Japan · Shimane · 2 cities
Air quality in Shimane today The AQI right now, city by city
Right now, Izumo has the cleanest air of the 2 cities we track in Shimane (AQI 28, Good), and Matsue the worst (AQI 55, Moderate). Matsue has the most tree cover, at 33.1% — #26 of 207 cities measured in Japan.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
- cities tracked
- 2
- average tree cover
- 22.3%
- Japan: 16.4%
- worst air now: Matsue
- 55
- cleanest air now: Izumo
- 28
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Shimane
Air quality today across Shimane, city by city
| Matsue | 55Moderate | 33.1% | — | #26 of 207 |
|---|---|---|---|---|
| Izumo | 28Good | 11.5% | 57.9K | #104 of 207 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Japan.
Deforestation · 2001–2025
How much forest has Shimane lost?
Since 2001, Shimane has lost about 21,200 hectares of forest (about 30,000 football pitches): 3.8% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 1,760 hectares (8.3%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 21,200 haabout 30,000 football pitches
- Share of its forest
- 3.8%of what there was in 2000
- Cleared for good
- 1,760 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 50 ha | 491 ha | 540 ha |
| 2002 | 57 ha | 698 ha | 755 ha |
| 2003 | 41 ha | 644 ha | 685 ha |
| 2004 | 95 ha | 624 ha | 719 ha |
| 2005 | 52 ha | 625 ha | 677 ha |
| 2006 | 63 ha | 762 ha | 825 ha |
| 2007 | 136 ha | 841 ha | 977 ha |
| 2008 | 94 ha | 580 ha | 674 ha |
| 2009 | 121 ha | 901 ha | 1,020 ha |
| 2010 | 71 ha | 937 ha | 1,010 ha |
| 2011 | 57 ha | 714 ha | 771 ha |
| 2012 | 46 ha | 596 ha | 642 ha |
| 2013 | 53 ha | 651 ha | 704 ha |
| 2014 | 54 ha | 524 ha | 578 ha |
| 2015 | 52 ha | 654 ha | 706 ha |
| 2016 | 126 ha | 1,150 ha | 1,280 ha |
| 2017 | 110 ha | 719 ha | 829 ha |
| 2018 | 125 ha | 981 ha | 1,110 ha |
| 2019 | 59 ha | 770 ha | 829 ha |
| 2020 | 66 ha | 797 ha | 863 ha |
| 2021 | 45 ha | 837 ha | 882 ha |
| 2022 | 61 ha | 1,030 ha | 1,090 ha |
| 2023 | 38 ha | 894 ha | 932 ha |
| 2024 | 36 ha | 1,010 ha | 1,040 ha |
| 2025 | 57 ha | 1,030 ha | 1,080 ha |
Forest loss has stayed about the same: about 1,010 hectares a year in 2021–2025, against 981 hectares a year in 2016–2020. The worst year was 2016, when about 1,280 hectares of forest were lost.
What is causing deforestation in Shimane?
- Loggingcan grow back89% · 19,000 ha
- Towns and roadscleared for good6.1% · 1,290 ha
- Mining and energycleared for good1.6% · 347 ha
Also: farms, pasture and plantations, storms, floods and other natural causes, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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