City report · Aichi, Japan
Nishio Air quality today
Air quality in Nishio currently reads AQI 13 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 13
Good
- PM2.5, fine particles (µg/m³)
- 1.8
- tree cover
- 7.2%
- trees in this area
- 22.6K
- more trees needed
- 71.6K
Measured across a 2 km radius around Kinjocho, Nishio, Aichi 445-0864, Japan (12.57 km²), from a satellite image of Aug 7, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nishio · AQI 13 (Good)
Nishio's tree count comes to 22,619 trees across 12.57 km², 23 points below the 30% tree-cover level considered healthy for this area, so roughly 71,628 more trees would close the gap.
Air quality detail
Air quality in Nishio today: AQI 13, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 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
1.8
PM10
5.3
NO₂
11.1
O₃
71.0
SO₂
6.9
CO
179.0
- 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 Nishio's daily AQI at 45 on average, from 27 on Nov 7 to an hourly peak of 69 on Nov 5.
Where Nishio stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nishio: Critically low
7.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
22,619
Target trees
94,247
More trees needed
71,628
CO₂ if planted / yr
1,576 t
Deforestation · 2001–2025
How much forest has Nishio lost?
Since 2001, the area within 10 km of Nishio has lost about 75 hectares of forest (about 100 football pitches): 2.4% of the forest it had in 2000. Most of it (92%) 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 southeast of the city center.
- Forest lost since 2001
- 75 haabout 100 football pitches
- Share of its forest
- 2.4%of what there was in 2000
- Cleared for good
- 68 hadeforestation: turned into farms, mines or towns
The worst year was 2021, when about 21 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 | 4 ha | under 1 ha | 4 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | 3 ha | under 1 ha | 3 ha |
| 2004 | 3 ha | under 1 ha | 4 ha |
| 2005 | 2 ha | under 1 ha | 3 ha |
| 2006 | 3 ha | under 1 ha | 3 ha |
| 2007 | 3 ha | under 1 ha | 3 ha |
| 2008 | 2 ha | under 1 ha | 2 ha |
| 2009 | 5 ha | under 1 ha | 5 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 1 ha | under 1 ha | 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 1 ha | under 1 ha | 1 ha |
| 2015 | 3 ha | under 1 ha | 3 ha |
| 2016 | 2 ha | under 1 ha | 2 ha |
| 2017 | 2 ha | under 1 ha | 2 ha |
| 2018 | 1 ha | under 1 ha | 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | 21 ha | under 1 ha | 21 ha |
| 2022 | 5 ha | under 1 ha | 5 ha |
| 2023 | 5 ha | under 1 ha | 5 ha |
| 2024 | 2 ha | under 1 ha | 2 ha |
| 2025 | under 1 ha | 1 ha | 2 ha |
What is causing deforestation around Nishio?
- Towns and roadscleared for good86% · 64 ha
- Mining and energycleared for good5.9% · 4 ha
- Unknown causescause unknown8.6% · 6 ha
Also: farms, pasture and plantations.
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
- 3,690 ha
- Forest in 2020
- 3,710 ha
- Overall change
- +16 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nishio stayed about the same size, at about 3,710 hectares: new forest grew on about 71 hectares, and about 55 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 Nishio
What is the air quality (AQI) in Nishio right now?
The latest reading for Nishio shows an AQI of 13 (Good), observed Nov 11, 11:00 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 Nishio today?
At AQI 13 (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 Nishio been like this week?
Over the last 7 days, the CAMS air-quality model put Nishio's daily AQI at 45 on average, from 27 on Nov 7 to an hourly peak of 69 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 Nishio lost since 2001?
Since 2001, the area within 10 km of Nishio has lost about 75 hectares of forest (about 100 football pitches): 2.4% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Nishio stayed about the same size, at about 3,710 hectares: new forest grew on about 71 hectares, and about 55 hectares were lost.
What is the tree count in Nishio?
Nishio has an estimated 22,619 trees across the 12.57 km² measured — 7.2% tree cover, 23 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nishio need?
Nishio needs roughly 71,628 more trees to close a 23-point shortfall against its 30% tree-cover target — about 1,576 t of extra CO₂ absorbed per year once grown.
How are Nishio'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 Kinjocho; the tree count is an estimate derived from that cover.
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