City report · Anhui, China
Chizhou Air quality today
Air quality in Chizhou currently reads AQI 77 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 77
Moderate
- PM2.5, fine particles (µg/m³)
- 23.0
- tree cover
- 22.3%
- trees in this area
- 67.6K
- more trees needed
- 23.3K
Measured across a 2 km radius around Guichi District, Chizhou, Anhui, China (12.57 km²), from a satellite image of Sep 7, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Chizhou · AQI 77 (Moderate)
Chizhou's tree count comes to 67,606 trees across 12.13 km² of land, 8 points below the 30% tree-cover level considered healthy for this area, so roughly 23,344 more trees would close the gap.
Air quality detail
Air quality in Chizhou today: AQI 77, 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 · Chizhou College, Chizhou (池州池州学院), 800 m away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
23.0
PM10
40.0
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Anhui Environmental Protection Agency (安徽省生态环境厅)
- 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 Chizhou's daily AQI at 89 on average, from 66 on Nov 9 to an hourly peak of 156 on Nov 6.
Where Chizhou stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Chizhou: Below target
22.3% tree cover against a 30% healthy-neighborhood target, across 12.13 km² of land.
Trees in this area
67,606
Target trees
90,950
More trees needed
23,344
CO₂ if planted / yr
513.6 t
Deforestation · 2001–2025
How much forest has Chizhou lost?
Since 2001, the area within 10 km of Chizhou has lost about 672 hectares of forest (about 940 football pitches): 20% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 321 hectares (48%) 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 southwest of the city center.
- Forest lost since 2001
- 672 haabout 940 football pitches
- Share of its forest
- 20%of what there was in 2000
- Cleared for good
- 321 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 122 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 | 1 ha | under 1 ha | 2 ha |
| 2002 | 1 ha | under 1 ha | 1 ha |
| 2003 | 4 ha | under 1 ha | 4 ha |
| 2004 | 5 ha | 2 ha | 6 ha |
| 2005 | 7 ha | 2 ha | 9 ha |
| 2006 | 20 ha | 17 ha | 37 ha |
| 2007 | 47 ha | 7 ha | 54 ha |
| 2008 | 23 ha | 20 ha | 43 ha |
| 2009 | 12 ha | 21 ha | 33 ha |
| 2010 | 59 ha | 63 ha | 122 ha |
| 2011 | 7 ha | 10 ha | 17 ha |
| 2012 | 13 ha | 22 ha | 34 ha |
| 2013 | 5 ha | 3 ha | 8 ha |
| 2014 | 7 ha | 6 ha | 13 ha |
| 2015 | 7 ha | 18 ha | 25 ha |
| 2016 | 5 ha | 21 ha | 26 ha |
| 2017 | 17 ha | 16 ha | 34 ha |
| 2018 | 4 ha | 11 ha | 15 ha |
| 2019 | 14 ha | 11 ha | 24 ha |
| 2020 | 20 ha | 12 ha | 32 ha |
| 2021 | 9 ha | 11 ha | 19 ha |
| 2022 | 10 ha | 45 ha | 55 ha |
| 2023 | 14 ha | 11 ha | 25 ha |
| 2024 | 6 ha | 7 ha | 13 ha |
| 2025 | 4 ha | 17 ha | 21 ha |
What is causing deforestation around Chizhou?
- Loggingcan grow back51% · 346 ha
- Towns and roadscleared for good47% · 314 ha
Also: mining and energy, farms, pasture and plantations, 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
- 7,540 ha
- Forest in 2020
- 7,220 ha
- Overall change
- −323 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Chizhou shrank from about 7,540 hectares to 7,220 hectares, a net loss of about 323 hectares (−4.3%). New forest grew on about 425 hectares, but 748 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 Chizhou
What is the air quality (AQI) in Chizhou right now?
The latest reading for Chizhou shows an AQI of 77 (Moderate), measured Nov 11, 23:00 local time by the Chizhou College, Chizhou (池州池州学院) ground monitoring station, 800 m away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Chizhou today?
At AQI 77 (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 Chizhou been like this week?
Over the last 7 days, the CAMS air-quality model put Chizhou's daily AQI at 89 on average, from 66 on Nov 9 to an hourly peak of 156 on Nov 6. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Chizhou lost since 2001?
Since 2001, the area within 10 km of Chizhou has lost about 672 hectares of forest (about 940 football pitches): 20% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 321 hectares (48%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Chizhou shrank from about 7,540 hectares to 7,220 hectares, a net loss of about 323 hectares (−4.3%). New forest grew on about 425 hectares, but 748 hectares were lost.
What is the tree count in Chizhou?
Chizhou has an estimated 67,606 trees across the 12.13 km² of land measured — 22.3% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Chizhou need?
Chizhou needs roughly 23,344 more trees to close a 8-point shortfall against its 30% tree-cover target — about 513.6 t of extra CO₂ absorbed per year once grown.
How are Chizhou's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Guichi 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 Guichi District; the tree count is an estimate derived from that cover.
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