City report · Tottori, Japan
Yonago Air quality today
Air quality in Yonago 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
- 10.5%
- trees in this area
- 30.2K
- more trees needed
- 56.1K
Measured across a 2 km radius around 2 Chome Kakubancho, Yonago, Tottori 683-0812, Japan (12.57 km²), from a satellite image of Sep 12, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Yonago · AQI 35 (Good)
Yonago's tree count comes to 30,216 trees across 11.51 km² of land, 20 points below the 30% tree-cover level considered healthy for this area, so roughly 56,115 more trees would close the gap.
Air quality detail
Air quality in Yonago 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
132.0
- 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 Yonago's daily AQI at 36 on average, from 26 on Nov 5 to an hourly peak of 67 on Nov 6.
Where Yonago stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Yonago: Critically low
10.5% tree cover against a 30% healthy-neighborhood target, across 11.51 km² of land.
Trees in this area
30,216
Target trees
86,331
More trees needed
56,115
CO₂ if planted / yr
1,235 t
Deforestation · 2001–2025
How much forest has Yonago lost?
Since 2001, the area within 10 km of Yonago has lost about 207 hectares of forest (about 290 football pitches): 3% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 44 hectares (21%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 207 haabout 290 football pitches
- Share of its forest
- 3%of what there was in 2000
- Cleared for good
- 44 hadeforestation: turned into farms, mines or towns
The worst year was 2019, when about 20 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 | under 1 ha | 4 ha | 5 ha |
| 2002 | 2 ha | 4 ha | 6 ha |
| 2003 | under 1 ha | 6 ha | 6 ha |
| 2004 | 3 ha | 14 ha | 17 ha |
| 2005 | 4 ha | 5 ha | 8 ha |
| 2006 | 1 ha | 3 ha | 5 ha |
| 2007 | 7 ha | 8 ha | 15 ha |
| 2008 | under 1 ha | 5 ha | 5 ha |
| 2009 | 1 ha | 16 ha | 18 ha |
| 2010 | 3 ha | 11 ha | 14 ha |
| 2011 | 1 ha | 3 ha | 4 ha |
| 2012 | 6 ha | 7 ha | 13 ha |
| 2013 | 3 ha | under 1 ha | 4 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 2 ha | 2 ha | 4 ha |
| 2017 | under 1 ha | 7 ha | 7 ha |
| 2018 | under 1 ha | 6 ha | 6 ha |
| 2019 | under 1 ha | 19 ha | 20 ha |
| 2020 | 2 ha | 17 ha | 18 ha |
| 2021 | under 1 ha | 2 ha | 2 ha |
| 2022 | under 1 ha | 4 ha | 4 ha |
| 2023 | under 1 ha | 1 ha | 1 ha |
| 2024 | 2 ha | 9 ha | 11 ha |
| 2025 | 3 ha | 10 ha | 13 ha |
What is causing deforestation around Yonago?
- Loggingcan grow back70% · 146 ha
- Towns and roadscleared for good18% · 38 ha
- Mining and energycleared for good2.7% · 6 ha
Also: 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
- 7,290 ha
- Forest in 2020
- 7,280 ha
- Overall change
- −5 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Yonago stayed about the same size, at about 7,280 hectares: new forest grew on about 103 hectares, and about 107 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 Yonago
What is the air quality (AQI) in Yonago right now?
The latest reading for Yonago 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 Yonago 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 Yonago been like this week?
Over the last 7 days, the CAMS air-quality model put Yonago'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 Yonago lost since 2001?
Since 2001, the area within 10 km of Yonago has lost about 207 hectares of forest (about 290 football pitches): 3% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 44 hectares (21%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Yonago stayed about the same size, at about 7,280 hectares: new forest grew on about 103 hectares, and about 107 hectares were lost.
What is the tree count in Yonago?
Yonago has an estimated 30,216 trees across the 11.51 km² of land measured — 10.5% tree cover, 20 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Yonago need?
Yonago needs roughly 56,115 more trees to close a 20-point shortfall against its 30% tree-cover target — about 1,235 t of extra CO₂ absorbed per year once grown.
How are Yonago'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 2 Chome Kakubancho; the tree count is an estimate derived from that cover.
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