City report · Jeollanam-do, South Korea
Yeosu Air quality today
Air quality in Yeosu currently reads AQI 58 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 58
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 13.0
- tree cover
- 47.7%
- trees in this area
- 135K
- more trees needed
- 0
Measured across a 2 km radius around Hak-dong, Yeosu-si, Jeollanam-do, South Korea (12.57 km²), from a satellite image of Sep 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Yeosu · AQI 58 (Moderate)
Yeosu's tree count comes to 135,018 trees across 11.33 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Yeosu today: AQI 58, Moderate
Main pollutant: PM2.5 · Observed Nov 12, 01:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 여천동(여수), 800 m away · median of 6 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
13.0
PM10
15.5
NO₂
21.6
O₃
36.1
SO₂
7.3
CO
590.0
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 Yeosu's daily AQI at 48 on average, from 36 on Nov 7 to an hourly peak of 87 on Nov 6.
Where Yeosu stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Yeosu: Healthy tree cover
47.7% tree cover against a 30% healthy-neighborhood target, across 11.33 km² of land.
Trees in this area
135,018
Target trees
135,018
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Yeosu lost?
Since 2001, the area within 10 km of Yeosu has lost about 371 hectares of forest (about 520 football pitches): 4.3% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 6 km north of the city center.
- Forest lost since 2001
- 371 haabout 520 football pitches
- Share of its forest
- 4.3%of what there was in 2000
- Cleared for good
- 296 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 74 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 | 6 ha | 6 ha | 11 ha |
| 2002 | 3 ha | 4 ha | 7 ha |
| 2003 | 2 ha | under 1 ha | 2 ha |
| 2004 | 3 ha | 1 ha | 5 ha |
| 2005 | 7 ha | under 1 ha | 8 ha |
| 2006 | 3 ha | 4 ha | 7 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | 71 ha | 3 ha | 74 ha |
| 2009 | 26 ha | 1 ha | 27 ha |
| 2010 | 10 ha | 8 ha | 18 ha |
| 2011 | 28 ha | under 1 ha | 28 ha |
| 2012 | 32 ha | 3 ha | 35 ha |
| 2013 | 2 ha | under 1 ha | 3 ha |
| 2014 | 2 ha | 2 ha | 4 ha |
| 2015 | 10 ha | under 1 ha | 10 ha |
| 2016 | 5 ha | 5 ha | 10 ha |
| 2017 | 16 ha | under 1 ha | 17 ha |
| 2018 | 6 ha | under 1 ha | 6 ha |
| 2019 | 9 ha | under 1 ha | 9 ha |
| 2020 | 10 ha | 2 ha | 12 ha |
| 2021 | 21 ha | under 1 ha | 22 ha |
| 2022 | 12 ha | under 1 ha | 12 ha |
| 2023 | 3 ha | under 1 ha | 3 ha |
| 2024 | 4 ha | 21 ha | 25 ha |
| 2025 | 6 ha | 10 ha | 16 ha |
What is causing deforestation around Yeosu?
- Towns and roadscleared for good67% · 249 ha
- Loggingcan grow back18% · 66 ha
- Farms, pasture and plantationscleared for good7.5% · 28 ha
Also: mining and energy, 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
- 10,800 ha
- Forest in 2020
- 10,800 ha
- Overall change
- +37 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Yeosu stayed about the same size, at about 10,800 hectares: new forest grew on about 352 hectares, and about 314 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 Yeosu
Same 2 km radius, same index — so they compare directly.
- Gwangyang20.3 km
South Korea
- Tree cover
- 38%
- Air quality
- 70
- Suncheon26.4 km
South Korea
- Tree cover
- 46%
- Air quality
- 62
- Chinju61.6 km
South Korea
- Tree cover
- 42%
- Air quality
- 62
- Gwangju80.9 km
South Korea
- Tree cover
- 7%
- Air quality
- 73
- Masan86.0 km
South Korea
- Tree cover
- 20%
- Air quality
- 71
- Geoje95.5 km
South Korea
- Tree cover
- 79%
- Air quality
- 66
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Frequently asked
Questions about Yeosu
What is the air quality (AQI) in Yeosu right now?
The latest reading for Yeosu shows an AQI of 58 (Moderate), measured Nov 12, 01:00 local time by 6 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 여천동(여수), 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 Yeosu today?
At AQI 58 (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 Yeosu been like this week?
Over the last 7 days, the CAMS air-quality model put Yeosu's daily AQI at 48 on average, from 36 on Nov 7 to an hourly peak of 87 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 Yeosu lost since 2001?
Since 2001, the area within 10 km of Yeosu has lost about 371 hectares of forest (about 520 football pitches): 4.3% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Yeosu stayed about the same size, at about 10,800 hectares: new forest grew on about 352 hectares, and about 314 hectares were lost.
What is the tree count in Yeosu?
Yeosu has an estimated 135,018 trees across the 11.33 km² of land measured — 47.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Yeosu need?
Yeosu has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Yeosu's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Hak-dong, 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 Hak-dong; the tree count is an estimate derived from that cover.
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