City report · Gyeonggi-do, South Korea
Hwado Air quality today
Air quality in Hwado currently reads AQI 84 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 84
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 27.0
- tree cover
- 52.9%
- trees in this area
- 166K
- more trees needed
- 0
Measured across a 2 km radius around Maseokjungang-ro, Hwado-eup, Namyangju-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.
Hwado · AQI 84 (Moderate)
Hwado's tree count comes to 166,190 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Hwado today: AQI 84, 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 · 오남읍, 10.4 km away · median of 24 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
27.0
PM10
41.0
NO₂
51.6
O₃
8.6
SO₂
6.8
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 Hwado's daily AQI at 78 on average, from 56 on Nov 6 to an hourly peak of 152 on Nov 11.
Where Hwado stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hwado: Healthy tree cover
52.9% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
166,190
Target trees
166,190
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Hwado lost?
Since 2001, the area within 10 km of Hwado has lost about 1,630 hectares of forest (about 2,300 football pitches): 7.7% of the forest it had in 2000. Most of it (54%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km southeast of the city center.
- Forest lost since 2001
- 1,630 haabout 2,300 football pitches
- Share of its forest
- 7.7%of what there was in 2000
- Cleared for good
- 873 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 42 hectares a year in 2021–2025, down from 113 hectares a year in 2016–2020. The worst year was 2017, when about 175 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 | 5 ha | 29 ha |
| 2002 | 11 ha | 5 ha | 16 ha |
| 2003 | 25 ha | 9 ha | 34 ha |
| 2004 | 36 ha | 17 ha | 53 ha |
| 2005 | 46 ha | 24 ha | 69 ha |
| 2006 | 83 ha | 25 ha | 108 ha |
| 2007 | 49 ha | 10 ha | 59 ha |
| 2008 | 41 ha | 11 ha | 51 ha |
| 2009 | 20 ha | 27 ha | 47 ha |
| 2010 | 36 ha | 23 ha | 59 ha |
| 2011 | 25 ha | 99 ha | 124 ha |
| 2012 | 38 ha | 26 ha | 64 ha |
| 2013 | 19 ha | 11 ha | 30 ha |
| 2014 | 17 ha | 14 ha | 31 ha |
| 2015 | 28 ha | 52 ha | 79 ha |
| 2016 | 51 ha | 80 ha | 131 ha |
| 2017 | 57 ha | 118 ha | 175 ha |
| 2018 | 44 ha | 56 ha | 100 ha |
| 2019 | 44 ha | 46 ha | 90 ha |
| 2020 | 52 ha | 17 ha | 69 ha |
| 2021 | 34 ha | 21 ha | 54 ha |
| 2022 | 27 ha | 30 ha | 57 ha |
| 2023 | 16 ha | 7 ha | 23 ha |
| 2024 | 31 ha | 8 ha | 39 ha |
| 2025 | 20 ha | 19 ha | 39 ha |
What is causing deforestation around Hwado?
- Towns and roadscleared for good52% · 843 ha
- Loggingcan grow back46% · 746 ha
- Mining and energycleared for good1.8% · 29 ha
Also: 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
- 22,400 ha
- Forest in 2020
- 21,500 ha
- Overall change
- −921 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hwado shrank from about 22,400 hectares to 21,500 hectares, a net loss of about 921 hectares (−4.1%). New forest grew on about 262 hectares, but 1,180 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 Hwado
Same 2 km radius, same index — so they compare directly.
- Hanam15.4 km
South Korea
- Tree cover
- 30%
- Air quality
- 88
- Guri-si16.0 km
South Korea
- Tree cover
- 31%
- Air quality
- 84
- Uijeongbu-si24.9 km
South Korea
- Tree cover
- 23%
- Air quality
- 81
- Seongnam-si28.1 km
South Korea
- Tree cover
- 32%
- Air quality
- 85
- Yangju29.5 km
South Korea
- Tree cover
- 33%
- Air quality
- 73
- Seoul30.5 km
South Korea
- Tree cover
- 20%
- Air quality
- 90
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Frequently asked
Questions about Hwado
What is the air quality (AQI) in Hwado right now?
The latest reading for Hwado shows an AQI of 84 (Moderate), measured Nov 12, 01:00 local time by 24 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 오남읍, 10.4 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Hwado today?
At AQI 84 (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 Hwado been like this week?
Over the last 7 days, the CAMS air-quality model put Hwado's daily AQI at 78 on average, from 56 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 Hwado lost since 2001?
Since 2001, the area within 10 km of Hwado has lost about 1,630 hectares of forest (about 2,300 football pitches): 7.7% of the forest it had in 2000. Most of it (54%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss is slowing down: about 42 hectares a year in 2021–2025, down from 113 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Hwado shrank from about 22,400 hectares to 21,500 hectares, a net loss of about 921 hectares (−4.1%). New forest grew on about 262 hectares, but 1,180 hectares were lost.
What is the tree count in Hwado?
Hwado has an estimated 166,190 trees across the 12.57 km² measured — 52.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Hwado need?
Hwado has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Hwado's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Maseokjungang-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 Maseokjungang-ro; the tree count is an estimate derived from that cover.
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