City report · Aichi, Japan
Tōkai Air quality today
Air quality in Tōkai currently reads AQI 12 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 12
Good
- PM2.5, fine particles (µg/m³)
- 1.7
- tree cover
- 19.4%
- trees in this area
- 60.9K
- more trees needed
- 33.3K
Measured across a 2 km radius around Agarito Fukishimamachi, Tokai, Aichi 476-0011, Japan (12.57 km²), from a satellite image of Aug 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Tōkai · AQI 12 (Good)
Tōkai's tree count comes to 60,886 trees across 12.56 km² of land, 11 points below the 30% tree-cover level considered healthy for this area, so roughly 33,268 more trees would close the gap.
Air quality detail
Air quality in Tōkai today: AQI 12, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 245 km, e.g. Matsumoto and Fuchu
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.7
PM10
4.9
NO₂
6.8
O₃
80.0
SO₂
4.6
CO
158.0
- 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 Tōkai's daily AQI at 48 on average, from 31 on Nov 7 to an hourly peak of 89 on Nov 5.
Where Tōkai stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Tōkai: Below target
19.4% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
60,886
Target trees
94,154
More trees needed
33,268
CO₂ if planted / yr
731.9 t
Deforestation · 2001–2025
How much forest has Tōkai lost?
Since 2001, the area within 10 km of Tōkai has lost about 47 hectares of forest (about 66 football pitches): 5.2% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 47 haabout 66 football pitches
- Share of its forest
- 5.2%of what there was in 2000
- Cleared for good
- 41 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 13 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 | 1 ha |
| 2004 | under 1 ha | under 1 ha | 1 ha |
| 2005 | 3 ha | under 1 ha | 3 ha |
| 2006 | 3 ha | under 1 ha | 3 ha |
| 2007 | 5 ha | under 1 ha | 6 ha |
| 2008 | 12 ha | under 1 ha | 13 ha |
| 2009 | under 1 ha | under 1 ha | 1 ha |
| 2010 | 3 ha | under 1 ha | 3 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 | 2 ha | under 1 ha | 3 ha |
| 2020 | 4 ha | under 1 ha | 4 ha |
| 2021 | 1 ha | under 1 ha | 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 1 ha | under 1 ha | 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | 1 ha |
What is causing deforestation around Tōkai?
- Towns and roadscleared for good87% · 41 ha
- Unknown causescause unknown14% · 6 ha
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
- 1,800 ha
- Forest in 2020
- 1,790 ha
- Overall change
- −11 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Tōkai stayed about the same size, at about 1,790 hectares: new forest grew on about 80 hectares, and about 91 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 Tōkai
What is the air quality (AQI) in Tōkai right now?
The latest reading for Tōkai shows an AQI of 12 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 245 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Tōkai 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 Tōkai been like this week?
Over the last 7 days, the CAMS air-quality model put Tōkai's daily AQI at 48 on average, from 31 on Nov 7 to an hourly peak of 89 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 Tōkai lost since 2001?
Since 2001, the area within 10 km of Tōkai has lost about 47 hectares of forest (about 66 football pitches): 5.2% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Tōkai stayed about the same size, at about 1,790 hectares: new forest grew on about 80 hectares, and about 91 hectares were lost.
What is the tree count in Tōkai?
Tōkai has an estimated 60,886 trees across the 12.56 km² of land measured — 19.4% tree cover, 11 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Tōkai need?
Tōkai needs roughly 33,268 more trees to close a 11-point shortfall against its 30% tree-cover target — about 731.9 t of extra CO₂ absorbed per year once grown.
How are Tōkai'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 Agarito Fukishimamachi; the tree count is an estimate derived from that cover.
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