City report · Shimane, Japan
Matsue Air quality today
Air quality in Matsue currently reads AQI 35 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 35
Good
- PM2.5, fine particles (µg/m³)
- 7.4
- tree cover
- 33.1%
- trees in this area
- 101K
- more trees needed
- 0
Measured across a 2 km radius around Kasugacho, Matsue, Shimane 690-0877, Japan (12.57 km²), from a satellite image of Sep 12, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Matsue · AQI 35 (Good)
Matsue's tree count comes to 101,075 trees across 12.22 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Matsue today: AQI 35, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.4
PM10
11.1
NO₂
1.3
O₃
90.0
SO₂
0.9
CO
136.0
- 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 Matsue's daily AQI at 36 on average, from 26 on Nov 5 to an hourly peak of 67 on Nov 6.
Where Matsue stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Matsue: Healthy tree cover
33.1% tree cover against a 30% healthy-neighborhood target, across 12.22 km² of land.
Trees in this area
101,075
Target trees
101,075
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Matsue lost?
Since 2001, the area within 10 km of Matsue has lost about 263 hectares of forest (about 370 football pitches): 1.9% of the forest it had in 2000. The biggest cause was logging (49%), after which forest can grow back. About 118 hectares (45%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 263 haabout 370 football pitches
- Share of its forest
- 1.9%of what there was in 2000
- Cleared for good
- 118 hadeforestation: turned into farms, mines or towns
The worst year was 2015, when about 28 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 | 1 ha | 4 ha | 5 ha |
| 2002 | 1 ha | 8 ha | 9 ha |
| 2003 | 2 ha | 3 ha | 5 ha |
| 2004 | 21 ha | 3 ha | 24 ha |
| 2005 | 11 ha | 3 ha | 14 ha |
| 2006 | 5 ha | 2 ha | 7 ha |
| 2007 | 9 ha | 4 ha | 14 ha |
| 2008 | under 1 ha | 1 ha | 2 ha |
| 2009 | 8 ha | 3 ha | 11 ha |
| 2010 | 4 ha | 8 ha | 13 ha |
| 2011 | 3 ha | 4 ha | 7 ha |
| 2012 | 9 ha | 9 ha | 18 ha |
| 2013 | 4 ha | 5 ha | 9 ha |
| 2014 | under 1 ha | 6 ha | 6 ha |
| 2015 | 10 ha | 18 ha | 28 ha |
| 2016 | 10 ha | 8 ha | 18 ha |
| 2017 | 4 ha | 6 ha | 10 ha |
| 2018 | under 1 ha | 8 ha | 9 ha |
| 2019 | 4 ha | 3 ha | 7 ha |
| 2020 | under 1 ha | 10 ha | 11 ha |
| 2021 | 1 ha | 1 ha | 2 ha |
| 2022 | 1 ha | 5 ha | 6 ha |
| 2023 | 6 ha | 10 ha | 16 ha |
| 2024 | under 1 ha | 5 ha | 5 ha |
| 2025 | under 1 ha | 8 ha | 8 ha |
What is causing deforestation around Matsue?
- Loggingcan grow back49% · 130 ha
- Towns and roadscleared for good41% · 107 ha
- Mining and energycleared for good4.3% · 11 ha
Also: 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
- 14,800 ha
- Forest in 2020
- 14,700 ha
- Overall change
- −71 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Matsue stayed about the same size, at about 14,700 hectares: new forest grew on about 95 hectares, and about 166 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 Matsue
What is the air quality (AQI) in Matsue right now?
The latest reading for Matsue shows an AQI of 35 (Good), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Matsue today?
At AQI 35 (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 Matsue been like this week?
Over the last 7 days, the CAMS air-quality model put Matsue's daily AQI at 36 on average, from 26 on Nov 5 to an hourly peak of 67 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 Matsue lost since 2001?
Since 2001, the area within 10 km of Matsue has lost about 263 hectares of forest (about 370 football pitches): 1.9% of the forest it had in 2000. The biggest cause was logging (49%), after which forest can grow back. About 118 hectares (45%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Matsue stayed about the same size, at about 14,700 hectares: new forest grew on about 95 hectares, and about 166 hectares were lost.
What is the tree count in Matsue?
Matsue has an estimated 101,075 trees across the 12.22 km² of land measured — 33.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Matsue need?
Matsue has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Matsue'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 Kasugacho; the tree count is an estimate derived from that cover.
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