City report · Jilin, China
Huadian Air quality today
Air quality in Huadian currently reads AQI 154 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 154
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 56.4
- tree cover
- 8.6%
- trees in this area
- 25.6K
- more trees needed
- 93.6K
Measured across a 2 km radius around Huadian, Jilin, Jilin City, 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.
Huadian · AQI 154 (Unhealthy)
Huadian's tree count comes to 25,640 trees across 11.93 km² of land, 31 points below the 40% tree-cover level considered healthy for this area, so roughly 93,615 more trees would close the gap.
Air quality detail
Air quality in Huadian today: AQI 154, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 04:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 165 km, e.g. Jilin City and Baishan
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
56.4
PM10
46.0
NO₂
15.1
O₃
24.0
SO₂
7.5
CO
555.0
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Huadian's daily AQI at 69 on average, from 51 on Nov 6 to an hourly peak of 158 on Nov 5.
Where Huadian stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Huadian: Critically low
8.6% tree cover against a 40% healthy-neighborhood target, across 11.93 km² of land.
Trees in this area
25,640
Target trees
119,255
More trees needed
93,615
CO₂ if planted / yr
2,060 t
Deforestation · 2001–2025
How much forest has Huadian lost?
Since 2001, the area within 10 km of Huadian has lost about 244 hectares of forest (about 340 football pitches): 8.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 57 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 6 km north of the city center.
- Forest lost since 2001
- 244 haabout 340 football pitches
- Share of its forest
- 8.5%of what there was in 2000
- Cleared for good
- 57 hadeforestation: turned into farms, mines or towns
The worst year was 2004, when about 44 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 | 6 ha | 6 ha |
| 2003 | 1 ha | 5 ha | 6 ha |
| 2004 | 3 ha | 42 ha | 44 ha |
| 2005 | 2 ha | 13 ha | 15 ha |
| 2006 | under 1 ha | 3 ha | 3 ha |
| 2007 | 8 ha | 25 ha | 32 ha |
| 2008 | 1 ha | 4 ha | 5 ha |
| 2009 | under 1 ha | 2 ha | 2 ha |
| 2010 | 3 ha | under 1 ha | 3 ha |
| 2011 | 8 ha | 20 ha | 28 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | 4 ha | 4 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | 2 ha | 2 ha |
| 2017 | under 1 ha | 2 ha | 2 ha |
| 2018 | under 1 ha | 11 ha | 11 ha |
| 2019 | under 1 ha | under 1 ha | 1 ha |
| 2020 | 9 ha | 2 ha | 12 ha |
| 2021 | 9 ha | 4 ha | 13 ha |
| 2022 | 5 ha | 7 ha | 13 ha |
| 2023 | 5 ha | 11 ha | 16 ha |
| 2024 | 1 ha | 7 ha | 9 ha |
| 2025 | under 1 ha | 17 ha | 17 ha |
What is causing deforestation around Huadian?
- Loggingcan grow back73% · 178 ha
- Towns and roadscleared for good19% · 48 ha
- Farms, pasture and plantationscleared for good4% · 10 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
- 4,540 ha
- Forest in 2020
- 4,940 ha
- Overall change
- +399 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Huadian grew from about 4,540 hectares to 4,940 hectares, a net gain of about 399 hectares (+8.8%). New forest grew on about 619 hectares, while 219 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 Huadian
What is the air quality (AQI) in Huadian right now?
The latest reading for Huadian shows an AQI of 154 (Unhealthy), observed Nov 11, 04:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Huadian today?
At AQI 154 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Huadian been like this week?
Over the last 7 days, the CAMS air-quality model put Huadian's daily AQI at 69 on average, from 51 on Nov 6 to an hourly peak of 158 on Nov 5. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Huadian lost since 2001?
Since 2001, the area within 10 km of Huadian has lost about 244 hectares of forest (about 340 football pitches): 8.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 57 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Huadian grew from about 4,540 hectares to 4,940 hectares, a net gain of about 399 hectares (+8.8%). New forest grew on about 619 hectares, while 219 hectares were lost.
What is the tree count in Huadian?
Huadian has an estimated 25,640 trees across the 11.93 km² of land measured — 8.6% tree cover, 31 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Huadian need?
Huadian needs roughly 93,615 more trees to close a 31-point shortfall against its 40% tree-cover target — about 2,060 t of extra CO₂ absorbed per year once grown.
How are Huadian's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Huadian; the tree count is an estimate derived from that cover.
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