City report · Gyeonggi-do, South Korea
Uijeongbu-si Air quality today
Air quality in Uijeongbu-si currently reads AQI 81 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 81
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 25.0
- tree cover
- 22.8%
- trees in this area
- 71.6K
- more trees needed
- 22.6K
Measured across a 2 km radius around Taepyeong-ro, Uijeongbu-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.
Uijeongbu-si · AQI 81 (Moderate)
Uijeongbu-si's tree count comes to 71,628 trees across 12.57 km², 7 points below the 30% tree-cover level considered healthy for this area, so roughly 22,619 more trees would close the gap.
Air quality detail
Air quality in Uijeongbu-si today: AQI 81, 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 · 의정부동, 900 m away · median of 7 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
25.0
PM10
36.0
NO₂
47.2
O₃
10.0
SO₂
6.3
CO
601.4
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 Uijeongbu-si's daily AQI at 80 on average, from 56 on Nov 6 to an hourly peak of 169 on Nov 4.
Where Uijeongbu-si stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Uijeongbu-si: Below target
22.8% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
71,628
Target trees
94,247
More trees needed
22,619
CO₂ if planted / yr
497.6 t
Deforestation · 2001–2025
How much forest has Uijeongbu-si lost?
Since 2001, the area within 10 km of Uijeongbu-si has lost about 563 hectares of forest (about 790 football pitches): 3.6% of the forest it had in 2000. Most of it (62%) 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 northwest of the city center.
- Forest lost since 2001
- 563 haabout 790 football pitches
- Share of its forest
- 3.6%of what there was in 2000
- Cleared for good
- 350 hadeforestation: turned into farms, mines or towns
The worst year was 2015, 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 | under 1 ha | 6 ha |
| 2002 | 14 ha | under 1 ha | 14 ha |
| 2003 | 10 ha | 4 ha | 15 ha |
| 2004 | 3 ha | under 1 ha | 4 ha |
| 2005 | 24 ha | 5 ha | 29 ha |
| 2006 | 17 ha | 6 ha | 23 ha |
| 2007 | 8 ha | 2 ha | 10 ha |
| 2008 | 10 ha | 5 ha | 14 ha |
| 2009 | 28 ha | 6 ha | 34 ha |
| 2010 | 18 ha | 8 ha | 25 ha |
| 2011 | 14 ha | 4 ha | 18 ha |
| 2012 | 9 ha | 9 ha | 19 ha |
| 2013 | 8 ha | 1 ha | 9 ha |
| 2014 | 27 ha | 13 ha | 40 ha |
| 2015 | 39 ha | 35 ha | 74 ha |
| 2016 | 20 ha | 25 ha | 45 ha |
| 2017 | 9 ha | 25 ha | 34 ha |
| 2018 | 9 ha | 2 ha | 10 ha |
| 2019 | 13 ha | 4 ha | 17 ha |
| 2020 | 15 ha | 10 ha | 25 ha |
| 2021 | 13 ha | 10 ha | 23 ha |
| 2022 | 9 ha | 3 ha | 12 ha |
| 2023 | 10 ha | 2 ha | 12 ha |
| 2024 | 10 ha | 9 ha | 19 ha |
| 2025 | 9 ha | 23 ha | 33 ha |
What is causing deforestation around Uijeongbu-si?
- Towns and roadscleared for good60% · 336 ha
- Loggingcan grow back34% · 191 ha
- Farms, pasture and plantationscleared for good2.5% · 14 ha
Also: wildfires, 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
- 18,000 ha
- Forest in 2020
- 17,800 ha
- Overall change
- −233 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Uijeongbu-si stayed about the same size, at about 17,800 hectares: new forest grew on about 315 hectares, and about 548 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 Uijeongbu-si
Same 2 km radius, same index — so they compare directly.
- Guri-si17.8 km
South Korea
- Tree cover
- 31%
- Air quality
- 84
- Seoul20.4 km
South Korea
- Tree cover
- 20%
- Air quality
- 90
- Goyang-si20.9 km
South Korea
- Tree cover
- 46%
- Air quality
- 97
- Hwado24.9 km
South Korea
- Tree cover
- 53%
- Air quality
- 84
- Hanam26.4 km
South Korea
- Tree cover
- 30%
- Air quality
- 88
- Gimpo-si32.1 km
South Korea
- Tree cover
- 22%
- Air quality
- 97
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Frequently asked
Questions about Uijeongbu-si
What is the air quality (AQI) in Uijeongbu-si right now?
The latest reading for Uijeongbu-si shows an AQI of 81 (Moderate), measured Nov 12, 01:00 local time by 7 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 의정부동, 900 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Uijeongbu-si today?
At AQI 81 (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 Uijeongbu-si been like this week?
Over the last 7 days, the CAMS air-quality model put Uijeongbu-si's daily AQI at 80 on average, from 56 on Nov 6 to an hourly peak of 169 on Nov 4. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Uijeongbu-si lost since 2001?
Since 2001, the area within 10 km of Uijeongbu-si has lost about 563 hectares of forest (about 790 football pitches): 3.6% of the forest it had in 2000. Most of it (62%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Uijeongbu-si stayed about the same size, at about 17,800 hectares: new forest grew on about 315 hectares, and about 548 hectares were lost.
What is the tree count in Uijeongbu-si?
Uijeongbu-si has an estimated 71,628 trees across the 12.57 km² measured — 22.8% tree cover, 7 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Uijeongbu-si need?
Uijeongbu-si needs roughly 22,619 more trees to close a 7-point shortfall against its 30% tree-cover target — about 497.6 t of extra CO₂ absorbed per year once grown.
How are Uijeongbu-si's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Taepyeong-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 Taepyeong-ro; the tree count is an estimate derived from that cover.
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