City report · Kaluga Oblast, Russia
Obninsk Air quality today
Air quality in Obninsk currently reads AQI 12 (Good): Air quality is satisfactory for everyone.
AQI 12
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 2.2
- tree cover
- 41.9%
- trees in this area
- 132K
- more trees needed
- 0
Measured across a 2 km radius around Obninsk, Kaluga Oblast, Russia (12.57 km²), from a satellite image of Sep 10, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Obninsk · AQI 12 (Good)
Obninsk's tree count comes to 131,501 trees across 12.56 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Obninsk today: AQI 12, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 105 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 105 km, e.g. Odintsovo and Moscow
Health signal
Air quality is satisfactory for everyone.
PM2.5
2.2
PM10
7.0
NO₂
6.7
O₃
56.0
SO₂
7.2
CO
177.0
- 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 Obninsk's daily AQI at 17 on average, from 13 on Nov 6 to an hourly peak of 35 on Nov 10.
Where Obninsk stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Obninsk: Healthy tree cover
41.9% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
131,501
Target trees
131,501
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Obninsk lost?
Since 2001, the area within 10 km of Obninsk has lost about 970 hectares of forest (about 1,400 football pitches): 6% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 370 hectares (38%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 5 km south of the city center.
- Forest lost since 2001
- 970 haabout 1,400 football pitches
- Share of its forest
- 6%of what there was in 2000
- Cleared for good
- 370 hadeforestation: turned into farms, mines or towns
The worst year was 2011, when about 96 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 | 6 ha | 16 ha | 22 ha |
| 2002 | 5 ha | 21 ha | 26 ha |
| 2003 | 5 ha | 19 ha | 24 ha |
| 2004 | 11 ha | 26 ha | 37 ha |
| 2005 | 18 ha | 27 ha | 45 ha |
| 2006 | 7 ha | 18 ha | 25 ha |
| 2007 | 14 ha | 43 ha | 58 ha |
| 2008 | 35 ha | 8 ha | 43 ha |
| 2009 | 12 ha | 20 ha | 32 ha |
| 2010 | 21 ha | 14 ha | 35 ha |
| 2011 | 44 ha | 52 ha | 96 ha |
| 2012 | 49 ha | 39 ha | 88 ha |
| 2013 | 9 ha | 42 ha | 51 ha |
| 2014 | 26 ha | 46 ha | 73 ha |
| 2015 | 16 ha | 19 ha | 35 ha |
| 2016 | 9 ha | 26 ha | 35 ha |
| 2017 | 14 ha | 15 ha | 29 ha |
| 2018 | 11 ha | 30 ha | 40 ha |
| 2019 | 6 ha | 17 ha | 22 ha |
| 2020 | 5 ha | 9 ha | 14 ha |
| 2021 | 16 ha | 5 ha | 21 ha |
| 2022 | 4 ha | 15 ha | 19 ha |
| 2023 | 4 ha | 25 ha | 29 ha |
| 2024 | 8 ha | 19 ha | 27 ha |
| 2025 | 18 ha | 30 ha | 47 ha |
What is causing deforestation around Obninsk?
- Loggingcan grow back59% · 576 ha
- Towns and roadscleared for good33% · 317 ha
- Mining and energycleared for good4.3% · 41 ha
Also: farms, pasture and plantations, storms, floods and other natural causes, wildfires, 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
- 15,600 ha
- Forest in 2020
- 15,000 ha
- Overall change
- −622 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Obninsk shrank from about 15,600 hectares to 15,000 hectares, a net loss of about 622 hectares (−4%). New forest grew on about 242 hectares, but 863 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
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Frequently asked
Questions about Obninsk
What is the air quality (AQI) in Obninsk right now?
The latest reading for Obninsk shows an AQI of 12 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 105 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Obninsk today?
At AQI 12 (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 Obninsk been like this week?
Over the last 7 days, the CAMS air-quality model put Obninsk's daily AQI at 17 on average, from 13 on Nov 6 to an hourly peak of 35 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 Obninsk lost since 2001?
Since 2001, the area within 10 km of Obninsk has lost about 970 hectares of forest (about 1,400 football pitches): 6% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 370 hectares (38%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Obninsk shrank from about 15,600 hectares to 15,000 hectares, a net loss of about 622 hectares (−4%). New forest grew on about 242 hectares, but 863 hectares were lost.
What is the tree count in Obninsk?
Obninsk has an estimated 131,501 trees across the 12.56 km² of land measured — 41.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Obninsk need?
Obninsk has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Obninsk'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 Obninsk; the tree count is an estimate derived from that cover.
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