City report · Jilin, China
Tonghua Air quality today
Air quality in Tonghua currently reads AQI 83 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 83
Moderate
- PM2.5, fine particles (µg/m³)
- 26.4
- tree cover
- 30.4%
- trees in this area
- 88.2K
- more trees needed
- 0
Measured across a 2 km radius around Dongchang District, Tonghua, Jilin, China (12.57 km²), from a satellite image of Sep 21, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Tonghua · AQI 83 (Moderate)
Tonghua's tree count comes to 88,246 trees across 11.61 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Tonghua today: AQI 83, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · guāngmíng, Tonghua (通化光明), 900 m away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
26.4
PM10
31.9
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Environmental Protection Agency of Jilin Province (吉林省环境保护厅), China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台)
- 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 Tonghua's daily AQI at 68 on average, from 49 on Nov 6 to an hourly peak of 132 on Nov 5.
Where Tonghua stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Tonghua: Healthy tree cover
30.4% tree cover against a 30% healthy-neighborhood target, across 11.61 km² of land.
Trees in this area
88,246
Target trees
88,246
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Tonghua lost?
Since 2001, the area within 10 km of Tonghua has lost about 863 hectares of forest (about 1,200 football pitches): 6% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 55 hectares (6.4%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 863 haabout 1,200 football pitches
- Share of its forest
- 6%of what there was in 2000
- Cleared for good
- 55 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 74 hectares a year in 2021–2025, up from 35 hectares a year in 2016–2020. The worst year was 2024, when about 153 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 | 4 ha | 4 ha |
| 2002 | 1 ha | 5 ha | 6 ha |
| 2003 | under 1 ha | 9 ha | 9 ha |
| 2004 | 2 ha | 45 ha | 47 ha |
| 2005 | 2 ha | 17 ha | 19 ha |
| 2006 | 2 ha | 53 ha | 54 ha |
| 2007 | 4 ha | 21 ha | 25 ha |
| 2008 | 3 ha | 26 ha | 30 ha |
| 2009 | 2 ha | 15 ha | 17 ha |
| 2010 | 2 ha | 15 ha | 17 ha |
| 2011 | 1 ha | 18 ha | 19 ha |
| 2012 | 3 ha | 23 ha | 25 ha |
| 2013 | under 1 ha | 4 ha | 5 ha |
| 2014 | 7 ha | 15 ha | 22 ha |
| 2015 | under 1 ha | 21 ha | 21 ha |
| 2016 | under 1 ha | 28 ha | 29 ha |
| 2017 | 5 ha | 44 ha | 49 ha |
| 2018 | under 1 ha | 28 ha | 29 ha |
| 2019 | 3 ha | 22 ha | 25 ha |
| 2020 | 1 ha | 42 ha | 43 ha |
| 2021 | 2 ha | 85 ha | 87 ha |
| 2022 | 5 ha | 45 ha | 50 ha |
| 2023 | 2 ha | 47 ha | 49 ha |
| 2024 | 2 ha | 151 ha | 153 ha |
| 2025 | 5 ha | 25 ha | 30 ha |
What is causing deforestation around Tonghua?
- Loggingcan grow back89% · 769 ha
- Towns and roadscleared for good5.9% · 51 ha
- Wildfirescan grow back2.7% · 23 ha
Also: mining and energy, 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
- 18,400 ha
- Forest in 2020
- 18,800 ha
- Overall change
- +331 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Tonghua stayed about the same size, at about 18,800 hectares: new forest grew on about 595 hectares, and about 263 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 Tonghua
What is the air quality (AQI) in Tonghua right now?
The latest reading for Tonghua shows an AQI of 83 (Moderate), measured Nov 11, 22:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is guāngmíng, Tonghua (通化光明), 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 Tonghua today?
At AQI 83 (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 Tonghua been like this week?
Over the last 7 days, the CAMS air-quality model put Tonghua's daily AQI at 68 on average, from 49 on Nov 6 to an hourly peak of 132 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Tonghua lost since 2001?
Since 2001, the area within 10 km of Tonghua has lost about 863 hectares of forest (about 1,200 football pitches): 6% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 55 hectares (6.4%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is speeding up: about 74 hectares a year in 2021–2025, up from 35 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Tonghua stayed about the same size, at about 18,800 hectares: new forest grew on about 595 hectares, and about 263 hectares were lost.
What is the tree count in Tonghua?
Tonghua has an estimated 88,246 trees across the 11.61 km² of land measured — 30.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Tonghua need?
Tonghua has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Tonghua's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Dongchang District, 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 Dongchang District; the tree count is an estimate derived from that cover.
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