City report · Hunan, China
Huaihua Air quality today
Air quality in Huaihua currently reads AQI 87 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 87
Moderate
- PM2.5, fine particles (µg/m³)
- 28.3
- tree cover
- 38.6%
- trees in this area
- 121K
- more trees needed
- 0
Measured across a 2 km radius around Hecheng District, Huaihua, Hunan, China (12.57 km²), from a satellite image of Sep 6, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Huaihua · AQI 87 (Moderate)
Huaihua's tree count comes to 121,023 trees across 12.54 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Huaihua today: AQI 87, 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 · jiāncè lóu, Huaihua (怀化监测楼), 900 m away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
28.3
PM10
48.6
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 Huaihua's daily AQI at 68 on average, from 48 on Nov 6 to an hourly peak of 141 on Nov 11.
Where Huaihua stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Huaihua: Healthy tree cover
38.6% tree cover against a 30% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
121,023
Target trees
121,023
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Huaihua lost?
Since 2001, the area within 10 km of Huaihua has lost about 1,980 hectares of forest (about 2,800 football pitches): 18% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 607 hectares (31%) 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 north of the city center.
- Forest lost since 2001
- 1,980 haabout 2,800 football pitches
- Share of its forest
- 18%of what there was in 2000
- Cleared for good
- 607 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 79 hectares a year in 2021–2025, up from 36 hectares a year in 2016–2020. The worst year was 2006, when about 236 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 | 15 ha | 39 ha | 53 ha |
| 2002 | 9 ha | 29 ha | 37 ha |
| 2003 | 8 ha | 14 ha | 22 ha |
| 2004 | 41 ha | 154 ha | 195 ha |
| 2005 | 22 ha | 104 ha | 126 ha |
| 2006 | 41 ha | 195 ha | 236 ha |
| 2007 | 32 ha | 150 ha | 182 ha |
| 2008 | 28 ha | 63 ha | 91 ha |
| 2009 | 11 ha | 39 ha | 50 ha |
| 2010 | 99 ha | 95 ha | 194 ha |
| 2011 | 33 ha | 35 ha | 68 ha |
| 2012 | 31 ha | 33 ha | 63 ha |
| 2013 | 44 ha | 12 ha | 56 ha |
| 2014 | 7 ha | 10 ha | 18 ha |
| 2015 | 8 ha | 9 ha | 17 ha |
| 2016 | 5 ha | 6 ha | 11 ha |
| 2017 | 26 ha | 26 ha | 52 ha |
| 2018 | 62 ha | 11 ha | 73 ha |
| 2019 | 18 ha | 14 ha | 32 ha |
| 2020 | 9 ha | 4 ha | 13 ha |
| 2021 | 14 ha | 8 ha | 22 ha |
| 2022 | 10 ha | 52 ha | 62 ha |
| 2023 | 15 ha | 98 ha | 113 ha |
| 2024 | 11 ha | 95 ha | 106 ha |
| 2025 | 9 ha | 83 ha | 91 ha |
What is causing deforestation around Huaihua?
- Loggingcan grow back69% · 1,370 ha
- Towns and roadscleared for good24% · 467 ha
- Farms, pasture and plantationscleared for good4.9% · 97 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
- 18,800 ha
- Forest in 2020
- 18,200 ha
- Overall change
- −569 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Huaihua shrank from about 18,800 hectares to 18,200 hectares, a net loss of about 569 hectares (−3%). New forest grew on about 419 hectares, but 988 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 Huaihua
What is the air quality (AQI) in Huaihua right now?
The latest reading for Huaihua shows an AQI of 87 (Moderate), measured Nov 11, 23:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is jiāncè lóu, Huaihua (怀化监测楼), 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 Huaihua today?
At AQI 87 (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 Huaihua been like this week?
Over the last 7 days, the CAMS air-quality model put Huaihua's daily AQI at 68 on average, from 48 on Nov 6 to an hourly peak of 141 on Nov 11. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Huaihua lost since 2001?
Since 2001, the area within 10 km of Huaihua has lost about 1,980 hectares of forest (about 2,800 football pitches): 18% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 607 hectares (31%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is speeding up: about 79 hectares a year in 2021–2025, up from 36 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Huaihua shrank from about 18,800 hectares to 18,200 hectares, a net loss of about 569 hectares (−3%). New forest grew on about 419 hectares, but 988 hectares were lost.
What is the tree count in Huaihua?
Huaihua has an estimated 121,023 trees across the 12.54 km² of land measured — 38.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Huaihua need?
Huaihua has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Huaihua's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Hecheng 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 Hecheng District; the tree count is an estimate derived from that cover.
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