City report · South Korea
Incheon Air quality today
Air quality in Incheon currently reads AQI 86 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 86
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 28.0
- tree cover
- 11.7%
- trees in this area
- 36.8K
- more trees needed
- 57.5K
Measured across a 2 km radius around South Korea, 인천광역시 남동구 간석1동 (12.57 km²), from a satellite image of Jun 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Incheon · AQI 86 (Moderate)
Incheon's tree count comes to 36,757 trees across 12.57 km², 18 points below the 30% tree-cover level considered healthy for this area, so roughly 57,491 more trees would close the gap.
Air quality detail
Air quality in Incheon today: AQI 86, 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 · 주안, 1.1 km away · median of 30 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
28.0
PM10
48.0
NO₂
86.9
O₃
7.5
SO₂
8.7
CO
882.1
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 Incheon's daily AQI at 74 on average, from 52 on Nov 6 to an hourly peak of 152 on Nov 11.
Where Incheon stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Incheon: Critically low
11.7% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
36,757
Target trees
94,248
More trees needed
57,491
CO₂ if planted / yr
1,265 t
Deforestation · 2001–2025
How much forest has Incheon lost?
Since 2001, the area within 10 km of Incheon has lost about 23 hectares of forest (about 32 football pitches): 1.6% of the forest it had in 2000. Most of it (91%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 23 haabout 32 football pitches
- Share of its forest
- 1.6%of what there was in 2000
- Cleared for good
- 21 hadeforestation: turned into farms, mines or towns
The worst year was 2006, when about 4 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 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | 3 ha | under 1 ha | 3 ha |
| 2006 | 4 ha | under 1 ha | 4 ha |
| 2007 | 1 ha | under 1 ha | 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 3 ha | under 1 ha | 3 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 2 ha | under 1 ha | 3 ha |
| 2021 | 2 ha | under 1 ha | 2 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | 1 ha | 1 ha |
What is causing deforestation around Incheon?
- Towns and roadscleared for good91% · 21 ha
- Unknown causescause unknown8.8% · 2 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
- 2,960 ha
- Forest in 2020
- 3,060 ha
- Overall change
- +103 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Incheon grew from about 2,960 hectares to 3,060 hectares, a net gain of about 103 hectares (+3.5%). New forest grew on about 143 hectares, while 41 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 Incheon
Same 2 km radius, same index — so they compare directly.
- Ansan-si18.0 km
South Korea
- Tree cover
- 30%
- Air quality
- 92
- Gimpo-si18.6 km
South Korea
- Tree cover
- 22%
- Air quality
- 97
- Anyang-si20.8 km
South Korea
- Tree cover
- 40%
- Air quality
- 84
- Goyang-si25.0 km
South Korea
- Tree cover
- 46%
- Air quality
- 97
- Hwaseong-si29.5 km
South Korea
- Tree cover
- 45%
- Air quality
- 82
Also compared:Incheon vs BusanIncheon vs DaeguIncheon vs Daejeon
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Frequently asked
Questions about Incheon
What is the air quality (AQI) in Incheon right now?
The latest reading for Incheon shows an AQI of 86 (Moderate), measured Nov 12, 01:00 local time by 30 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 주안, 1.1 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Incheon today?
At AQI 86 (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 Incheon been like this week?
Over the last 7 days, the CAMS air-quality model put Incheon's daily AQI at 74 on average, from 52 on Nov 6 to an hourly peak of 152 on Nov 11. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Incheon lost since 2001?
Since 2001, the area within 10 km of Incheon has lost about 23 hectares of forest (about 32 football pitches): 1.6% of the forest it had in 2000. Most of it (91%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Incheon grew from about 2,960 hectares to 3,060 hectares, a net gain of about 103 hectares (+3.5%). New forest grew on about 143 hectares, while 41 hectares were lost.
What is the tree count in Incheon?
Incheon has an estimated 36,757 trees across the 12.57 km² measured — 11.7% tree cover, 18 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Incheon need?
Incheon needs roughly 57,491 more trees to close a 18-point shortfall against its 30% tree-cover target — about 1,265 t of extra CO₂ absorbed per year once grown.
How are Incheon's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near South Korea, 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 South Korea; the tree count is an estimate derived from that cover.
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