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City report · Aomori, Japan

Aomori Air quality today

Air quality in Aomori currently reads AQI 13 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 13

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
1.6
tree cover
2.7%
trees in this area
8.3K
more trees needed
83.5K

Measured across a 2 km radius around 2 Chome-14 Kitakanazawa, Aomori, 030-0855, Japan (12.57 km²), from a satellite image of Aug 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Aug 4, 2026

Aomori's tree count comes to 8,262 trees across 12.24 km² of land, 27 points below the 30% tree-cover level considered healthy for this area, so roughly 83,536 more trees would close the gap.

Air quality detail

Air quality in Aomori today: AQI 13, Good

Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 225 km, US EPA index. Values in µg/m³.

Estimate · model corrected with 2 station cities within 225 km, e.g. Hachinohe and Tomakomai

Health signal

Air quality is satisfactory for everyone.

PM2.5

1.6

PM10

2.5

NO₂

1.9

O₃

80.0

SO₂

0.6

CO

137.0

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 Aomori's daily AQI at 34 on average, from 21 on Nov 10 to an hourly peak of 69 on Nov 5.

Last 7 daysavg 34 · peak 69
Nov 5: AQI 40 (peak 69)Nov 6: AQI 28 (peak 61)Nov 7: AQI 43 (peak 60)Nov 8: AQI 47 (peak 60)Nov 9: AQI 26 (peak 52)Nov 10: AQI 21 (peak 37)Nov 11: AQI 32 (peak 42)
Nov 5Nov 11

Where Aomori stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Aomori: Critically low

2.7% tree cover against a 30% healthy-neighborhood target, across 12.24 km² of land.

27 points below target

Trees in this area

8,262

Target trees

91,798

More trees needed

83,536

CO₂ if planted / yr

1,838 t

Deforestation · 2001–2025

How much forest has Aomori lost?

Since 2001, the area within 10 km of Aomori has lost about 1,510 hectares of forest (about 2,100 football pitches): 13% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 180 hectares (12%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Aomori, July 2017

2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km southwest of the city center.

Forest lost since 2001
1,510 haabout 2,100 football pitches
Share of its forest
13%of what there was in 2000
Cleared for good
180 hadeforestation: turned into farms, mines or towns

Forest loss is speeding up: about 92 hectares a year in 2021–2025, up from 49 hectares a year in 2016–2020. The worst year was 2022, when about 134 hectares of forest were lost.

Forest lost each year around Aomori, 2001–2025

Hectares of forest lost each year

Forest lost each year around Aomori, 2001–2025. Use the left and right arrow keys to read each year.134

Show the figures as a table
Forest lost each year around Aomori, 2001–2025
YearCleared for goodCan grow backTotal
20015 ha71 ha76 ha
20027 ha47 ha53 ha
20032 ha27 ha29 ha
200411 ha76 ha87 ha
20055 ha26 ha31 ha
2006under 1 ha38 ha38 ha
20079 ha52 ha61 ha
200813 ha39 ha52 ha
20094 ha45 ha50 ha
20102 ha63 ha65 ha
20116 ha81 ha87 ha
201210 ha53 ha64 ha
20132 ha20 ha22 ha
20146 ha34 ha41 ha
201513 ha41 ha54 ha
20162 ha47 ha48 ha
2017under 1 ha40 ha40 ha
20181 ha30 ha31 ha
20192 ha51 ha54 ha
202010 ha62 ha72 ha
202141 ha87 ha128 ha
202210 ha124 ha134 ha
20233 ha56 ha59 ha
202410 ha65 ha75 ha
20255 ha57 ha62 ha

What is causing deforestation around Aomori?

  • Loggingcan grow back88% · 1,330 ha
  • Towns and roadscleared for good8.1% · 122 ha
  • Mining and energycleared for good3.6% · 55 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
11,500 ha
Forest in 2020
11,500 ha
Overall change
−42 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Aomori stayed about the same size, at about 11,500 hectares: new forest grew on about 419 hectares, and about 461 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 Aomori

Same 2 km radius, same index — so they compare directly.

  • 33.2 km
    Tree cover
    14%
    Air quality
    14
  • 73.6 km
    Tree cover
    19%
    Air quality
    40
  • 106.6 km
    Tree cover
    4%
    Air quality
    6
  • Morioka

    Japan

    129.1 km
    Tree cover
    16%
    Air quality
    16
  • Akita

    Japan

    133.0 km
    Tree cover
    9%
    Air quality
    24
  • Ōshū

    Japan

    190.2 km
    Tree cover
    14%
    Air quality
    28

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Aomori air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Aomori

What is the air quality (AQI) in Aomori right now?

The latest reading for Aomori shows an AQI of 13 (Good), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 225 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Aomori today?

At AQI 13 (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 Aomori been like this week?

Over the last 7 days, the CAMS air-quality model put Aomori's daily AQI at 34 on average, from 21 on Nov 10 to an hourly peak of 69 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 Aomori lost since 2001?

Since 2001, the area within 10 km of Aomori has lost about 1,510 hectares of forest (about 2,100 football pitches): 13% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 180 hectares (12%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is speeding up: about 92 hectares a year in 2021–2025, up from 49 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Aomori stayed about the same size, at about 11,500 hectares: new forest grew on about 419 hectares, and about 461 hectares were lost.

What is the tree count in Aomori?

Aomori has an estimated 8,262 trees across the 12.24 km² of land measured — 2.7% tree cover, 27 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Aomori need?

Aomori needs roughly 83,536 more trees to close a 27-point shortfall against its 30% tree-cover target — about 1,838 t of extra CO₂ absorbed per year once grown.

How are Aomori'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-14 Kitakanazawa; the tree count is an estimate derived from that cover.

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