City report · Russia
Ulan-Ude Air quality today
Air quality in Ulan-Ude currently reads AQI 29 (Good): Air quality is satisfactory for everyone.
AQI 29
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.9
- tree cover
- 15.4%
- trees in this area
- 45.7K
- more trees needed
- 43.3K
Measured across a 2 km radius around Ulan-Ude, Buryatia, Russia (12.57 km²), from a satellite image of Sep 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ulan-Ude · AQI 29 (Good)
Ulan-Ude's tree count comes to 45,671 trees across 11.87 km² of land, 15 points below the 30% tree-cover level considered healthy for this area, so roughly 43,299 more trees would close the gap.
Air quality detail
Air quality in Ulan-Ude today: AQI 29, Good
Main pollutant: PM2.5 · Observed Nov 10, 19:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.9
PM10
6.0
NO₂
14.0
O₃
54.0
SO₂
2.7
CO
462.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Ulan-Ude's daily AQI at 26 on average, from 17 on Nov 5 to an hourly peak of 55 on Nov 9.
Where Ulan-Ude stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ulan-Ude: Critically low
15.4% tree cover against a 30% healthy-neighborhood target, across 11.87 km² of land.
Trees in this area
45,671
Target trees
88,970
More trees needed
43,299
CO₂ if planted / yr
952.6 t
Deforestation · 2001–2025
How much forest has Ulan-Ude lost?
Since 2001, the area within 10 km of Ulan-Ude has lost about 427 hectares of forest (about 600 football pitches): 8.8% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 93 hectares (22%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 427 haabout 600 football pitches
- Share of its forest
- 8.8%of what there was in 2000
- Cleared for good
- 93 hadeforestation: turned into farms, mines or towns
The worst year was 2003, when about 172 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 2 ha | 2 ha | 4 ha |
| 2002 | under 1 ha | 2 ha | 2 ha |
| 2003 | 10 ha | 162 ha | 172 ha |
| 2004 | 1 ha | 16 ha | 17 ha |
| 2005 | 4 ha | 4 ha | 8 ha |
| 2006 | 8 ha | 57 ha | 65 ha |
| 2007 | 12 ha | 8 ha | 20 ha |
| 2008 | 3 ha | 27 ha | 30 ha |
| 2009 | 4 ha | 5 ha | 9 ha |
| 2010 | 5 ha | under 1 ha | 6 ha |
| 2011 | 3 ha | 13 ha | 16 ha |
| 2012 | 2 ha | 6 ha | 7 ha |
| 2013 | 1 ha | under 1 ha | 2 ha |
| 2014 | 2 ha | under 1 ha | 3 ha |
| 2015 | 5 ha | 8 ha | 14 ha |
| 2016 | 8 ha | 15 ha | 23 ha |
| 2017 | 5 ha | 3 ha | 8 ha |
| 2018 | under 1 ha | under 1 ha | 1 ha |
| 2019 | 5 ha | under 1 ha | 5 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 | 2 ha | under 1 ha | 2 ha |
| 2024 | 5 ha | 6 ha | 11 ha |
| 2025 | 4 ha | under 1 ha | 4 ha |
What is causing deforestation around Ulan-Ude?
- Wildfirescan grow back70% · 300 ha
- Towns and roadscleared for good20% · 86 ha
- Loggingcan grow back5.5% · 24 ha
Also: mining and energy, storms, floods and other natural causes, unknown causes.
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
- 8,470 ha
- Forest in 2020
- 7,720 ha
- Overall change
- −746 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ulan-Ude shrank from about 8,470 hectares to 7,720 hectares, a net loss of about 746 hectares (−8.8%). New forest grew on about 339 hectares, but 1,080 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 Ulan-Ude
Same 2 km radius, same index — so they compare directly.
- Angarsk264.1 km
Russia
- Tree cover
- 33%
- Air quality
- 9
- Darhan285.8 km
Mongolia
- Tree cover
- 1%
- Air quality
- 17
- Erdenet398.0 km
Mongolia
- Tree cover
- 1%
- Air quality
- 5
- Chita404.5 km
Russia
- Tree cover
- 28%
- Air quality
- 19
- Ulan Bator438.8 km
Mongolia
- Tree cover
- 4%
- Air quality
- 152
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Frequently asked
Questions about Ulan-Ude
What is the air quality (AQI) in Ulan-Ude right now?
The latest reading for Ulan-Ude shows an AQI of 29 (Good), observed Nov 10, 19:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Ulan-Ude today?
At AQI 29 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Ulan-Ude been like this week?
Over the last 7 days, the CAMS air-quality model put Ulan-Ude's daily AQI at 26 on average, from 17 on Nov 5 to an hourly peak of 55 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ulan-Ude lost since 2001?
Since 2001, the area within 10 km of Ulan-Ude has lost about 427 hectares of forest (about 600 football pitches): 8.8% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 93 hectares (22%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Ulan-Ude shrank from about 8,470 hectares to 7,720 hectares, a net loss of about 746 hectares (−8.8%). New forest grew on about 339 hectares, but 1,080 hectares were lost.
What is the tree count in Ulan-Ude?
Ulan-Ude has an estimated 45,671 trees across the 11.87 km² of land measured — 15.4% tree cover, 15 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Ulan-Ude need?
Ulan-Ude needs roughly 43,299 more trees to close a 15-point shortfall against its 30% tree-cover target — about 952.6 t of extra CO₂ absorbed per year once grown.
How are Ulan-Ude'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 Ulan-Ude; the tree count is an estimate derived from that cover.
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