City report · Kanagawa, Japan
Atsugi Air quality today
Air quality in Atsugi currently reads AQI 46 (Good): Air quality is satisfactory for everyone.
AQI 46
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 8.2
- tree cover
- 9.4%
- trees in this area
- 29.2K
- more trees needed
- 64.1K
Measured across a 2 km radius around 4 Atsugicho, Atsugi, Kanagawa 243-0011, Japan (12.57 km²), from a satellite image of Aug 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Atsugi · AQI 46 (Good)
Atsugi's tree count comes to 29,236 trees across 12.44 km² of land, 21 points below the 30% tree-cover level considered healthy for this area, so roughly 64,070 more trees would close the gap.
Air quality detail
Air quality in Atsugi today: AQI 46, Good
Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Katsuse, Ebina, Kanagawa, Japan (海老名市役所海老名市), 2.2 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.2
PM10
8.6
NO₂
—
O₃
—
SO₂
—
CO
—
Data: 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), Kanagawa Prefectural Environmental Science Research Center, Environmental Monitoring Information Division (神奈川県環境科学センター 環境監視情報課)
- 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 Atsugi's daily AQI at 62 on average, from 39 on Nov 5 to an hourly peak of 99 on Nov 6.
Where Atsugi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Atsugi: Critically low
9.4% tree cover against a 30% healthy-neighborhood target, across 12.44 km² of land.
Trees in this area
29,236
Target trees
93,306
More trees needed
64,070
CO₂ if planted / yr
1,410 t
Deforestation · 2001–2025
How much forest has Atsugi lost?
Since 2001, the area within 10 km of Atsugi has lost about 104 hectares of forest (about 150 football pitches): 1.9% of the forest it had in 2000. Most of it (77%) 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
- 104 haabout 150 football pitches
- Share of its forest
- 1.9%of what there was in 2000
- Cleared for good
- 80 hadeforestation: turned into farms, mines or towns
The worst year was 2016, when about 13 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 | 1 ha | 2 ha | 3 ha |
| 2002 | 3 ha | under 1 ha | 4 ha |
| 2003 | 1 ha | under 1 ha | 2 ha |
| 2004 | 6 ha | 2 ha | 7 ha |
| 2005 | under 1 ha | under 1 ha | 1 ha |
| 2006 | 5 ha | 2 ha | 7 ha |
| 2007 | 4 ha | 3 ha | 7 ha |
| 2008 | 3 ha | 1 ha | 4 ha |
| 2009 | 3 ha | under 1 ha | 4 ha |
| 2010 | 3 ha | under 1 ha | 4 ha |
| 2011 | 5 ha | under 1 ha | 5 ha |
| 2012 | 4 ha | 2 ha | 6 ha |
| 2013 | under 1 ha | 1 ha | 2 ha |
| 2014 | 2 ha | under 1 ha | 2 ha |
| 2015 | 8 ha | under 1 ha | 8 ha |
| 2016 | 11 ha | 2 ha | 13 ha |
| 2017 | 3 ha | under 1 ha | 4 ha |
| 2018 | 7 ha | 3 ha | 10 ha |
| 2019 | 3 ha | under 1 ha | 3 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | 3 ha | under 1 ha | 4 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 2 ha | under 1 ha | 2 ha |
| 2024 | 2 ha | under 1 ha | 2 ha |
| 2025 | under 1 ha | under 1 ha | 2 ha |
What is causing deforestation around Atsugi?
- Towns and roadscleared for good74% · 77 ha
- Loggingcan grow back8.2% · 9 ha
- Mining and energycleared for good2.7% · 3 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
- 6,980 ha
- Forest in 2020
- 6,790 ha
- Overall change
- −192 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Atsugi shrank from about 6,980 hectares to 6,790 hectares, a net loss of about 192 hectares (−2.8%). New forest grew on about 75 hectares, but 266 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 Atsugi
What is the air quality (AQI) in Atsugi right now?
The latest reading for Atsugi shows an AQI of 46 (Good), measured Nov 12, 00:00 local time by the Katsuse, Ebina, Kanagawa, Japan (海老名市役所海老名市) ground monitoring station, 2.2 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Atsugi today?
At AQI 46 (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 Atsugi been like this week?
Over the last 7 days, the CAMS air-quality model put Atsugi's daily AQI at 62 on average, from 39 on Nov 5 to an hourly peak of 99 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 Atsugi lost since 2001?
Since 2001, the area within 10 km of Atsugi has lost about 104 hectares of forest (about 150 football pitches): 1.9% of the forest it had in 2000. Most of it (77%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Atsugi shrank from about 6,980 hectares to 6,790 hectares, a net loss of about 192 hectares (−2.8%). New forest grew on about 75 hectares, but 266 hectares were lost.
What is the tree count in Atsugi?
Atsugi has an estimated 29,236 trees across the 12.44 km² of land measured — 9.4% tree cover, 21 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Atsugi need?
Atsugi needs roughly 64,070 more trees to close a 21-point shortfall against its 30% tree-cover target — about 1,410 t of extra CO₂ absorbed per year once grown.
How are Atsugi's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 4 Atsugicho, 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 4 Atsugicho; the tree count is an estimate derived from that cover.
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