City report · Shizuoka, Japan
Kakegawa Air quality today
Air quality in Kakegawa currently reads AQI 8 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 8
Good
- PM2.5, fine particles (µg/m³)
- 1.0
- tree cover
- 34.0%
- trees in this area
- 107K
- more trees needed
- 0
Measured across a 2 km radius around 2 Chome-9 Minami, Kakegawa, Shizuoka 436-0029, Japan (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Kakegawa · AQI 8 (Good)
Kakegawa's tree count comes to 106,814 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Kakegawa today: AQI 8, Good
Main pollutant: NO₂ · Observed Nov 11, 22:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 袋井市新屋一丁目１番地の１, 8.2 km away · median of 3 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.0
PM10
—
NO₂
18.8
O₃
—
SO₂
0.0
CO
229.1
Data: OpenAQ · Ministry of the Environment Air Pollutant Wide Area Monitoring System
- 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 Kakegawa's daily AQI at 28 on average, from 15 on Nov 5 to an hourly peak of 64 on Nov 6.
Where Kakegawa stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Kakegawa: Healthy tree cover
34.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
106,814
Target trees
106,814
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Kakegawa lost?
Since 2001, the area within 10 km of Kakegawa has lost about 364 hectares of forest (about 510 football pitches): 2.5% of the forest it had in 2000. Most of it (84%) 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 north of the city center.
- Forest lost since 2001
- 364 haabout 510 football pitches
- Share of its forest
- 2.5%of what there was in 2000
- Cleared for good
- 307 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 40 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 | 36 ha | 4 ha | 40 ha |
| 2002 | 16 ha | 8 ha | 23 ha |
| 2003 | 20 ha | under 1 ha | 20 ha |
| 2004 | 9 ha | 3 ha | 12 ha |
| 2005 | 13 ha | 1 ha | 15 ha |
| 2006 | 9 ha | 1 ha | 10 ha |
| 2007 | 7 ha | 2 ha | 10 ha |
| 2008 | 5 ha | under 1 ha | 5 ha |
| 2009 | 22 ha | 2 ha | 24 ha |
| 2010 | 9 ha | 4 ha | 13 ha |
| 2011 | 8 ha | 3 ha | 11 ha |
| 2012 | 18 ha | 6 ha | 24 ha |
| 2013 | 7 ha | under 1 ha | 7 ha |
| 2014 | 16 ha | under 1 ha | 17 ha |
| 2015 | 4 ha | under 1 ha | 5 ha |
| 2016 | 15 ha | 3 ha | 18 ha |
| 2017 | 6 ha | 2 ha | 8 ha |
| 2018 | 8 ha | 1 ha | 9 ha |
| 2019 | 5 ha | 2 ha | 7 ha |
| 2020 | 12 ha | 4 ha | 16 ha |
| 2021 | 6 ha | under 1 ha | 6 ha |
| 2022 | 14 ha | 2 ha | 17 ha |
| 2023 | 34 ha | 2 ha | 36 ha |
| 2024 | 3 ha | 3 ha | 6 ha |
| 2025 | 5 ha | 2 ha | 7 ha |
What is causing deforestation around Kakegawa?
- Towns and roadscleared for good61% · 222 ha
- Mining and energycleared for good13% · 48 ha
- Farms, pasture and plantationscleared for good10% · 37 ha
Also: logging, 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
- 17,900 ha
- Forest in 2020
- 17,900 ha
- Overall change
- +60 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Kakegawa stayed about the same size, at about 17,900 hectares: new forest grew on about 303 hectares, and about 244 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 Kakegawa
What is the air quality (AQI) in Kakegawa right now?
The latest reading for Kakegawa shows an AQI of 8 (Good), measured Nov 11, 22:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 袋井市新屋一丁目１番地の１, 8.2 km away). The main pollutant is NO₂. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Kakegawa today?
At AQI 8 (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 Kakegawa been like this week?
Over the last 7 days, the CAMS air-quality model put Kakegawa's daily AQI at 28 on average, from 15 on Nov 5 to an hourly peak of 64 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 Kakegawa lost since 2001?
Since 2001, the area within 10 km of Kakegawa has lost about 364 hectares of forest (about 510 football pitches): 2.5% of the forest it had in 2000. Most of it (84%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Kakegawa stayed about the same size, at about 17,900 hectares: new forest grew on about 303 hectares, and about 244 hectares were lost.
What is the tree count in Kakegawa?
Kakegawa has an estimated 106,814 trees across the 12.57 km² measured — 34.0% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Kakegawa need?
Kakegawa has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Kakegawa's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 2 Chome-9 Minami, 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 2 Chome-9 Minami; the tree count is an estimate derived from that cover.
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