City report · Jilin, China
Jiaohe Air quality today
Air quality in Jiaohe currently reads AQI 220 (Very unhealthy): Health alert — everyone should avoid long outdoor exertion.
Air quality right now
AQI 220
Very unhealthy
- PM2.5, fine particles (µg/m³)
- 155.3
- tree cover
- 7.5%
- trees in this area
- 22.7K
- more trees needed
- 114K
Measured across a 2 km radius around Jiaohe, 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.
Jiaohe · AQI 220 (Very unhealthy)
Jiaohe's tree count comes to 22,714 trees across 12.12 km² of land, 38 points below the 45% tree-cover level considered healthy for this area, so roughly 113,569 more trees would close the gap.
Air quality detail
Air quality in Jiaohe today: AQI 220, Very unhealthy
Main pollutant: PM2.5 · Observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 225 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 225 km, e.g. Jilin City and Mudanjiang
Health signal
Health alert — everyone should avoid long outdoor exertion.
PM2.5
155.3
PM10
73.3
NO₂
37.7
O₃
4.0
SO₂
18.5
CO
1299.0
- Outdoor exercise
- Everyone should avoid long or hard exercise outdoors; sensitive groups, all outdoor exertion
- Windows
- Keep them closed
- Mask
- Wear an N95 if you go out
- Air purifier
- Run one on high
Over the last 7 days, the CAMS air-quality model put Jiaohe's daily AQI at 76 on average, from 50 on Nov 7 to an hourly peak of 149 on Nov 5.
Where Jiaohe stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Jiaohe: Critically low
7.5% tree cover against a 45% healthy-neighborhood target, across 12.12 km² of land.
Trees in this area
22,714
Target trees
136,283
More trees needed
113,569
CO₂ if planted / yr
2,499 t
Deforestation · 2001–2025
How much forest has Jiaohe lost?
Since 2001, the area within 10 km of Jiaohe has lost about 120 hectares of forest (about 170 football pitches): 7.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 36 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 120 haabout 170 football pitches
- Share of its forest
- 7.5%of what there was in 2000
- Cleared for good
- 36 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 22 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 | 3 ha | 4 ha |
| 2002 | under 1 ha | under 1 ha | 1 ha |
| 2003 | under 1 ha | 2 ha | 2 ha |
| 2004 | 2 ha | 6 ha | 8 ha |
| 2005 | 10 ha | 4 ha | 14 ha |
| 2006 | under 1 ha | 3 ha | 4 ha |
| 2007 | 6 ha | 16 ha | 22 ha |
| 2008 | 2 ha | 13 ha | 15 ha |
| 2009 | 1 ha | 5 ha | 7 ha |
| 2010 | 8 ha | under 1 ha | 8 ha |
| 2011 | 5 ha | 7 ha | 12 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | 1 ha | 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | 2 ha | 2 ha |
| 2021 | under 1 ha | 2 ha | 2 ha |
| 2022 | under 1 ha | 2 ha | 2 ha |
| 2023 | under 1 ha | 8 ha | 8 ha |
| 2024 | under 1 ha | 4 ha | 5 ha |
| 2025 | under 1 ha | 2 ha | 2 ha |
What is causing deforestation around Jiaohe?
- Loggingcan grow back65% · 78 ha
- Farms, pasture and plantationscleared for good29% · 34 ha
- Towns and roadscleared for good1.9% · 2 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
- 2,310 ha
- Forest in 2020
- 2,910 ha
- Overall change
- +592 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Jiaohe grew from about 2,310 hectares to 2,910 hectares, a net gain of about 592 hectares (+26%). New forest grew on about 694 hectares, while 102 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 Jiaohe
What is the air quality (AQI) in Jiaohe right now?
The latest reading for Jiaohe shows an AQI of 220 (Very unhealthy), observed Nov 10, 22:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 225 km, US EPA index. The main pollutant is PM2.5. Health alert — everyone should avoid long outdoor exertion.
Is it safe to exercise outside in Jiaohe today?
At AQI 220 (Very unhealthy): everyone should avoid long or hard exercise outdoors; sensitive groups, all outdoor exertion. Windows: keep them closed. Masks: wear an N95 if you go out. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Jiaohe been like this week?
Over the last 7 days, the CAMS air-quality model put Jiaohe's daily AQI at 76 on average, from 50 on Nov 7 to an hourly peak of 149 on Nov 5. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Jiaohe lost since 2001?
Since 2001, the area within 10 km of Jiaohe has lost about 120 hectares of forest (about 170 football pitches): 7.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 36 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Jiaohe grew from about 2,310 hectares to 2,910 hectares, a net gain of about 592 hectares (+26%). New forest grew on about 694 hectares, while 102 hectares were lost.
What is the tree count in Jiaohe?
Jiaohe has an estimated 22,714 trees across the 12.12 km² of land measured — 7.5% tree cover, 38 percentage points short of the 45% tree-cover target set for this area.
How many more trees does Jiaohe need?
Jiaohe needs roughly 113,569 more trees to close a 38-point shortfall against its 45% tree-cover target — about 2,499 t of extra CO₂ absorbed per year once grown.
How are Jiaohe'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 Jiaohe; the tree count is an estimate derived from that cover.
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