City report · Yunnan, China
Pu'er Air quality today
Air quality in Pu'er currently reads AQI 37 (Good): Air quality is satisfactory for everyone.
AQI 37
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 6.6
- tree cover
- 22.0%
- trees in this area
- 65.5K
- more trees needed
- 23.8K
Measured across a 2 km radius around Simao District, Puer, Yunnan, China (12.57 km²), from a satellite image of Sep 22, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Pu'er · AQI 37 (Good)
Pu'er's tree count comes to 65,452 trees across 11.9 km² of land, 8 points below the 30% tree-cover level considered healthy for this area, so roughly 23,801 more trees would close the gap.
Air quality detail
Air quality in Pu'er today: AQI 37, Good
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 · City EPA, Pu'er (普洱市环保局), 2.9 km away · median of 2 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.6
PM10
23.8
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Yunnan Environmental Protection Agency (云南省环境保护厅)
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Pu'er's daily AQI at 26 on average, from 13 on Nov 10 to an hourly peak of 61 on Nov 5.
Where Pu'er stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Pu'er: Below target
22.0% tree cover against a 30% healthy-neighborhood target, across 11.9 km² of land.
Trees in this area
65,452
Target trees
89,253
More trees needed
23,801
CO₂ if planted / yr
523.6 t
Deforestation · 2001–2025
How much forest has Pu'er lost?
Since 2001, the area within 10 km of Pu'er has lost about 2,880 hectares of forest (about 4,000 football pitches): 15% of the forest it had in 2000. Most of it (67%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from February 2017 of a 5 × 5 km area about 7 km west of the city center.
- Forest lost since 2001
- 2,880 haabout 4,000 football pitches
- Share of its forest
- 15%of what there was in 2000
- Cleared for good
- 1,930 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 106 hectares a year in 2021–2025, up from 69 hectares a year in 2016–2020. The worst year was 2007, when about 368 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 | 3 ha | 18 ha |
| 2002 | 33 ha | 20 ha | 53 ha |
| 2003 | 54 ha | 21 ha | 76 ha |
| 2004 | 54 ha | 103 ha | 157 ha |
| 2005 | 28 ha | 20 ha | 48 ha |
| 2006 | 155 ha | 79 ha | 234 ha |
| 2007 | 322 ha | 46 ha | 368 ha |
| 2008 | 127 ha | 35 ha | 162 ha |
| 2009 | 118 ha | 49 ha | 167 ha |
| 2010 | 177 ha | 39 ha | 216 ha |
| 2011 | 24 ha | 10 ha | 34 ha |
| 2012 | 291 ha | 31 ha | 322 ha |
| 2013 | 47 ha | 11 ha | 58 ha |
| 2014 | 41 ha | 12 ha | 53 ha |
| 2015 | 31 ha | 11 ha | 41 ha |
| 2016 | 55 ha | 18 ha | 73 ha |
| 2017 | 79 ha | 16 ha | 96 ha |
| 2018 | 66 ha | 4 ha | 70 ha |
| 2019 | 43 ha | 14 ha | 57 ha |
| 2020 | 31 ha | 16 ha | 47 ha |
| 2021 | 38 ha | 128 ha | 166 ha |
| 2022 | 43 ha | 173 ha | 216 ha |
| 2023 | 15 ha | 14 ha | 29 ha |
| 2024 | 28 ha | 54 ha | 82 ha |
| 2025 | 19 ha | 19 ha | 38 ha |
What is causing deforestation around Pu'er?
- Farms, pasture and plantationscleared for good48% · 1,380 ha
- Loggingcan grow back32% · 913 ha
- Towns and roadscleared for good15% · 444 ha
Also: mining and energy, 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
- 23,500 ha
- Forest in 2020
- 22,400 ha
- Overall change
- −1,120 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Pu'er shrank from about 23,500 hectares to 22,400 hectares, a net loss of about 1,120 hectares (−4.8%). New forest grew on about 390 hectares, but 1,510 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 Pu'er
What is the air quality (AQI) in Pu'er right now?
The latest reading for Pu'er shows an AQI of 37 (Good), measured Nov 11, 23:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is City EPA, Pu'er (普洱市环保局), 2.9 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Pu'er today?
At AQI 37 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Pu'er been like this week?
Over the last 7 days, the CAMS air-quality model put Pu'er's daily AQI at 26 on average, from 13 on Nov 10 to an hourly peak of 61 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Pu'er lost since 2001?
Since 2001, the area within 10 km of Pu'er has lost about 2,880 hectares of forest (about 4,000 football pitches): 15% of the forest it had in 2000. Most of it (67%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is speeding up: about 106 hectares a year in 2021–2025, up from 69 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Pu'er shrank from about 23,500 hectares to 22,400 hectares, a net loss of about 1,120 hectares (−4.8%). New forest grew on about 390 hectares, but 1,510 hectares were lost.
What is the tree count in Pu'er?
Pu'er has an estimated 65,452 trees across the 11.9 km² of land measured — 22.0% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Pu'er need?
Pu'er needs roughly 23,801 more trees to close a 8-point shortfall against its 30% tree-cover target — about 523.6 t of extra CO₂ absorbed per year once grown.
How are Pu'er's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Simao 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 Simao District; the tree count is an estimate derived from that cover.
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