City report · Hokkaido, Japan
Obihiro Air quality today
Air quality in Obihiro currently reads AQI 28 (Good): Air quality is satisfactory for everyone.
AQI 28
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.0
- tree cover
- 9.6%
- trees in this area
- 30.1K
- more trees needed
- 64.0K
Measured across a 2 km radius around 13 Chome Nishi 1 Jominami, Obihiro, Hokkaido, Japan (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Obihiro · AQI 28 (Good)
Obihiro's tree count comes to 30,129 trees across 12.56 km² of land, 20 points below the 30% tree-cover level considered healthy for this area, so roughly 64,024 more trees would close the gap.
Air quality detail
Air quality in Obihiro today: AQI 28, Good
Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Nishi 5 Jominami, Obihiro, Hokkaido, Japan (帯広市役所帯広市), 1 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.0
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Japan Atmospheric Environmental Regional Observation System (環境省大気汚染物質広域監視システム)
- 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 Obihiro's daily AQI at 19 on average, from 12 on Nov 6 to an hourly peak of 48 on Nov 5.
Where Obihiro stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Obihiro: Critically low
9.6% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
30,129
Target trees
94,153
More trees needed
64,024
CO₂ if planted / yr
1,409 t
Deforestation · 2001–2025
How much forest has Obihiro lost?
Since 2001, the area within 10 km of Obihiro has lost about 506 hectares of forest (about 710 football pitches): 9.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 24 hectares (4.7%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km southeast of the city center.
- Forest lost since 2001
- 506 haabout 710 football pitches
- Share of its forest
- 9.5%of what there was in 2000
- Cleared for good
- 24 hadeforestation: turned into farms, mines or towns
The worst year was 2012, when about 48 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 | 13 ha | 13 ha |
| 2003 | under 1 ha | 14 ha | 14 ha |
| 2004 | under 1 ha | 31 ha | 31 ha |
| 2005 | 1 ha | 15 ha | 16 ha |
| 2006 | under 1 ha | 26 ha | 27 ha |
| 2007 | 1 ha | 22 ha | 23 ha |
| 2008 | under 1 ha | 10 ha | 11 ha |
| 2009 | under 1 ha | 39 ha | 40 ha |
| 2010 | under 1 ha | 15 ha | 15 ha |
| 2011 | under 1 ha | 20 ha | 20 ha |
| 2012 | 6 ha | 42 ha | 48 ha |
| 2013 | under 1 ha | 4 ha | 5 ha |
| 2014 | 1 ha | 13 ha | 14 ha |
| 2015 | under 1 ha | 22 ha | 22 ha |
| 2016 | under 1 ha | 10 ha | 10 ha |
| 2017 | 5 ha | 13 ha | 18 ha |
| 2018 | under 1 ha | 20 ha | 20 ha |
| 2019 | under 1 ha | 22 ha | 23 ha |
| 2020 | 1 ha | 21 ha | 22 ha |
| 2021 | 1 ha | 24 ha | 25 ha |
| 2022 | under 1 ha | 16 ha | 16 ha |
| 2023 | under 1 ha | 30 ha | 31 ha |
| 2024 | under 1 ha | 17 ha | 17 ha |
| 2025 | under 1 ha | 26 ha | 26 ha |
What is causing deforestation around Obihiro?
- Loggingcan grow back93% · 469 ha
- Farms, pasture and plantationscleared for good2.3% · 11 ha
- Towns and roadscleared for good2.2% · 11 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
- 4,830 ha
- Forest in 2020
- 5,130 ha
- Overall change
- +302 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Obihiro grew from about 4,830 hectares to 5,130 hectares, a net gain of about 302 hectares (+6.3%). New forest grew on about 616 hectares, while 313 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 Obihiro
What is the air quality (AQI) in Obihiro right now?
The latest reading for Obihiro shows an AQI of 28 (Good), measured Nov 12, 00:00 local time by the Nishi 5 Jominami, Obihiro, Hokkaido, Japan (帯広市役所帯広市) ground monitoring station, 1 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Obihiro today?
At AQI 28 (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 Obihiro been like this week?
Over the last 7 days, the CAMS air-quality model put Obihiro's daily AQI at 19 on average, from 12 on Nov 6 to an hourly peak of 48 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 Obihiro lost since 2001?
Since 2001, the area within 10 km of Obihiro has lost about 506 hectares of forest (about 710 football pitches): 9.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 24 hectares (4.7%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Obihiro grew from about 4,830 hectares to 5,130 hectares, a net gain of about 302 hectares (+6.3%). New forest grew on about 616 hectares, while 313 hectares were lost.
What is the tree count in Obihiro?
Obihiro has an estimated 30,129 trees across the 12.56 km² of land measured — 9.6% tree cover, 20 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Obihiro need?
Obihiro needs roughly 64,024 more trees to close a 20-point shortfall against its 30% tree-cover target — about 1,409 t of extra CO₂ absorbed per year once grown.
How are Obihiro's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 13 Chome Nishi 1 Jominami, 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 13 Chome Nishi 1 Jominami; the tree count is an estimate derived from that cover.
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