- Sanandaj149.4 km
Iran
- Tree cover
- 3%
- Air quality
- 32
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Frequently asked
Questions about Hamadān
What is the air quality (AQI) in Hamadān right now?
The latest reading for Hamadān shows an AQI of 71 (Moderate), observed Nov 10, 21:30 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 Hamadān today?
At AQI 71 (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 Hamadān been like this week?
Over the last 7 days, the CAMS air-quality model put Hamadān's daily AQI at 49 on average, from 32 on Nov 9 to an hourly peak of 71 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Hamadān lost since 2001?
Almost no forest has been lost around Hamadān since 2001: less than 1 hectare of the 310 hectares there in 2000. Comparing satellite maps from 2000 and 2020, the forest around Hamadān grew from about 391 hectares to 642 hectares, a net gain of about 251 hectares (+64%). New forest grew on about 252 hectares, while under 1 hectare was lost.
What is the tree count in Hamadān?
Hamadān has an estimated 18,221 trees across the 12.57 km² measured — 5.8% tree cover, 24 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hamadān need?
Hamadān needs roughly 76,027 more trees to close a 24-point shortfall against its 30% tree-cover target — about 1,673 t of extra CO₂ absorbed per year once grown.
How are Hamadān'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 District 4; the tree count is an estimate derived from that cover.
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