City report · Orenburg Oblast, Russia
Orsk Air quality today
Air quality in Orsk currently reads AQI 4 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 4
Good
- PM2.5, fine particles (µg/m³)
- 0.9
- tree cover
- 25.1%
- trees in this area
- 78.7K
- more trees needed
- 15.4K
Measured across a 2 km radius around Leninskiy Rayon, Orsk, Orenburg Oblast, Russia (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Orsk · AQI 4 (Good)
Orsk's tree count comes to 78,696 trees across 12.54 km² of land, 5 points below the 30% tree-cover level considered healthy for this area, so roughly 15,363 more trees would close the gap.
Air quality detail
Air quality in Orsk today: AQI 4, Good
Main pollutant: PM2.5 · Observed Nov 11, 15:00 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
0.9
PM10
0.9
NO₂
3.1
O₃
33.0
SO₂
4.5
CO
196.0
- 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 Orsk's daily AQI at 33 on average, from 15 on Nov 11 to an hourly peak of 77 on Nov 8.
Where Orsk stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Orsk: Below target
25.1% tree cover against a 30% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
78,696
Target trees
94,059
More trees needed
15,363
CO₂ if planted / yr
338.0 t
Deforestation · 2001–2025
How much forest has Orsk lost?
Since 2001, the area within 10 km of Orsk has lost about 10 hectares of forest (about 14 football pitches): 1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 1 hectare (11%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 10 haabout 14 football pitches
- Share of its forest
- 1%of what there was in 2000
- Cleared for good
- 1 hadeforestation: turned into farms, mines or towns
The worst year was 2022, when about 10 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 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 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 | 9 ha | 10 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 Orsk?
- Loggingcan grow back79% · 8 ha
- Towns and roadscleared for good9.9% · 1 ha
- Wildfirescan grow back3% · under 1 ha
Also: mining and energy, 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
- 480 ha
- Forest in 2020
- 766 ha
- Overall change
- +286 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Orsk grew from about 480 hectares to 766 hectares, a net gain of about 286 hectares (+60%). New forest grew on about 288 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 Orsk
Same 2 km radius, same index — so they compare directly.
- Novotroitsk12.7 km
Russia
- Tree cover
- 25%
- Air quality
- 29
- Aktobe139.0 km
Kazakhstan
- Tree cover
- 9%
- Air quality
- 13
- Orenburg242.0 km
Russia
- Tree cover
- 25%
- Air quality
- 14
- Magnitogorsk243.4 km
Russia
- Tree cover
- 30%
- Air quality
- 2
- Salavat296.4 km
Russia
- Tree cover
- 38%
- Air quality
- 18
- Sterlitamak317.9 km
Russia
- Tree cover
- 33%
- Air quality
- 11
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Frequently asked
Questions about Orsk
What is the air quality (AQI) in Orsk right now?
The latest reading for Orsk shows an AQI of 4 (Good), observed Nov 11, 15:00 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 Orsk today?
At AQI 4 (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 Orsk been like this week?
Over the last 7 days, the CAMS air-quality model put Orsk's daily AQI at 33 on average, from 15 on Nov 11 to an hourly peak of 77 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Orsk lost since 2001?
Since 2001, the area within 10 km of Orsk has lost about 10 hectares of forest (about 14 football pitches): 1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 1 hectare (11%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Orsk grew from about 480 hectares to 766 hectares, a net gain of about 286 hectares (+60%). New forest grew on about 288 hectares, while 2 hectares were lost.
What is the tree count in Orsk?
Orsk has an estimated 78,696 trees across the 12.54 km² of land measured — 25.1% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Orsk need?
Orsk needs roughly 15,363 more trees to close a 5-point shortfall against its 30% tree-cover target — about 338.0 t of extra CO₂ absorbed per year once grown.
How are Orsk'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 Leninskiy Rayon; the tree count is an estimate derived from that cover.
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