City report · Aichi, Japan
Handa Air quality today
Air quality in Handa currently reads AQI 11 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 11
Good
- PM2.5, fine particles (µg/m³)
- 1.5
- tree cover
- 7.9%
- trees in this area
- 23.9K
- more trees needed
- 66.7K
Measured across a 2 km radius around 1 Chome Shinmeicho, Handa, Aichi 475-0826, Japan (12.57 km²), from a satellite image of Aug 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Handa · AQI 11 (Good)
Handa's tree count comes to 23,851 trees across 12.08 km² of land, 22 points below the 30% tree-cover level considered healthy for this area, so roughly 66,721 more trees would close the gap.
Air quality detail
Air quality in Handa today: AQI 11, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 250 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 250 km, e.g. Matsumoto and Fuchu
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.5
PM10
4.5
NO₂
10.2
O₃
76.0
SO₂
5.4
CO
149.0
- 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 Handa's daily AQI at 42 on average, from 31 on Nov 7 to an hourly peak of 67 on Nov 9.
Where Handa stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Handa: Critically low
7.9% tree cover against a 30% healthy-neighborhood target, across 12.08 km² of land.
Trees in this area
23,851
Target trees
90,572
More trees needed
66,721
CO₂ if planted / yr
1,468 t
Deforestation · 2001–2025
How much forest has Handa lost?
Since 2001, the area within 10 km of Handa has lost about 134 hectares of forest (about 190 football pitches): 7.2% of the forest it had in 2000. Most of it (93%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 134 haabout 190 football pitches
- Share of its forest
- 7.2%of what there was in 2000
- Cleared for good
- 124 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 18 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 | 5 ha | under 1 ha | 6 ha |
| 2002 | 5 ha | under 1 ha | 5 ha |
| 2003 | 4 ha | under 1 ha | 4 ha |
| 2004 | 13 ha | under 1 ha | 13 ha |
| 2005 | 11 ha | under 1 ha | 11 ha |
| 2006 | 5 ha | under 1 ha | 5 ha |
| 2007 | 8 ha | under 1 ha | 8 ha |
| 2008 | 18 ha | under 1 ha | 18 ha |
| 2009 | 5 ha | under 1 ha | 6 ha |
| 2010 | 2 ha | under 1 ha | 2 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 3 ha | under 1 ha | 3 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | 4 ha | under 1 ha | 4 ha |
| 2016 | 8 ha | under 1 ha | 8 ha |
| 2017 | 7 ha | under 1 ha | 7 ha |
| 2018 | 2 ha | under 1 ha | 2 ha |
| 2019 | 3 ha | under 1 ha | 3 ha |
| 2020 | 7 ha | under 1 ha | 8 ha |
| 2021 | 1 ha | under 1 ha | 1 ha |
| 2022 | under 1 ha | under 1 ha | 1 ha |
| 2023 | 5 ha | under 1 ha | 5 ha |
| 2024 | 4 ha | under 1 ha | 4 ha |
| 2025 | 4 ha | 4 ha | 8 ha |
What is causing deforestation around Handa?
- Towns and roadscleared for good89% · 120 ha
- Farms, pasture and plantationscleared for good3.3% · 4 ha
- Unknown causescause unknown7.4% · 10 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
- 2,850 ha
- Forest in 2020
- 2,830 ha
- Overall change
- −23 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Handa stayed about the same size, at about 2,830 hectares: new forest grew on about 139 hectares, and about 162 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 Handa
What is the air quality (AQI) in Handa right now?
The latest reading for Handa shows an AQI of 11 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 250 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Handa today?
At AQI 11 (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 Handa been like this week?
Over the last 7 days, the CAMS air-quality model put Handa's daily AQI at 42 on average, from 31 on Nov 7 to an hourly peak of 67 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Handa lost since 2001?
Since 2001, the area within 10 km of Handa has lost about 134 hectares of forest (about 190 football pitches): 7.2% of the forest it had in 2000. Most of it (93%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Handa stayed about the same size, at about 2,830 hectares: new forest grew on about 139 hectares, and about 162 hectares were lost.
What is the tree count in Handa?
Handa has an estimated 23,851 trees across the 12.08 km² of land measured — 7.9% tree cover, 22 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Handa need?
Handa needs roughly 66,721 more trees to close a 22-point shortfall against its 30% tree-cover target — about 1,468 t of extra CO₂ absorbed per year once grown.
How are Handa'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 1 Chome Shinmeicho; the tree count is an estimate derived from that cover.
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