City report · Fukuoka, Japan
Iizuka Air quality today
Air quality in Iizuka currently reads AQI 33 (Good): Air quality is satisfactory for everyone.
AQI 33
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 6.0
- tree cover
- 18.3%
- trees in this area
- 57.4K
- more trees needed
- 36.7K
Measured across a 2 km radius around 5 Iizuka, Fukuoka 820-0041, Japan (12.57 km²), from a satellite image of Aug 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Iizuka · AQI 33 (Good)
Iizuka's tree count comes to 57,434 trees across 12.56 km² of land, 12 points below the 30% tree-cover level considered healthy for this area, so roughly 36,720 more trees would close the gap.
Air quality detail
Air quality in Iizuka today: AQI 33, Good
Main pollutant: PM2.5 · Observed Nov 12, 02:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 飯塚市平恒1番地47, 3 km away · median of 2 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.0
PM10
—
NO₂
7.5
O₃
—
SO₂
0.0
CO
—
Data: OpenAQ · Ministry of the Environment Air Pollutant Wide Area Monitoring System
- 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 Iizuka's daily AQI at 44 on average, from 24 on Nov 10 to an hourly peak of 74 on Nov 6.
Where Iizuka stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Iizuka: Below target
18.3% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
57,434
Target trees
94,154
More trees needed
36,720
CO₂ if planted / yr
807.8 t
Deforestation · 2001–2025
How much forest has Iizuka lost?
Since 2001, the area within 10 km of Iizuka has lost about 428 hectares of forest (about 600 football pitches): 3.1% of the forest it had in 2000. Most of it (57%) was deforestation, forest cleared for good, mainly for towns and roads.
2018: satellite photo from July 2018 of a 5 × 5 km area about 7 km southeast of the city center.
- Forest lost since 2001
- 428 haabout 600 football pitches
- Share of its forest
- 3.1%of what there was in 2000
- Cleared for good
- 246 hadeforestation: turned into farms, mines or towns
The worst year was 2018, when about 33 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 | 16 ha | 11 ha | 27 ha |
| 2002 | 2 ha | 4 ha | 6 ha |
| 2003 | 4 ha | under 1 ha | 4 ha |
| 2004 | 5 ha | 8 ha | 13 ha |
| 2005 | 7 ha | 8 ha | 15 ha |
| 2006 | 10 ha | 4 ha | 14 ha |
| 2007 | 8 ha | 2 ha | 9 ha |
| 2008 | 3 ha | 6 ha | 9 ha |
| 2009 | 6 ha | 7 ha | 13 ha |
| 2010 | 8 ha | 9 ha | 17 ha |
| 2011 | 10 ha | 9 ha | 19 ha |
| 2012 | 4 ha | 8 ha | 12 ha |
| 2013 | 3 ha | 4 ha | 7 ha |
| 2014 | 10 ha | 3 ha | 13 ha |
| 2015 | 23 ha | 6 ha | 28 ha |
| 2016 | 10 ha | 13 ha | 22 ha |
| 2017 | 14 ha | 13 ha | 27 ha |
| 2018 | 31 ha | 2 ha | 33 ha |
| 2019 | 21 ha | 1 ha | 23 ha |
| 2020 | 28 ha | under 1 ha | 28 ha |
| 2021 | 15 ha | 3 ha | 18 ha |
| 2022 | 4 ha | 12 ha | 16 ha |
| 2023 | 3 ha | 10 ha | 13 ha |
| 2024 | 2 ha | 15 ha | 16 ha |
| 2025 | 2 ha | 23 ha | 25 ha |
What is causing deforestation around Iizuka?
- Towns and roadscleared for good51% · 220 ha
- Loggingcan grow back39% · 165 ha
- Mining and energycleared for good6.1% · 26 ha
Also: 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.
Forest gained and lost, 2000–2020
- Forest in 2000
- 15,700 ha
- Forest in 2020
- 15,700 ha
- Overall change
- −72 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Iizuka stayed about the same size, at about 15,700 hectares: new forest grew on about 215 hectares, and about 287 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
In the same region
Measured cities near Iizuka
Same 2 km radius, same index — so they compare directly.
- Kasuga24.3 km
Japan
- Tree cover
- 11%
- Air quality
- 33
- Fukuoka25.3 km
Japan
- Tree cover
- 5%
- Air quality
- 48
- Kitakyushu28.3 km
Japan
- Tree cover
- 59%
- Air quality
- 47
- Kurume38.9 km
Japan
- Tree cover
- 6%
- Air quality
- 48
- Shimonoseki42.3 km
Japan
- Tree cover
- 22%
- Air quality
- 48
- Saga57.4 km
Japan
- Tree cover
- 5%
- Air quality
- 58
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Frequently asked
Questions about Iizuka
What is the air quality (AQI) in Iizuka right now?
The latest reading for Iizuka shows an AQI of 33 (Good), measured Nov 12, 02:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 飯塚市平恒1番地47, 3 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Iizuka today?
At AQI 33 (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 Iizuka been like this week?
Over the last 7 days, the CAMS air-quality model put Iizuka's daily AQI at 44 on average, from 24 on Nov 10 to an hourly peak of 74 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 Iizuka lost since 2001?
Since 2001, the area within 10 km of Iizuka has lost about 428 hectares of forest (about 600 football pitches): 3.1% of the forest it had in 2000. Most of it (57%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Iizuka stayed about the same size, at about 15,700 hectares: new forest grew on about 215 hectares, and about 287 hectares were lost.
What is the tree count in Iizuka?
Iizuka has an estimated 57,434 trees across the 12.56 km² of land measured — 18.3% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Iizuka need?
Iizuka needs roughly 36,720 more trees to close a 12-point shortfall against its 30% tree-cover target — about 807.8 t of extra CO₂ absorbed per year once grown.
How are Iizuka's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 5 Iizuka, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 5 Iizuka; the tree count is an estimate derived from that cover.
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