City report · Fukushima, Japan
Iwaki Air quality today
Air quality in Iwaki currently reads AQI 3 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 3
Good
- PM2.5, fine particles (µg/m³)
- 0.7
- tree cover
- 30.7%
- trees in this area
- 96.4K
- more trees needed
- 0
Measured across a 2 km radius around 2 Chome Ojimamachi, Iwaki, Fukushima 973-8411, Japan (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Iwaki · AQI 3 (Good)
Iwaki's tree count comes to 96,447 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Iwaki today: AQI 3, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 165 km, e.g. Inzai and Noda
Health signal
Air quality is satisfactory for everyone.
PM2.5
0.7
PM10
4.3
NO₂
1.7
O₃
81.0
SO₂
1.4
CO
133.0
- 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 Iwaki's daily AQI at 19 on average, from 4 on Nov 7 to an hourly peak of 54 on Nov 6.
Where Iwaki stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Iwaki: Healthy tree cover
30.7% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
96,447
Target trees
96,447
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Iwaki lost?
Since 2001, the area within 10 km of Iwaki has lost about 413 hectares of forest (about 580 football pitches): 2.6% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 171 hectares (41%) 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 west of the city center.
- Forest lost since 2001
- 413 haabout 580 football pitches
- Share of its forest
- 2.6%of what there was in 2000
- Cleared for good
- 171 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 41 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 | 21 ha | 21 ha | 41 ha |
| 2002 | 5 ha | 15 ha | 20 ha |
| 2003 | 5 ha | 7 ha | 12 ha |
| 2004 | 6 ha | 6 ha | 12 ha |
| 2005 | 5 ha | 7 ha | 12 ha |
| 2006 | 4 ha | 15 ha | 19 ha |
| 2007 | 8 ha | 8 ha | 17 ha |
| 2008 | 6 ha | 6 ha | 12 ha |
| 2009 | 5 ha | 4 ha | 9 ha |
| 2010 | 5 ha | 11 ha | 16 ha |
| 2011 | 2 ha | 4 ha | 6 ha |
| 2012 | 8 ha | 23 ha | 31 ha |
| 2013 | 2 ha | 3 ha | 4 ha |
| 2014 | 4 ha | 3 ha | 8 ha |
| 2015 | 24 ha | 4 ha | 28 ha |
| 2016 | 10 ha | 10 ha | 20 ha |
| 2017 | 8 ha | 8 ha | 16 ha |
| 2018 | 2 ha | 6 ha | 8 ha |
| 2019 | 6 ha | 15 ha | 21 ha |
| 2020 | 4 ha | 9 ha | 12 ha |
| 2021 | 16 ha | 14 ha | 30 ha |
| 2022 | 7 ha | 11 ha | 18 ha |
| 2023 | 4 ha | 8 ha | 12 ha |
| 2024 | 1 ha | 13 ha | 14 ha |
| 2025 | 4 ha | 11 ha | 15 ha |
What is causing deforestation around Iwaki?
- Loggingcan grow back54% · 223 ha
- Towns and roadscleared for good35% · 146 ha
- Mining and energycleared for good4.8% · 20 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
- 16,800 ha
- Forest in 2020
- 16,900 ha
- Overall change
- +148 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Iwaki stayed about the same size, at about 16,900 hectares: new forest grew on about 339 hectares, and about 191 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 Iwaki
Same 2 km radius, same index — so they compare directly.
- Hitachi54.2 km
Japan
- Tree cover
- 35%
- Air quality
- 2
- Kōriyama58.9 km
Japan
- Tree cover
- 6%
- Air quality
- 6
- Nasushiobara73.0 km
Japan
- Tree cover
- 44%
- Air quality
- 5
- Hitachi-Naka79.0 km
Japan
- Tree cover
- 12%
- Air quality
- 4
- Fukushima86.1 km
Japan
- Tree cover
- 15%
- Air quality
- 6
- Mito86.9 km
Japan
- Tree cover
- 14%
- Air quality
- 4
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Frequently asked
Questions about Iwaki
What is the air quality (AQI) in Iwaki right now?
The latest reading for Iwaki shows an AQI of 3 (Good), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Iwaki today?
At AQI 3 (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 Iwaki been like this week?
Over the last 7 days, the CAMS air-quality model put Iwaki's daily AQI at 19 on average, from 4 on Nov 7 to an hourly peak of 54 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 Iwaki lost since 2001?
Since 2001, the area within 10 km of Iwaki has lost about 413 hectares of forest (about 580 football pitches): 2.6% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 171 hectares (41%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Iwaki stayed about the same size, at about 16,900 hectares: new forest grew on about 339 hectares, and about 191 hectares were lost.
What is the tree count in Iwaki?
Iwaki has an estimated 96,447 trees across the 12.57 km² measured — 30.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Iwaki need?
Iwaki has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Iwaki'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 Ojimamachi; the tree count is an estimate derived from that cover.
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