South Korea · Gyeonggi-do · 17 cities
Air quality in Gyeonggi-do today The AQI right now, city by city
Right now, Seongnam-si has the cleanest air of the 17 cities we track in Gyeonggi-do (AQI 80, Moderate), and Pyeongtaek the worst (AQI 140, Unhealthy for sensitive groups). Hwado has the most tree cover, at 52.9% — #4 of 56 cities measured in South Korea.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
Average right now
AQI 95
Moderate
- cities tracked
- 17
- average tree cover
- 30.9%
- South Korea: 28.4%
- worst air now: Pyeongtaek
- 140
- cleanest air now: Seongnam-si
- 80
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Gyeonggi-do · average AQI 95
Air quality today across Gyeonggi-do, city by city
| Suwon | 82Moderate | 19.6% | 32.5K | #39 of 56 |
|---|---|---|---|---|
| Goyang-si | 91Moderate | 46.4% | — | #7 of 56 |
| Seongnam-si | 80Moderate | 31.7% | — | #21 of 56 |
| Bucheon-si | 96Moderate | 27.4% | 8.2K | #28 of 56 |
| Hwaseong-si | 96Moderate | 44.6% | — | #9 of 56 |
| Ansan-si | 92Moderate | 30.2% | — | #24 of 56 |
| Anyang-si | 84Moderate | 40.3% | — | #13 of 56 |
| Uijeongbu-si | 86Moderate | 22.8% | 22.6K | #31 of 56 |
| Pyeongtaek | 140Unhealthy for sensitive groups | 10.0% | 78.5K | #51 of 56 |
| Hanam | 94Moderate | 29.6% | 1.2K | #25 of 56 |
| Osan | 90Moderate | 20.3% | 30.5K | #36 of 56 |
| Gimpo-si | 96Moderate | 21.7% | 26.0K | #33 of 56 |
| Icheon-si | 121Unhealthy for sensitive groups | 35.6% | — | #16 of 56 |
| Guri-si | 93Moderate | 31.4% | — | #22 of 56 |
| Yangju | 84Moderate | 33.1% | — | #19 of 56 |
| Yeoju | 99Moderate | 28.3% | 4.8K | #27 of 56 |
| Hwado | 92Moderate | 52.9% | — | #4 of 56 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in South Korea.
Deforestation · 2001–2025
How much forest has Gyeonggi-do lost?
Since 2001, Gyeonggi-do has lost about 31,700 hectares of forest (about 44,000 football pitches): 8.3% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 15,400 hectares (48%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 31,700 haabout 44,000 football pitches
- Share of its forest
- 8.3%of what there was in 2000
- Cleared for good
- 15,400 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 356 ha | 177 ha | 533 ha |
| 2002 | 200 ha | 173 ha | 373 ha |
| 2003 | 353 ha | 124 ha | 477 ha |
| 2004 | 620 ha | 358 ha | 978 ha |
| 2005 | 688 ha | 364 ha | 1,050 ha |
| 2006 | 879 ha | 527 ha | 1,410 ha |
| 2007 | 657 ha | 379 ha | 1,040 ha |
| 2008 | 1,180 ha | 583 ha | 1,760 ha |
| 2009 | 840 ha | 745 ha | 1,590 ha |
| 2010 | 734 ha | 642 ha | 1,380 ha |
| 2011 | 1,030 ha | 834 ha | 1,860 ha |
| 2012 | 708 ha | 811 ha | 1,520 ha |
| 2013 | 361 ha | 521 ha | 882 ha |
| 2014 | 475 ha | 578 ha | 1,050 ha |
| 2015 | 555 ha | 713 ha | 1,270 ha |
| 2016 | 773 ha | 1,190 ha | 1,960 ha |
| 2017 | 611 ha | 1,140 ha | 1,750 ha |
| 2018 | 733 ha | 1,060 ha | 1,800 ha |
| 2019 | 551 ha | 948 ha | 1,500 ha |
| 2020 | 639 ha | 861 ha | 1,500 ha |
| 2021 | 469 ha | 800 ha | 1,270 ha |
| 2022 | 432 ha | 902 ha | 1,330 ha |
| 2023 | 574 ha | 724 ha | 1,300 ha |
| 2024 | 495 ha | 572 ha | 1,070 ha |
| 2025 | 446 ha | 647 ha | 1,090 ha |
Forest loss is slowing down: about 1,210 hectares a year in 2021–2025, down from 1,700 hectares a year in 2016–2020. The worst year was 2016, when about 1,960 hectares of forest were lost.
What is causing deforestation in Gyeonggi-do?
- Loggingcan grow back50% · 16,000 ha
- Towns and roadscleared for good44% · 13,800 ha
- Farms, pasture and plantationscleared for good2.9% · 911 ha
Also: mining and energy, wildfires, storms, floods and other natural causes, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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