City report · Hunan, China
Yongzhou Air quality today
Air quality in Yongzhou currently reads AQI 134 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 134
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 48.9
- tree cover
- 28.5%
- trees in this area
- 75.3K
- more trees needed
- 17.2K
Measured across a 2 km radius around Lengshuitan District, Yongzhou, Hunan, China (12.57 km²), from a satellite image of Sep 8, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Yongzhou · AQI 134 (Unhealthy for sensitive groups)
Yongzhou's tree count comes to 75,299 trees across 10.57 km² of land, 7 points below the 35% tree-cover level considered healthy for this area, so roughly 17,174 more trees would close the gap.
Air quality detail
Air quality in Yongzhou today: AQI 134, Unhealthy for sensitive groups
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 · Lengshuitan District Environmental Protection Bureau, Yongzhou (永州冷水滩区环保局), 3.4 km away
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
48.9
PM10
71.2
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
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Yongzhou's daily AQI at 68 on average, from 57 on Nov 7 to an hourly peak of 103 on Nov 11.
Where Yongzhou stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Yongzhou: Below target
28.5% tree cover against a 35% healthy-neighborhood target, across 10.57 km² of land.
Trees in this area
75,299
Target trees
92,473
More trees needed
17,174
CO₂ if planted / yr
377.8 t
Deforestation · 2001–2025
How much forest has Yongzhou lost?
Since 2001, the area within 10 km of Yongzhou has lost about 910 hectares of forest (about 1,300 football pitches): 29% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 910 haabout 1,300 football pitches
- Share of its forest
- 29%of what there was in 2000
- Cleared for good
- 736 hadeforestation: turned into farms, mines or towns
The worst year was 2011, when about 159 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 | 10 ha | 12 ha | 22 ha |
| 2002 | 9 ha | 7 ha | 16 ha |
| 2003 | 15 ha | 19 ha | 34 ha |
| 2004 | 26 ha | 6 ha | 31 ha |
| 2005 | 38 ha | 12 ha | 50 ha |
| 2006 | 10 ha | under 1 ha | 10 ha |
| 2007 | 71 ha | 11 ha | 82 ha |
| 2008 | 2 ha | under 1 ha | 2 ha |
| 2009 | 97 ha | 8 ha | 105 ha |
| 2010 | 7 ha | under 1 ha | 7 ha |
| 2011 | 153 ha | 6 ha | 159 ha |
| 2012 | 74 ha | 9 ha | 83 ha |
| 2013 | 5 ha | 1 ha | 6 ha |
| 2014 | 5 ha | 7 ha | 12 ha |
| 2015 | 5 ha | under 1 ha | 5 ha |
| 2016 | 20 ha | under 1 ha | 20 ha |
| 2017 | 16 ha | 8 ha | 24 ha |
| 2018 | 22 ha | 1 ha | 23 ha |
| 2019 | 4 ha | 3 ha | 7 ha |
| 2020 | 7 ha | 1 ha | 9 ha |
| 2021 | 13 ha | 3 ha | 17 ha |
| 2022 | 12 ha | 1 ha | 13 ha |
| 2023 | 11 ha | under 1 ha | 11 ha |
| 2024 | 38 ha | 19 ha | 57 ha |
| 2025 | 68 ha | 39 ha | 107 ha |
What is causing deforestation around Yongzhou?
- Towns and roadscleared for good56% · 512 ha
- Farms, pasture and plantationscleared for good22% · 198 ha
- Loggingcan grow back19% · 170 ha
Also: mining and energy, 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
- 9,180 ha
- Forest in 2020
- 8,750 ha
- Overall change
- −435 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Yongzhou shrank from about 9,180 hectares to 8,750 hectares, a net loss of about 435 hectares (−4.7%). New forest grew on about 368 hectares, but 803 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 Yongzhou
What is the air quality (AQI) in Yongzhou right now?
The latest reading for Yongzhou shows an AQI of 134 (Unhealthy for sensitive groups), measured Nov 11, 23:00 local time by the Lengshuitan District Environmental Protection Bureau, Yongzhou (永州冷水滩区环保局) ground monitoring station, 3.4 km away, via OpenAQ. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Yongzhou today?
At AQI 134 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Yongzhou been like this week?
Over the last 7 days, the CAMS air-quality model put Yongzhou's daily AQI at 68 on average, from 57 on Nov 7 to an hourly peak of 103 on Nov 11. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Yongzhou lost since 2001?
Since 2001, the area within 10 km of Yongzhou has lost about 910 hectares of forest (about 1,300 football pitches): 29% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Yongzhou shrank from about 9,180 hectares to 8,750 hectares, a net loss of about 435 hectares (−4.7%). New forest grew on about 368 hectares, but 803 hectares were lost.
What is the tree count in Yongzhou?
Yongzhou has an estimated 75,299 trees across the 10.57 km² of land measured — 28.5% tree cover, 7 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Yongzhou need?
Yongzhou needs roughly 17,174 more trees to close a 7-point shortfall against its 35% tree-cover target — about 377.8 t of extra CO₂ absorbed per year once grown.
How are Yongzhou's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Lengshuitan 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 Lengshuitan District; the tree count is an estimate derived from that cover.
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