City report · Tokyo, Japan
Ōme Air quality today
Air quality in Ōme currently reads AQI 15 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 15
Good
- PM2.5, fine particles (µg/m³)
- 2.4
- tree cover
- 74.7%
- trees in this area
- 235K
- more trees needed
- 0
Measured across a 2 km radius around 2 Chome Hatanaka, Ome, Tokyo 198-0061, Japan (12.57 km²), from a satellite image of Aug 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ōme · AQI 15 (Good)
Ōme's tree count comes to 234,677 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Ōme today: AQI 15, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 16 ground-station cities within 105 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 16 station cities within 105 km, e.g. Fuchu and Niiza
Health signal
Air quality is satisfactory for everyone.
PM2.5
2.4
PM10
10.2
NO₂
18.3
O₃
62.0
SO₂
14.8
CO
161.0
- 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 Ōme's daily AQI at 62 on average, from 39 on Nov 5 to an hourly peak of 99 on Nov 6.
Where Ōme stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ōme: Healthy tree cover
74.7% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
234,677
Target trees
234,677
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Ōme lost?
Since 2001, the area within 10 km of Ōme has lost about 658 hectares of forest (about 920 football pitches): 3.1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 155 hectares (24%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from September 2017 of a 5 × 5 km area about 3 km southwest of the city center.
- Forest lost since 2001
- 658 haabout 920 football pitches
- Share of its forest
- 3.1%of what there was in 2000
- Cleared for good
- 155 hadeforestation: turned into farms, mines or towns
The worst year was 2018, when about 54 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 | 7 ha | 11 ha | 18 ha |
| 2002 | 4 ha | 12 ha | 16 ha |
| 2003 | 4 ha | 4 ha | 8 ha |
| 2004 | 5 ha | 4 ha | 9 ha |
| 2005 | 5 ha | 9 ha | 14 ha |
| 2006 | 5 ha | 8 ha | 13 ha |
| 2007 | 14 ha | 18 ha | 32 ha |
| 2008 | 18 ha | 13 ha | 30 ha |
| 2009 | 6 ha | 27 ha | 33 ha |
| 2010 | 10 ha | 44 ha | 54 ha |
| 2011 | 7 ha | 23 ha | 30 ha |
| 2012 | 5 ha | 48 ha | 53 ha |
| 2013 | 4 ha | 10 ha | 14 ha |
| 2014 | 2 ha | 12 ha | 14 ha |
| 2015 | 6 ha | 17 ha | 22 ha |
| 2016 | 8 ha | 30 ha | 38 ha |
| 2017 | 5 ha | 16 ha | 20 ha |
| 2018 | 12 ha | 42 ha | 54 ha |
| 2019 | 3 ha | 14 ha | 17 ha |
| 2020 | 2 ha | 21 ha | 23 ha |
| 2021 | 16 ha | 23 ha | 39 ha |
| 2022 | 3 ha | 36 ha | 39 ha |
| 2023 | 2 ha | 24 ha | 26 ha |
| 2024 | 4 ha | 14 ha | 18 ha |
| 2025 | 2 ha | 25 ha | 26 ha |
What is causing deforestation around Ōme?
- Loggingcan grow back73% · 479 ha
- Towns and roadscleared for good17% · 109 ha
- Mining and energycleared for good7% · 46 ha
Also: 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
- 22,000 ha
- Forest in 2020
- 21,900 ha
- Overall change
- −183 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ōme stayed about the same size, at about 21,900 hectares: new forest grew on about 93 hectares, and about 276 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 Ōme
What is the air quality (AQI) in Ōme right now?
The latest reading for Ōme shows an AQI of 15 (Good), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 16 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 Ōme today?
At AQI 15 (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 Ōme been like this week?
Over the last 7 days, the CAMS air-quality model put Ōme's daily AQI at 62 on average, from 39 on Nov 5 to an hourly peak of 99 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ōme lost since 2001?
Since 2001, the area within 10 km of Ōme has lost about 658 hectares of forest (about 920 football pitches): 3.1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 155 hectares (24%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Ōme stayed about the same size, at about 21,900 hectares: new forest grew on about 93 hectares, and about 276 hectares were lost.
What is the tree count in Ōme?
Ōme has an estimated 234,677 trees across the 12.57 km² measured — 74.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Ōme need?
Ōme has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Ōme'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 2 Chome Hatanaka; the tree count is an estimate derived from that cover.
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