City report · Hunan, China
Changde Air quality today
Air quality in Changde currently reads AQI 95 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 95
Moderate
- PM2.5, fine particles (µg/m³)
- 32.5
- tree cover
- 25.7%
- trees in this area
- 68.6K
- more trees needed
- 11.5K
Measured across a 2 km radius around Wuling District, Changde, Hunan, China (12.57 km²), from a satellite image of Sep 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Changde · AQI 95 (Moderate)
Changde's tree count comes to 68,628 trees across 10.68 km² of land, 4 points below the 30% tree-cover level considered healthy for this area, so roughly 11,483 more trees would close the gap.
Air quality detail
Air quality in Changde today: AQI 95, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Changde (常德), 0 m away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
32.5
PM10
41.5
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Hunan Environmental Protection Agency (湖南省环境保护厅), 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 Changde's daily AQI at 104 on average, from 75 on Nov 9 to an hourly peak of 150 on Nov 10.
Where Changde stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Changde: Below target
25.7% tree cover against a 30% healthy-neighborhood target, across 10.68 km² of land.
Trees in this area
68,628
Target trees
80,111
More trees needed
11,483
CO₂ if planted / yr
252.6 t
Deforestation · 2001–2025
How much forest has Changde lost?
Since 2001, the area within 10 km of Changde has lost about 25 hectares of forest (about 35 football pitches): 9% of the forest it had in 2000. Most of it (86%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from October 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 25 haabout 35 football pitches
- Share of its forest
- 9%of what there was in 2000
- Cleared for good
- 21 hadeforestation: turned into farms, mines or towns
The worst year was 2009, when about 9 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 | 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 9 ha | under 1 ha | 9 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | 3 ha | under 1 ha | 4 ha |
| 2012 | 3 ha | under 1 ha | 3 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 | under 1 ha | under 1 ha |
| 2016 | 1 ha | under 1 ha | 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 | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | 2 ha | under 1 ha | 2 ha |
What is causing deforestation around Changde?
- Towns and roadscleared for good84% · 21 ha
- Loggingcan grow back2.8% · under 1 ha
- Farms, pasture and plantationscleared for good1.6% · under 1 ha
Also: 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.
Forest gained and lost, 2000–2020
- Forest in 2000
- 2,280 ha
- Forest in 2020
- 2,750 ha
- Overall change
- +474 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Changde grew from about 2,280 hectares to 2,750 hectares, a net gain of about 474 hectares (+21%). New forest grew on about 538 hectares, while 64 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 Changde
What is the air quality (AQI) in Changde right now?
The latest reading for Changde shows an AQI of 95 (Moderate), measured Nov 11, 23:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Changde (常德), 0 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Changde today?
At AQI 95 (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 Changde been like this week?
Over the last 7 days, the CAMS air-quality model put Changde's daily AQI at 104 on average, from 75 on Nov 9 to an hourly peak of 150 on Nov 10. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Changde lost since 2001?
Since 2001, the area within 10 km of Changde has lost about 25 hectares of forest (about 35 football pitches): 9% of the forest it had in 2000. Most of it (86%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Changde grew from about 2,280 hectares to 2,750 hectares, a net gain of about 474 hectares (+21%). New forest grew on about 538 hectares, while 64 hectares were lost.
What is the tree count in Changde?
Changde has an estimated 68,628 trees across the 10.68 km² of land measured — 25.7% tree cover, 4 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Changde need?
Changde needs roughly 11,483 more trees to close a 4-point shortfall against its 30% tree-cover target — about 252.6 t of extra CO₂ absorbed per year once grown.
How are Changde's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Wuling 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 Wuling District; the tree count is an estimate derived from that cover.
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