City report · Ibaraki, Japan
Mito Air quality today
Air quality in Mito currently reads AQI 4 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 4
Good
- PM2.5, fine particles (µg/m³)
- 0.6
- tree cover
- 14.2%
- trees in this area
- 44.6K
- more trees needed
- 49.6K
Measured across a 2 km radius around Kasaharacho, Mito, Ibaraki 310-0852, Japan (12.57 km²), from a satellite image of Aug 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Mito · AQI 4 (Good)
Mito's tree count comes to 44,611 trees across 12.57 km², 16 points below the 30% tree-cover level considered healthy for this area, so roughly 49,637 more trees would close the gap.
Air quality detail
Air quality in Mito today: AQI 4, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 16 ground-station cities within 185 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 16 station cities within 185 km, e.g. Inzai and Noda
Health signal
Air quality is satisfactory for everyone.
PM2.5
0.6
PM10
2.6
NO₂
4.8
O₃
77.0
SO₂
4.2
CO
148.0
- 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 Mito's daily AQI at 21 on average, from 9 on Nov 7 to an hourly peak of 76 on Nov 6.
Where Mito stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mito: Critically low
14.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
44,611
Target trees
94,248
More trees needed
49,637
CO₂ if planted / yr
1,092 t
Deforestation · 2001–2025
How much forest has Mito lost?
Since 2001, the area within 10 km of Mito has lost about 280 hectares of forest (about 390 football pitches): 5.6% of the forest it had in 2000. Most of it (93%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 4 km west of the city center.
- Forest lost since 2001
- 280 haabout 390 football pitches
- Share of its forest
- 5.6%of what there was in 2000
- Cleared for good
- 261 hadeforestation: turned into farms, mines or towns
The worst year was 2016, when about 39 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 | 5 ha | under 1 ha | 5 ha |
| 2002 | 6 ha | under 1 ha | 6 ha |
| 2003 | 3 ha | under 1 ha | 3 ha |
| 2004 | 4 ha | under 1 ha | 4 ha |
| 2005 | 4 ha | under 1 ha | 4 ha |
| 2006 | 7 ha | 1 ha | 9 ha |
| 2007 | 12 ha | under 1 ha | 12 ha |
| 2008 | 4 ha | under 1 ha | 5 ha |
| 2009 | 20 ha | 2 ha | 22 ha |
| 2010 | 5 ha | under 1 ha | 5 ha |
| 2011 | 4 ha | 1 ha | 5 ha |
| 2012 | 11 ha | 2 ha | 13 ha |
| 2013 | 4 ha | under 1 ha | 4 ha |
| 2014 | 9 ha | under 1 ha | 9 ha |
| 2015 | 14 ha | under 1 ha | 14 ha |
| 2016 | 38 ha | 2 ha | 39 ha |
| 2017 | 8 ha | under 1 ha | 8 ha |
| 2018 | 20 ha | under 1 ha | 20 ha |
| 2019 | 10 ha | under 1 ha | 11 ha |
| 2020 | 11 ha | 1 ha | 12 ha |
| 2021 | 14 ha | under 1 ha | 14 ha |
| 2022 | 10 ha | under 1 ha | 10 ha |
| 2023 | 16 ha | under 1 ha | 16 ha |
| 2024 | 11 ha | under 1 ha | 11 ha |
| 2025 | 15 ha | 5 ha | 20 ha |
What is causing deforestation around Mito?
- Towns and roadscleared for good93% · 261 ha
- Loggingcan grow back2.5% · 7 ha
- Unknown causescause unknown4.2% · 12 ha
Also: farms, pasture and plantations.
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
- 5,590 ha
- Forest in 2020
- 5,160 ha
- Overall change
- −432 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Mito shrank from about 5,590 hectares to 5,160 hectares, a net loss of about 432 hectares (−7.7%). New forest grew on about 101 hectares, but 533 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 Mito
What is the air quality (AQI) in Mito right now?
The latest reading for Mito shows an AQI of 4 (Good), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 16 ground-station cities within 185 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Mito today?
At AQI 4 (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 Mito been like this week?
Over the last 7 days, the CAMS air-quality model put Mito's daily AQI at 21 on average, from 9 on Nov 7 to an hourly peak of 76 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 Mito lost since 2001?
Since 2001, the area within 10 km of Mito has lost about 280 hectares of forest (about 390 football pitches): 5.6% of the forest it had in 2000. Most of it (93%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Mito shrank from about 5,590 hectares to 5,160 hectares, a net loss of about 432 hectares (−7.7%). New forest grew on about 101 hectares, but 533 hectares were lost.
What is the tree count in Mito?
Mito has an estimated 44,611 trees across the 12.57 km² measured — 14.2% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Mito need?
Mito needs roughly 49,637 more trees to close a 16-point shortfall against its 30% tree-cover target — about 1,092 t of extra CO₂ absorbed per year once grown.
How are Mito'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 Kasaharacho; the tree count is an estimate derived from that cover.
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