City report · Gyeonggi-do, South Korea
Hanam Air quality today
Air quality in Hanam currently reads AQI 88 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 88
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 29.0
- tree cover
- 29.6%
- trees in this area
- 92.3K
- more trees needed
- 1.2K
Measured across a 2 km radius around South Korea, 경기도 하남시 신장1동 (12.57 km²), from a satellite image of Sep 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hanam · AQI 88 (Moderate)
Hanam's tree count comes to 92,340 trees across 12.48 km² of land, 0 points below the 30% tree-cover level considered healthy for this area, so roughly 1,248 more trees would close the gap.
Air quality detail
Air quality in Hanam today: AQI 88, 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 · 신장동, 800 m away · median of 9 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
29.0
PM10
48.0
NO₂
57.9
O₃
9.0
SO₂
6.3
CO
641.5
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 Hanam's daily AQI at 80 on average, from 56 on Nov 6 to an hourly peak of 169 on Nov 4.
Where Hanam stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hanam: Below target
29.6% tree cover against a 30% healthy-neighborhood target, across 12.48 km² of land.
Trees in this area
92,340
Target trees
93,588
More trees needed
1,248
CO₂ if planted / yr
27.5 t
Deforestation · 2001–2025
How much forest has Hanam lost?
Since 2001, the area within 10 km of Hanam has lost about 203 hectares of forest (about 280 football pitches): 1.7% of the forest it had in 2000. Most of it (58%) 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
- 203 haabout 280 football pitches
- Share of its forest
- 1.7%of what there was in 2000
- Cleared for good
- 119 hadeforestation: turned into farms, mines or towns
The worst year was 2009, when about 25 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 | 1 ha | under 1 ha | 1 ha |
| 2004 | 3 ha | 3 ha | 6 ha |
| 2005 | 4 ha | 2 ha | 6 ha |
| 2006 | 8 ha | 3 ha | 11 ha |
| 2007 | 5 ha | 2 ha | 7 ha |
| 2008 | 7 ha | 2 ha | 8 ha |
| 2009 | 4 ha | 21 ha | 25 ha |
| 2010 | 4 ha | 2 ha | 6 ha |
| 2011 | 4 ha | 5 ha | 9 ha |
| 2012 | 18 ha | 6 ha | 24 ha |
| 2013 | 1 ha | under 1 ha | 2 ha |
| 2014 | 5 ha | 4 ha | 9 ha |
| 2015 | 4 ha | under 1 ha | 4 ha |
| 2016 | 3 ha | 4 ha | 7 ha |
| 2017 | 11 ha | 9 ha | 20 ha |
| 2018 | 13 ha | 2 ha | 15 ha |
| 2019 | under 1 ha | 4 ha | 4 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | 1 ha | under 1 ha | 1 ha |
| 2023 | under 1 ha | 10 ha | 10 ha |
| 2024 | 4 ha | 2 ha | 6 ha |
| 2025 | 17 ha | 3 ha | 20 ha |
What is causing deforestation around Hanam?
- Towns and roadscleared for good59% · 119 ha
- Loggingcan grow back30% · 62 ha
- Wildfirescan grow back4.9% · 10 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
- 13,800 ha
- Forest in 2020
- 13,900 ha
- Overall change
- +77 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hanam stayed about the same size, at about 13,900 hectares: new forest grew on about 254 hectares, and about 177 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 Hanam
Same 2 km radius, same index — so they compare directly.
- Seongnam-si12.8 km
South Korea
- Tree cover
- 32%
- Air quality
- 85
- Hwado15.4 km
South Korea
- Tree cover
- 53%
- Air quality
- 84
- Seoul20.2 km
South Korea
- Tree cover
- 20%
- Air quality
- 90
- Uijeongbu-si26.4 km
South Korea
- Tree cover
- 23%
- Air quality
- 81
- Anyang-si29.6 km
South Korea
- Tree cover
- 40%
- Air quality
- 84
- Suwon32.7 km
South Korea
- Tree cover
- 20%
- Air quality
- 88
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Frequently asked
Questions about Hanam
What is the air quality (AQI) in Hanam right now?
The latest reading for Hanam shows an AQI of 88 (Moderate), measured Nov 12, 01:00 local time by 9 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 신장동, 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 Hanam today?
At AQI 88 (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 Hanam been like this week?
Over the last 7 days, the CAMS air-quality model put Hanam'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 Hanam lost since 2001?
Since 2001, the area within 10 km of Hanam has lost about 203 hectares of forest (about 280 football pitches): 1.7% of the forest it had in 2000. Most of it (58%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Hanam stayed about the same size, at about 13,900 hectares: new forest grew on about 254 hectares, and about 177 hectares were lost.
What is the tree count in Hanam?
Hanam has an estimated 92,340 trees across the 12.48 km² of land measured — 29.6% tree cover, 0 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hanam need?
Hanam needs roughly 1,248 more trees to close a 0-point shortfall against its 30% tree-cover target — about 27.5 t of extra CO₂ absorbed per year once grown.
How are Hanam'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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