City report · Armenia
Yerevan Air quality today
Air quality in Yerevan currently reads AQI 123 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 123
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 44.6
- tree cover
- 17.9%
- trees in this area
- 56.2K
- more trees needed
- 53.7K
Measured across a 2 km radius around Kentron, Yerevan, Armenia (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Yerevan · AQI 123 (Unhealthy for sensitive groups)
Yerevan's tree count comes to 56,235 trees across 12.57 km², 17 points below the 35% tree-cover level considered healthy for this area, so roughly 53,721 more trees would close the gap.
Air quality detail
Air quality in Yerevan today: AQI 123, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 20:04 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 32 Aram street, Yerevan, Armenia, 400 m away · median of 20 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
44.6
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, Clarity, Anton Vlasov, Asatryan studio balkon, Tubal Cain
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Yerevan's daily AQI at 30 on average, from 20 on Nov 9 to an hourly peak of 55 on Nov 5.
Where Yerevan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Yerevan: Critically low
17.9% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
56,235
Target trees
109,956
More trees needed
53,721
CO₂ if planted / yr
1,182 t
Deforestation · 2001–2025
How much forest has Yerevan lost?
There was very little forest around Yerevan in 2000, about 90 hectares, and about 9 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2018: satellite photo from July 2018 of a 5 × 5 km area in the city center.
The worst year was 2004, when about 3 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 3 ha | under 1 ha | 3 ha |
| 2005 | 1 ha | under 1 ha | 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Yerevan?
- Towns and roadscleared for good75% · 7 ha
- Farms, pasture and plantationscleared for good8% · under 1 ha
- Unknown causescause unknown18% · 2 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 967 ha
- Forest in 2020
- 1,130 ha
- Overall change
- +160 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Yerevan grew from about 967 hectares to 1,130 hectares, a net gain of about 160 hectares (+17%). New forest grew on about 179 hectares, while 19 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 Yerevan
Same 2 km radius, same index — so they compare directly.
- Iğdır48.8 km
Turkey
- Tree cover
- 11%
- Air quality
- 76
- Naxçıvan132.4 km
Azerbaijan
- Tree cover
- 8%
- Air quality
- 62
- Ağrı135.7 km
Turkey
- Tree cover
- 10%
- Air quality
- 72
Also compared:Yerevan vs Kapan
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Frequently asked
Questions about Yerevan
What is the air quality (AQI) in Yerevan right now?
The latest reading for Yerevan shows an AQI of 123 (Unhealthy for sensitive groups), measured Nov 11, 20:04 local time by 20 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 32 Aram street, Yerevan, Armenia, 400 m away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Yerevan today?
At AQI 123 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Yerevan been like this week?
Over the last 7 days, the CAMS air-quality model put Yerevan's daily AQI at 30 on average, from 20 on Nov 9 to an hourly peak of 55 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Yerevan lost since 2001?
There was very little forest around Yerevan in 2000, about 90 hectares, and about 9 hectares of it has been lost 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 Yerevan grew from about 967 hectares to 1,130 hectares, a net gain of about 160 hectares (+17%). New forest grew on about 179 hectares, while 19 hectares were lost.
What is the tree count in Yerevan?
Yerevan has an estimated 56,235 trees across the 12.57 km² measured — 17.9% tree cover, 17 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Yerevan need?
Yerevan needs roughly 53,721 more trees to close a 17-point shortfall against its 35% tree-cover target — about 1,182 t of extra CO₂ absorbed per year once grown.
How are Yerevan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Kentron, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Kentron; the tree count is an estimate derived from that cover.
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