City report · Ehime, Japan
Imabari Air quality today
Air quality in Imabari 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
- 13.9%
- trees in this area
- 28.4K
- more trees needed
- 32.9K
Measured across a 2 km radius around 3 Chome Muroyacho, Imabari, Ehime 794-0022, Japan (12.57 km²), from a satellite image of Aug 30, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Imabari · AQI 28 (Good)
Imabari's tree count comes to 28,428 trees across 8.18 km² of land, 16 points below the 30% tree-cover level considered healthy for this area, so roughly 32,927 more trees would close the gap.
Air quality detail
Air quality in Imabari 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 · Asahimachi, Imabari, Ehime, Japan (今治旭今治市), 800 m away
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.0
PM10
7.6
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 Imabari's daily AQI at 38 on average, from 28 on Nov 10 to an hourly peak of 68 on Nov 6.
Where Imabari stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Imabari: Critically low
13.9% tree cover against a 30% healthy-neighborhood target, across 8.18 km² of land.
Trees in this area
28,428
Target trees
61,355
More trees needed
32,927
CO₂ if planted / yr
724.4 t
Deforestation · 2001–2025
How much forest has Imabari lost?
Since 2001, the area within 10 km of Imabari has lost about 403 hectares of forest (about 560 football pitches): 5.1% of the forest it had in 2000. Most of it (56%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 403 haabout 560 football pitches
- Share of its forest
- 5.1%of what there was in 2000
- Cleared for good
- 227 hadeforestation: turned into farms, mines or towns
The worst year was 2025, when about 168 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 | 3 ha | 2 ha | 5 ha |
| 2002 | 11 ha | 5 ha | 16 ha |
| 2003 | 13 ha | 2 ha | 14 ha |
| 2004 | 31 ha | 3 ha | 34 ha |
| 2005 | 13 ha | 2 ha | 15 ha |
| 2006 | 11 ha | under 1 ha | 12 ha |
| 2007 | 11 ha | 3 ha | 14 ha |
| 2008 | 9 ha | 16 ha | 26 ha |
| 2009 | 5 ha | 30 ha | 36 ha |
| 2010 | 3 ha | 2 ha | 5 ha |
| 2011 | 14 ha | 3 ha | 16 ha |
| 2012 | 4 ha | 2 ha | 6 ha |
| 2013 | 4 ha | under 1 ha | 4 ha |
| 2014 | 2 ha | 1 ha | 3 ha |
| 2015 | 5 ha | under 1 ha | 5 ha |
| 2016 | 3 ha | 5 ha | 8 ha |
| 2017 | 1 ha | under 1 ha | 2 ha |
| 2018 | 2 ha | 1 ha | 3 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 1 ha | under 1 ha | 2 ha |
| 2021 | 4 ha | under 1 ha | 4 ha |
| 2022 | 2 ha | 1 ha | 4 ha |
| 2023 | 1 ha | under 1 ha | 1 ha |
| 2024 | 1 ha | under 1 ha | 1 ha |
| 2025 | 72 ha | 96 ha | 168 ha |
What is causing deforestation around Imabari?
- Towns and roadscleared for good55% · 220 ha
- Wildfirescan grow back31% · 125 ha
- Loggingcan grow back10% · 41 ha
Also: farms, pasture and plantations, 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
- 8,790 ha
- Forest in 2020
- 8,720 ha
- Overall change
- −77 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Imabari stayed about the same size, at about 8,720 hectares: new forest grew on about 95 hectares, and about 172 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 Imabari
What is the air quality (AQI) in Imabari right now?
The latest reading for Imabari shows an AQI of 28 (Good), measured Nov 12, 00:00 local time by the Asahimachi, Imabari, Ehime, Japan (今治旭今治市) ground monitoring station, 800 m away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Imabari 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 Imabari been like this week?
Over the last 7 days, the CAMS air-quality model put Imabari's daily AQI at 38 on average, from 28 on Nov 10 to an hourly peak of 68 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 Imabari lost since 2001?
Since 2001, the area within 10 km of Imabari has lost about 403 hectares of forest (about 560 football pitches): 5.1% of the forest it had in 2000. Most of it (56%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Imabari stayed about the same size, at about 8,720 hectares: new forest grew on about 95 hectares, and about 172 hectares were lost.
What is the tree count in Imabari?
Imabari has an estimated 28,428 trees across the 8.18 km² of land measured — 13.9% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Imabari need?
Imabari needs roughly 32,927 more trees to close a 16-point shortfall against its 30% tree-cover target — about 724.4 t of extra CO₂ absorbed per year once grown.
How are Imabari's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 3 Chome Muroyacho, 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 3 Chome Muroyacho; the tree count is an estimate derived from that cover.
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