City report · Shizuoka, Japan
Shizuoka Air quality today
Air quality in Shizuoka currently reads AQI 22 (Good): Air quality is satisfactory for everyone.
AQI 22
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 4.0
- tree cover
- 14.1%
- trees in this area
- 43.9K
- more trees needed
- 49.5K
Measured across a 2 km radius around 16 Higashikusabukacho, Aoi Ward, Shizuoka, 420-0865, Japan (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Shizuoka · AQI 22 (Good)
Shizuoka's tree count comes to 43,898 trees across 12.46 km² of land, 16 points below the 30% tree-cover level considered healthy for this area, so roughly 49,502 more trees would close the gap.
Air quality detail
Air quality in Shizuoka today: AQI 22, Good
Main pollutant: PM2.5 · Observed Nov 12, 03:00 local time via OpenAQ and World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · 静岡市葵区常磐町３丁目１－１, 1.5 km away · median of 6 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.0
PM10
4.8
NO₂
5.6
O₃
—
SO₂
0.0
CO
—
Data: OpenAQ · Ministry of the Environment Air Pollutant Wide Area Monitoring System, 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), Shizuoka Prefecture Atmospheric Monitoring System (静岡県大気常時監視システム)
- 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 Shizuoka's daily AQI at 31 on average, from 15 on Nov 5 to an hourly peak of 62 on Nov 6.
Where Shizuoka stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Shizuoka: Critically low
14.1% tree cover against a 30% healthy-neighborhood target, across 12.46 km² of land.
Trees in this area
43,898
Target trees
93,400
More trees needed
49,502
CO₂ if planted / yr
1,089 t
Deforestation · 2001–2025
How much forest has Shizuoka lost?
Since 2001, the area within 10 km of Shizuoka has lost about 244 hectares of forest (about 340 football pitches): 1.8% of the forest it had in 2000. Most of it (54%) 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
- 244 haabout 340 football pitches
- Share of its forest
- 1.8%of what there was in 2000
- Cleared for good
- 133 hadeforestation: turned into farms, mines or towns
The worst year was 2004, when about 23 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 | 6 ha | 4 ha | 10 ha |
| 2002 | 13 ha | 8 ha | 20 ha |
| 2003 | 3 ha | 11 ha | 14 ha |
| 2004 | 11 ha | 12 ha | 23 ha |
| 2005 | 1 ha | 3 ha | 4 ha |
| 2006 | 14 ha | 6 ha | 20 ha |
| 2007 | 14 ha | 5 ha | 19 ha |
| 2008 | 4 ha | 3 ha | 7 ha |
| 2009 | 9 ha | 12 ha | 20 ha |
| 2010 | 4 ha | 6 ha | 10 ha |
| 2011 | 4 ha | 6 ha | 10 ha |
| 2012 | 13 ha | 6 ha | 19 ha |
| 2013 | 10 ha | 2 ha | 12 ha |
| 2014 | 6 ha | 3 ha | 9 ha |
| 2015 | under 1 ha | 3 ha | 4 ha |
| 2016 | 3 ha | 1 ha | 4 ha |
| 2017 | 3 ha | 2 ha | 5 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | 1 ha | under 1 ha | 2 ha |
| 2020 | under 1 ha | 3 ha | 3 ha |
| 2021 | under 1 ha | 1 ha | 2 ha |
| 2022 | under 1 ha | 3 ha | 3 ha |
| 2023 | 4 ha | 6 ha | 9 ha |
| 2024 | 6 ha | 3 ha | 9 ha |
| 2025 | 4 ha | 2 ha | 6 ha |
What is causing deforestation around Shizuoka?
- Towns and roadscleared for good52% · 126 ha
- Loggingcan grow back34% · 82 ha
- Storms, floods and other natural causescan grow back4.9% · 12 ha
Also: mining and energy, 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
- 14,900 ha
- Forest in 2020
- 14,800 ha
- Overall change
- −121 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Shizuoka stayed about the same size, at about 14,800 hectares: new forest grew on about 67 hectares, and about 188 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 Shizuoka
What is the air quality (AQI) in Shizuoka right now?
The latest reading for Shizuoka shows an AQI of 22 (Good), measured Nov 12, 03:00 local time by 6 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 静岡市葵区常磐町３丁目１－１, 1.5 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Shizuoka today?
At AQI 22 (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 Shizuoka been like this week?
Over the last 7 days, the CAMS air-quality model put Shizuoka's daily AQI at 31 on average, from 15 on Nov 5 to an hourly peak of 62 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 Shizuoka lost since 2001?
Since 2001, the area within 10 km of Shizuoka has lost about 244 hectares of forest (about 340 football pitches): 1.8% of the forest it had in 2000. Most of it (54%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Shizuoka stayed about the same size, at about 14,800 hectares: new forest grew on about 67 hectares, and about 188 hectares were lost.
What is the tree count in Shizuoka?
Shizuoka has an estimated 43,898 trees across the 12.46 km² of land measured — 14.1% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Shizuoka need?
Shizuoka needs roughly 49,502 more trees to close a 16-point shortfall against its 30% tree-cover target — about 1,089 t of extra CO₂ absorbed per year once grown.
How are Shizuoka's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 16 Higashikusabukacho, 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 16 Higashikusabukacho; the tree count is an estimate derived from that cover.
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