City report · Anhui, China
Huainan Air quality today
Air quality in Huainan 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
- 41.6%
- trees in this area
- 131K
- more trees needed
- 0
Measured across a 2 km radius around Tianjiaan, Huainan, Anhui, China (12.57 km²), from a satellite image of Aug 31, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Huainan · AQI 134 (Unhealthy for sensitive groups)
Huainan's tree count comes to 130,560 trees across 12.56 km² of land, already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Huainan today: AQI 134, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Xiejiaji District Government, Huainan (淮南谢家集区政府), 13.5 km away · median of 3 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
48.9
PM10
79.2
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Anhui Environmental Protection Agency (安徽省生态环境厅)
- 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 Huainan's daily AQI at 119 on average, from 71 on Nov 9 to an hourly peak of 223 on Nov 6.
Where Huainan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Huainan: Healthy tree cover
41.6% tree cover against a 35% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
130,560
Target trees
130,560
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Huainan lost?
Since 2001, the area within 10 km of Huainan has lost about 23 hectares of forest (about 32 football pitches): 7.8% of the forest it had in 2000. Most of it (68%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 23 haabout 32 football pitches
- Share of its forest
- 7.8%of what there was in 2000
- Cleared for good
- 15 hadeforestation: turned into farms, mines or towns
The worst year was 2021, when about 5 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 | 4 ha | under 1 ha | 4 ha |
| 2002 | under 1 ha | under 1 ha | 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | 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 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | 1 ha | 1 ha |
| 2011 | 2 ha | under 1 ha | 2 ha |
| 2012 | 1 ha | under 1 ha | 2 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 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | 2 ha | under 1 ha | 2 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 | 4 ha | 1 ha | 5 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 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Huainan?
- Towns and roadscleared for good48% · 11 ha
- Farms, pasture and plantationscleared for good19% · 4 ha
- Loggingcan grow back13% · 3 ha
Also: storms, floods and other natural causes, 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
- 1,100 ha
- Forest in 2020
- 1,550 ha
- Overall change
- +458 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Huainan grew from about 1,100 hectares to 1,550 hectares, a net gain of about 458 hectares (+42%). New forest grew on about 481 hectares, while 24 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 Huainan
What is the air quality (AQI) in Huainan right now?
The latest reading for Huainan shows an AQI of 134 (Unhealthy for sensitive groups), measured Nov 11, 22:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Xiejiaji District Government, Huainan (淮南谢家集区政府), 13.5 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Huainan 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 Huainan been like this week?
Over the last 7 days, the CAMS air-quality model put Huainan's daily AQI at 119 on average, from 71 on Nov 9 to an hourly peak of 223 on Nov 6. On 5 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Huainan lost since 2001?
Since 2001, the area within 10 km of Huainan has lost about 23 hectares of forest (about 32 football pitches): 7.8% of the forest it had in 2000. Most of it (68%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Huainan grew from about 1,100 hectares to 1,550 hectares, a net gain of about 458 hectares (+42%). New forest grew on about 481 hectares, while 24 hectares were lost.
What is the tree count in Huainan?
Huainan has an estimated 130,560 trees across the 12.56 km² of land measured — 41.6% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Huainan need?
Huainan has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Huainan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Tianjiaan, 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 Tianjiaan; the tree count is an estimate derived from that cover.
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