City report · Osaka, Japan
Hirakata Air quality today
Air quality in Hirakata currently reads AQI 39 (Good): Air quality is satisfactory for everyone.
AQI 39
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.1
- tree cover
- 12.4%
- trees in this area
- 37.2K
- more trees needed
- 52.8K
Measured across a 2 km radius around 2 Okahigashicho, Hirakata, Osaka 573-0032, Japan (12.57 km²), from a satellite image of Aug 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hirakata · AQI 39 (Good)
Hirakata's tree count comes to 37,203 trees across 12 km² of land, 18 points below the 30% tree-cover level considered healthy for this area, so roughly 52,804 more trees would close the gap.
Air quality detail
Air quality in Hirakata today: AQI 39, Good
Main pollutant: PM2.5 · Observed Nov 12, 01:00 local time via OpenAQ and World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · 高槻市桃園町２－１, 5.1 km away · median of 16 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.1
PM10
11.9
NO₂
35.8
O₃
—
SO₂
2.6
CO
401.0
Data: OpenAQ · Ministry of the Environment Air Pollutant Wide Area Monitoring System, World Air Quality Index Project, Japan Atmospheric Environmental Regional Observation System (環境省大気汚染物質広域監視システム), Ozaka, Japan Environment Agency (大阪府 大気汚染監視)
- 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 Hirakata's daily AQI at 60 on average, from 42 on Nov 10 to an hourly peak of 110 on Nov 5.
Where Hirakata stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hirakata: Critically low
12.4% tree cover against a 30% healthy-neighborhood target, across 12 km² of land.
Trees in this area
37,203
Target trees
90,007
More trees needed
52,804
CO₂ if planted / yr
1,162 t
Deforestation · 2001–2025
How much forest has Hirakata lost?
Since 2001, the area within 10 km of Hirakata has lost about 217 hectares of forest (about 300 football pitches): 3.6% of the forest it had in 2000. Most of it (90%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 217 haabout 300 football pitches
- Share of its forest
- 3.6%of what there was in 2000
- Cleared for good
- 196 hadeforestation: turned into farms, mines or towns
The worst year was 2005, when about 25 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 | 4 ha | under 1 ha | 4 ha |
| 2002 | 3 ha | under 1 ha | 4 ha |
| 2003 | 2 ha | under 1 ha | 3 ha |
| 2004 | 10 ha | under 1 ha | 11 ha |
| 2005 | 23 ha | 2 ha | 25 ha |
| 2006 | 10 ha | under 1 ha | 11 ha |
| 2007 | 3 ha | under 1 ha | 3 ha |
| 2008 | 15 ha | 1 ha | 17 ha |
| 2009 | 3 ha | 1 ha | 4 ha |
| 2010 | 4 ha | under 1 ha | 4 ha |
| 2011 | 4 ha | under 1 ha | 5 ha |
| 2012 | 20 ha | under 1 ha | 20 ha |
| 2013 | 10 ha | under 1 ha | 10 ha |
| 2014 | 4 ha | under 1 ha | 4 ha |
| 2015 | 7 ha | under 1 ha | 8 ha |
| 2016 | 24 ha | under 1 ha | 24 ha |
| 2017 | 4 ha | under 1 ha | 4 ha |
| 2018 | 5 ha | 2 ha | 7 ha |
| 2019 | 6 ha | 7 ha | 13 ha |
| 2020 | 3 ha | under 1 ha | 3 ha |
| 2021 | 5 ha | under 1 ha | 5 ha |
| 2022 | 16 ha | under 1 ha | 16 ha |
| 2023 | 4 ha | under 1 ha | 4 ha |
| 2024 | 3 ha | under 1 ha | 3 ha |
| 2025 | 4 ha | under 1 ha | 4 ha |
What is causing deforestation around Hirakata?
- Towns and roadscleared for good83% · 181 ha
- Mining and energycleared for good6.9% · 15 ha
- Loggingcan grow back5% · 11 ha
Also: 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
- 6,880 ha
- Forest in 2020
- 6,730 ha
- Overall change
- −154 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hirakata shrank from about 6,880 hectares to 6,730 hectares, a net loss of about 154 hectares (−2.2%). New forest grew on about 105 hectares, but 259 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 Hirakata
What is the air quality (AQI) in Hirakata right now?
The latest reading for Hirakata shows an AQI of 39 (Good), measured Nov 12, 01:00 local time by 16 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 高槻市桃園町２－１, 5.1 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hirakata 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 Hirakata been like this week?
Over the last 7 days, the CAMS air-quality model put Hirakata's daily AQI at 60 on average, from 42 on Nov 10 to an hourly peak of 110 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Hirakata lost since 2001?
Since 2001, the area within 10 km of Hirakata has lost about 217 hectares of forest (about 300 football pitches): 3.6% of the forest it had in 2000. Most of it (90%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Hirakata shrank from about 6,880 hectares to 6,730 hectares, a net loss of about 154 hectares (−2.2%). New forest grew on about 105 hectares, but 259 hectares were lost.
What is the tree count in Hirakata?
Hirakata has an estimated 37,203 trees across the 12 km² of land measured — 12.4% tree cover, 18 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hirakata need?
Hirakata needs roughly 52,804 more trees to close a 18-point shortfall against its 30% tree-cover target — about 1,162 t of extra CO₂ absorbed per year once grown.
How are Hirakata's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 2 Okahigashicho, 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 2 Okahigashicho; the tree count is an estimate derived from that cover.
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