City report · Gyeonggi-do, South Korea
Icheon-si Air quality today
Air quality in Icheon-si currently reads AQI 121 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 121
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 43.5
- tree cover
- 35.6%
- trees in this area
- 112K
- more trees needed
- 0
Measured across a 2 km radius around Seohui-ro, Icheon-si, Gyeonggi-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.
Icheon-si · AQI 121 (Unhealthy for sensitive groups)
Icheon-si's tree count comes to 111,617 trees across 12.54 km² of land, already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Icheon-si today: AQI 121, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · 창전동, 500 m away · median of 2 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
43.5
PM10
57.0
NO₂
60.0
O₃
6.3
SO₂
6.0
CO
624.4
Data: OpenAQ · Korea Air Ministry of Environment, Korea Environment Corporation · AirKorea
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Icheon-si's daily AQI at 67 on average, from 53 on Nov 6 to an hourly peak of 106 on Nov 11.
Where Icheon-si stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Icheon-si: Healthy tree cover
35.6% tree cover against a 35% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
111,617
Target trees
111,617
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Icheon-si lost?
Since 2001, the area within 10 km of Icheon-si has lost about 1,070 hectares of forest (about 1,500 football pitches): 14% 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 southwest of the city center.
- Forest lost since 2001
- 1,070 haabout 1,500 football pitches
- Share of its forest
- 14%of what there was in 2000
- Cleared for good
- 857 hadeforestation: turned into farms, mines or towns
The worst year was 2018, when about 92 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 | 24 ha | 4 ha | 28 ha |
| 2002 | 9 ha | 1 ha | 11 ha |
| 2003 | 25 ha | under 1 ha | 26 ha |
| 2004 | 36 ha | 2 ha | 38 ha |
| 2005 | 42 ha | 5 ha | 47 ha |
| 2006 | 51 ha | 5 ha | 56 ha |
| 2007 | 37 ha | 4 ha | 41 ha |
| 2008 | 42 ha | 3 ha | 45 ha |
| 2009 | 21 ha | 6 ha | 26 ha |
| 2010 | 64 ha | 6 ha | 70 ha |
| 2011 | 87 ha | 5 ha | 91 ha |
| 2012 | 55 ha | 10 ha | 65 ha |
| 2013 | 35 ha | 24 ha | 58 ha |
| 2014 | 32 ha | 16 ha | 48 ha |
| 2015 | 21 ha | 8 ha | 29 ha |
| 2016 | 17 ha | 20 ha | 37 ha |
| 2017 | 17 ha | 18 ha | 34 ha |
| 2018 | 86 ha | 6 ha | 92 ha |
| 2019 | 18 ha | 13 ha | 31 ha |
| 2020 | 25 ha | 18 ha | 44 ha |
| 2021 | 10 ha | 3 ha | 14 ha |
| 2022 | 27 ha | 4 ha | 31 ha |
| 2023 | 31 ha | 4 ha | 35 ha |
| 2024 | 38 ha | 9 ha | 47 ha |
| 2025 | 8 ha | 16 ha | 24 ha |
What is causing deforestation around Icheon-si?
- Towns and roadscleared for good80% · 856 ha
- Loggingcan grow back19% · 203 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
- 9,560 ha
- Forest in 2020
- 8,850 ha
- Overall change
- −706 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Icheon-si shrank from about 9,560 hectares to 8,850 hectares, a net loss of about 706 hectares (−7.4%). New forest grew on about 230 hectares, but 936 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 Icheon-si
What is the air quality (AQI) in Icheon-si right now?
The latest reading for Icheon-si shows an AQI of 121 (Unhealthy for sensitive groups), measured Nov 12, 00:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 창전동, 500 m away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Icheon-si today?
At AQI 121 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Icheon-si been like this week?
Over the last 7 days, the CAMS air-quality model put Icheon-si's daily AQI at 67 on average, from 53 on Nov 6 to an hourly peak of 106 on Nov 11. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Icheon-si lost since 2001?
Since 2001, the area within 10 km of Icheon-si has lost about 1,070 hectares of forest (about 1,500 football pitches): 14% 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 Icheon-si shrank from about 9,560 hectares to 8,850 hectares, a net loss of about 706 hectares (−7.4%). New forest grew on about 230 hectares, but 936 hectares were lost.
What is the tree count in Icheon-si?
Icheon-si has an estimated 111,617 trees across the 12.54 km² of land measured — 35.6% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Icheon-si need?
Icheon-si has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Icheon-si's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Seohui-ro, 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 Seohui-ro; the tree count is an estimate derived from that cover.
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