City report · Miyazaki, Japan
Nobeoka Air quality today
Air quality in Nobeoka currently reads AQI 11 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 11
Good
- PM2.5, fine particles (µg/m³)
- 1.9
- tree cover
- 18.0%
- trees in this area
- 53.6K
- more trees needed
- 35.7K
Measured across a 2 km radius around 1 Chome Kitamachi, Nobeoka, Miyazaki 882-0814, Japan (12.57 km²), from a satellite image of Sep 22, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nobeoka · AQI 11 (Good)
Nobeoka's tree count comes to 53,608 trees across 11.92 km² of land, 12 points below the 30% tree-cover level considered healthy for this area, so roughly 35,739 more trees would close the gap.
Air quality detail
Air quality in Nobeoka today: AQI 11, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 225 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 225 km, e.g. Kasuga and Fukuoka
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.9
PM10
10.7
NO₂
2.4
O₃
91.0
SO₂
3.7
CO
153.0
- 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 Nobeoka's daily AQI at 36 on average, from 14 on Nov 10 to an hourly peak of 69 on Nov 6.
Where Nobeoka stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nobeoka: Below target
18.0% tree cover against a 30% healthy-neighborhood target, across 11.92 km² of land.
Trees in this area
53,608
Target trees
89,347
More trees needed
35,739
CO₂ if planted / yr
786.3 t
Deforestation · 2001–2025
How much forest has Nobeoka lost?
Since 2001, the area within 10 km of Nobeoka has lost about 1,770 hectares of forest (about 2,500 football pitches): 10% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 207 hectares (12%) 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
- 1,770 haabout 2,500 football pitches
- Share of its forest
- 10%of what there was in 2000
- Cleared for good
- 207 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 90 hectares a year in 2021–2025, against 90 hectares a year in 2016–2020. The worst year was 2021, when about 140 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 | 9 ha | 13 ha | 22 ha |
| 2002 | 9 ha | 16 ha | 25 ha |
| 2003 | under 1 ha | 15 ha | 16 ha |
| 2004 | 3 ha | 42 ha | 45 ha |
| 2005 | 4 ha | 41 ha | 45 ha |
| 2006 | 19 ha | 80 ha | 99 ha |
| 2007 | 13 ha | 52 ha | 65 ha |
| 2008 | 21 ha | 64 ha | 85 ha |
| 2009 | 13 ha | 123 ha | 136 ha |
| 2010 | 6 ha | 78 ha | 84 ha |
| 2011 | 6 ha | 88 ha | 94 ha |
| 2012 | 4 ha | 21 ha | 25 ha |
| 2013 | 11 ha | 51 ha | 62 ha |
| 2014 | 4 ha | 18 ha | 22 ha |
| 2015 | 2 ha | 45 ha | 47 ha |
| 2016 | 8 ha | 68 ha | 76 ha |
| 2017 | 9 ha | 66 ha | 75 ha |
| 2018 | 16 ha | 86 ha | 102 ha |
| 2019 | 8 ha | 69 ha | 77 ha |
| 2020 | 2 ha | 120 ha | 122 ha |
| 2021 | 6 ha | 134 ha | 140 ha |
| 2022 | 7 ha | 76 ha | 83 ha |
| 2023 | 9 ha | 68 ha | 77 ha |
| 2024 | 6 ha | 69 ha | 75 ha |
| 2025 | 13 ha | 64 ha | 76 ha |
What is causing deforestation around Nobeoka?
- Loggingcan grow back88% · 1,560 ha
- Towns and roadscleared for good12% · 206 ha
Also: storms, floods and other natural causes, mining and energy, 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
- 19,000 ha
- Forest in 2020
- 18,800 ha
- Overall change
- −157 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nobeoka stayed about the same size, at about 18,800 hectares: new forest grew on about 91 hectares, and about 248 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 Nobeoka
What is the air quality (AQI) in Nobeoka right now?
The latest reading for Nobeoka shows an AQI of 11 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 225 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Nobeoka today?
At AQI 11 (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 Nobeoka been like this week?
Over the last 7 days, the CAMS air-quality model put Nobeoka's daily AQI at 36 on average, from 14 on Nov 10 to an hourly peak of 69 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 Nobeoka lost since 2001?
Since 2001, the area within 10 km of Nobeoka has lost about 1,770 hectares of forest (about 2,500 football pitches): 10% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 207 hectares (12%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 90 hectares a year in 2021–2025, against 90 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Nobeoka stayed about the same size, at about 18,800 hectares: new forest grew on about 91 hectares, and about 248 hectares were lost.
What is the tree count in Nobeoka?
Nobeoka has an estimated 53,608 trees across the 11.92 km² of land measured — 18.0% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nobeoka need?
Nobeoka needs roughly 35,739 more trees to close a 12-point shortfall against its 30% tree-cover target — about 786.3 t of extra CO₂ absorbed per year once grown.
How are Nobeoka'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 1 Chome Kitamachi; the tree count is an estimate derived from that cover.
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