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Airleaf

City report · South Korea

Daegu Air quality today

Air quality in Daegu currently reads AQI 75 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.

Air quality right now

AQI 75

Moderate

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
22.0
tree cover
3.6%
trees in this area
11.2K
more trees needed
82.3K

Measured across a 2 km radius around Jongno 1(il)-ga, Jung-gu, Daegu, South Korea (12.57 km²), from a satellite image of Sep 12, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Daegu · AQI 75 (Moderate)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 12, 2026

Daegu's tree count comes to 11,219 trees across 12.47 km² of land, 26 points below the 30% tree-cover level considered healthy for this area, so roughly 82,275 more trees would close the gap.

Air quality detail

Air quality in Daegu today: AQI 75, Moderate

Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.

Ground station · 수창동, 800 m away · median of 20 stations

Health signal

Unusually sensitive people should consider limiting long outdoor exertion.

PM2.5

22.0

PM10

35.5

NO₂

63.4

O₃

7.4

SO₂

6.0

CO

698.8

Data: OpenAQ · Korea Air Ministry of Environment, Korea Environment Corporation · AirKorea

Outdoor exercise
Fine for most people; unusually sensitive people should take long or hard exercise easier
Windows
Fine to open; close them if you are sensitive to pollution
Mask
Not needed for most people
Air purifier
Worth running if you are sensitive

Over the last 7 days, the CAMS air-quality model put Daegu's daily AQI at 62 on average, from 46 on Nov 6 to an hourly peak of 142 on Nov 5.

Last 7 days · model estimateavg 62 · peak 142
Nov 5: AQI 77 (peak 142)Nov 6: AQI 46 (peak 72)Nov 7: AQI 49 (peak 72)Nov 8: AQI 70 (peak 82)Nov 9: AQI 66 (peak 80)Nov 10: AQI 55 (peak 74)Nov 11: AQI 72 (peak 75)
Nov 5Nov 11

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

Tree cover detail

Tree cover in Daegu: Critically low

3.6% tree cover against a 30% healthy-neighborhood target, across 12.47 km² of land.

26 points below target

Trees in this area

11,219

Target trees

93,494

More trees needed

82,275

CO₂ if planted / yr

1,810 t

Deforestation · 2001–2025

How much forest has Daegu lost?

Since 2001, the area within 10 km of Daegu has lost about 354 hectares of forest (about 500 football pitches): 3.7% of the forest it had in 2000. The biggest cause was towns and roads (37%). About 132 hectares (37%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Daegu, June 2017

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

Forest lost since 2001
354 haabout 500 football pitches
Share of its forest
3.7%of what there was in 2000
Cleared for good
132 hadeforestation: turned into farms, mines or towns

The worst year was 2025, when about 163 hectares of forest were lost.

Forest lost each year around Daegu, 2001–2025

Hectares of forest lost each year

Forest lost each year around Daegu, 2001–2025. Use the left and right arrow keys to read each year.163

Show the figures as a table
Forest lost each year around Daegu, 2001–2025
YearCleared for goodCan grow backTotal
20013 haunder 1 ha3 ha
20022 haunder 1 ha2 ha
2003under 1 haunder 1 ha1 ha
20044 haunder 1 ha4 ha
20054 ha25 ha29 ha
20065 ha8 ha12 ha
200712 ha2 ha14 ha
20089 haunder 1 ha9 ha
200918 ha8 ha26 ha
20108 haunder 1 ha8 ha
20111 haunder 1 ha2 ha
20122 haunder 1 ha2 ha
20135 haunder 1 ha5 ha
2014under 1 haunder 1 haunder 1 ha
20159 ha9 ha18 ha
201617 ha5 ha21 ha
201711 haunder 1 ha12 ha
20184 haunder 1 ha4 ha
20191 haunder 1 ha2 ha
2020under 1 haunder 1 haunder 1 ha
20211 haunder 1 ha1 ha
20226 ha2 ha8 ha
20232 ha1 ha3 ha
20243 haunder 1 ha3 ha
20255 ha158 ha163 ha

What is causing deforestation around Daegu?

  • Towns and roadscleared for good37% · 132 ha
  • Loggingcan grow back17% · 59 ha
  • Unknown causescause unknown46% · 163 ha

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
11,400 ha
Forest in 2020
11,400 ha
Overall change
+20 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Daegu stayed about the same size, at about 11,400 hectares: new forest grew on about 211 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 Daegu

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

  • Gyeongsan-si

    South Korea

    14.2 km
    Tree cover
    19%
    Air quality
    68
  • Gumi

    South Korea

    35.5 km
    Tree cover
    56%
    Air quality
    89
  • Gimcheon

    South Korea

    50.8 km
    Tree cover
    31%
    Air quality
    78
  • Gyeongju

    South Korea

    56.0 km
    Tree cover
    13%
    Air quality
    58
  • Yangsan

    South Korea

    71.1 km
    Tree cover
    42%
    Air quality
    60
  • Pohang

    South Korea

    71.9 km
    Tree cover
    20%
    Air quality
    71

Also compared:Daegu vs SeoulDaegu vs BusanDaegu vs IncheonDaegu vs Daejeon

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

Questions about Daegu

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

The latest reading for Daegu shows an AQI of 75 (Moderate), measured Nov 12, 00:00 local time by 20 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 수창동, 800 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.

Is it safe to exercise outside in Daegu today?

At AQI 75 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Daegu been like this week?

Over the last 7 days, the CAMS air-quality model put Daegu's daily AQI at 62 on average, from 46 on Nov 6 to an hourly peak of 142 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 Daegu lost since 2001?

Since 2001, the area within 10 km of Daegu has lost about 354 hectares of forest (about 500 football pitches): 3.7% of the forest it had in 2000. The biggest cause was towns and roads (37%). About 132 hectares (37%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Daegu stayed about the same size, at about 11,400 hectares: new forest grew on about 211 hectares, and about 191 hectares were lost.

What is the tree count in Daegu?

Daegu has an estimated 11,219 trees across the 12.47 km² of land measured — 3.6% tree cover, 26 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Daegu need?

Daegu needs roughly 82,275 more trees to close a 26-point shortfall against its 30% tree-cover target — about 1,810 t of extra CO₂ absorbed per year once grown.

How are Daegu's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Jongno 1(il)-ga, 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 Jongno 1(il)-ga; the tree count is an estimate derived from that cover.

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