City report · Hiroshima, Japan
Higashihiroshima Air quality today
Air quality in Higashihiroshima currently reads AQI 39 (Good): Air quality is satisfactory for everyone.
AQI 39
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.0
- tree cover
- 31.5%
- trees in this area
- 97.3K
- more trees needed
- 0
Measured across a 2 km radius around Saijocho Misonou, Higashihiroshima, Hiroshima 739-0024, Japan (12.57 km²), from a satellite image of Jul 31, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Higashihiroshima · AQI 39 (Good)
Higashihiroshima's tree count comes to 97,278 trees across 12.36 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Higashihiroshima today: AQI 39, Good
Main pollutant: PM2.5 · Observed Nov 12, 03:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 東広島市西条中央２丁目１５－１, 1.1 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.0
PM10
—
NO₂
16.9
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 Higashihiroshima's daily AQI at 32 on average, from 22 on Nov 10 to an hourly peak of 68 on Nov 6.
Where Higashihiroshima stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Higashihiroshima: Healthy tree cover
31.5% tree cover against a 30% healthy-neighborhood target, across 12.36 km² of land.
Trees in this area
97,278
Target trees
97,278
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Higashihiroshima lost?
Since 2001, the area within 10 km of Higashihiroshima has lost about 960 hectares of forest (about 1,300 football pitches): 4.9% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 348 hectares (36%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km west of the city center.
- Forest lost since 2001
- 960 haabout 1,300 football pitches
- Share of its forest
- 4.9%of what there was in 2000
- Cleared for good
- 348 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 26 hectares a year in 2021–2025, down from 58 hectares a year in 2016–2020. The worst year was 2018, when about 146 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 | 25 ha | 16 ha | 41 ha |
| 2002 | 9 ha | 26 ha | 36 ha |
| 2003 | 16 ha | 12 ha | 28 ha |
| 2004 | 11 ha | 36 ha | 47 ha |
| 2005 | 18 ha | 34 ha | 52 ha |
| 2006 | 6 ha | 23 ha | 29 ha |
| 2007 | 17 ha | 25 ha | 42 ha |
| 2008 | 9 ha | 25 ha | 34 ha |
| 2009 | 14 ha | 40 ha | 54 ha |
| 2010 | 10 ha | 39 ha | 49 ha |
| 2011 | 12 ha | 9 ha | 21 ha |
| 2012 | 12 ha | 26 ha | 38 ha |
| 2013 | 4 ha | 16 ha | 20 ha |
| 2014 | 7 ha | 20 ha | 27 ha |
| 2015 | 4 ha | 21 ha | 25 ha |
| 2016 | 14 ha | 38 ha | 52 ha |
| 2017 | 4 ha | 24 ha | 28 ha |
| 2018 | 87 ha | 59 ha | 146 ha |
| 2019 | 22 ha | 32 ha | 54 ha |
| 2020 | 6 ha | 5 ha | 11 ha |
| 2021 | 5 ha | 13 ha | 18 ha |
| 2022 | 10 ha | 23 ha | 33 ha |
| 2023 | 7 ha | 10 ha | 17 ha |
| 2024 | 12 ha | 18 ha | 30 ha |
| 2025 | 8 ha | 21 ha | 29 ha |
What is causing deforestation around Higashihiroshima?
- Loggingcan grow back60% · 579 ha
- Towns and roadscleared for good31% · 296 ha
- Mining and energycleared for good5.4% · 52 ha
Also: wildfires, 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
- 20,800 ha
- Forest in 2020
- 20,500 ha
- Overall change
- −250 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Higashihiroshima stayed about the same size, at about 20,500 hectares: new forest grew on about 170 hectares, and about 421 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 Higashihiroshima
What is the air quality (AQI) in Higashihiroshima right now?
The latest reading for Higashihiroshima shows an AQI of 39 (Good), measured Nov 12, 03:00 local time by the 東広島市西条中央２丁目１５－１ ground monitoring station, 1.1 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Higashihiroshima today?
At AQI 39 (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 Higashihiroshima been like this week?
Over the last 7 days, the CAMS air-quality model put Higashihiroshima's daily AQI at 32 on average, from 22 on Nov 10 to an hourly peak of 68 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 Higashihiroshima lost since 2001?
Since 2001, the area within 10 km of Higashihiroshima has lost about 960 hectares of forest (about 1,300 football pitches): 4.9% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 348 hectares (36%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 26 hectares a year in 2021–2025, down from 58 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Higashihiroshima stayed about the same size, at about 20,500 hectares: new forest grew on about 170 hectares, and about 421 hectares were lost.
What is the tree count in Higashihiroshima?
Higashihiroshima has an estimated 97,278 trees across the 12.36 km² of land measured — 31.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Higashihiroshima need?
Higashihiroshima has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Higashihiroshima's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Saijocho Misonou, 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 Saijocho Misonou; the tree count is an estimate derived from that cover.
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