City report · Yunnan, China
Haikou, Yunnan Air quality today
Air quality in Haikou, Yunnan currently reads AQI 56 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 56
Moderate
- PM2.5, fine particles (µg/m³)
- 12.0
- tree cover
- 29.5%
- trees in this area
- 92.7K
- more trees needed
- 1.6K
Measured across a 2 km radius around Xishan, Kunming, Yunnan, China (12.57 km²), from a satellite image of Sep 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Haikou, Yunnan · AQI 56 (Moderate)
Haikou, Yunnan's tree count comes to 92,677 trees across 12.57 km², 1 points below the 30% tree-cover level considered healthy for this area, so roughly 1,571 more trees would close the gap.
Air quality detail
Air quality in Haikou, Yunnan today: AQI 56, Moderate
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 · 晋宁区生态环境分局, Kunming (昆明晋宁区生态环境分局), 12 km away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
12.0
PM10
16.2
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project
- 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 Haikou, Yunnan's daily AQI at 34 on average, from 15 on Nov 9 to an hourly peak of 76 on Nov 11.
Where Haikou, Yunnan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Haikou, Yunnan: Below target
29.5% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
92,677
Target trees
94,248
More trees needed
1,571
CO₂ if planted / yr
34.6 t
Deforestation · 2001–2025
How much forest has Haikou, Yunnan lost?
Since 2001, the area within 10 km of Haikou, Yunnan has lost about 1,170 hectares of forest (about 1,600 football pitches): 16% of the forest it had in 2000. Most of it (57%) was deforestation, forest cleared for good, mainly for mining and energy.
2017: satellite photo from March 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 1,170 haabout 1,600 football pitches
- Share of its forest
- 16%of what there was in 2000
- Cleared for good
- 666 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 63 hectares a year in 2021–2025, up from 31 hectares a year in 2016–2020. The worst year was 2024, when about 238 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 2 ha | 3 ha | 4 ha |
| 2002 | 5 ha | under 1 ha | 5 ha |
| 2003 | 1 ha | under 1 ha | 1 ha |
| 2004 | 15 ha | under 1 ha | 16 ha |
| 2005 | 4 ha | under 1 ha | 4 ha |
| 2006 | 24 ha | under 1 ha | 25 ha |
| 2007 | 28 ha | under 1 ha | 28 ha |
| 2008 | 54 ha | 1 ha | 55 ha |
| 2009 | 115 ha | 6 ha | 121 ha |
| 2010 | 83 ha | 45 ha | 128 ha |
| 2011 | 84 ha | 40 ha | 124 ha |
| 2012 | 34 ha | 1 ha | 36 ha |
| 2013 | 23 ha | 7 ha | 30 ha |
| 2014 | 38 ha | 39 ha | 77 ha |
| 2015 | 22 ha | 18 ha | 40 ha |
| 2016 | 35 ha | 35 ha | 70 ha |
| 2017 | 19 ha | 26 ha | 44 ha |
| 2018 | 10 ha | under 1 ha | 11 ha |
| 2019 | 18 ha | 2 ha | 20 ha |
| 2020 | 9 ha | 2 ha | 11 ha |
| 2021 | 9 ha | 2 ha | 11 ha |
| 2022 | 15 ha | 3 ha | 19 ha |
| 2023 | 15 ha | 5 ha | 19 ha |
| 2024 | 6 ha | 233 ha | 238 ha |
| 2025 | under 1 ha | 30 ha | 30 ha |
What is causing deforestation around Haikou, Yunnan?
- Mining and energycleared for good56% · 649 ha
- Wildfirescan grow back23% · 263 ha
- Loggingcan grow back20% · 233 ha
Also: towns and roads, farms, pasture and plantations, 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
- 8,920 ha
- Forest in 2020
- 9,390 ha
- Overall change
- +474 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Haikou, Yunnan grew from about 8,920 hectares to 9,390 hectares, a net gain of about 474 hectares (+5.3%). New forest grew on about 1,620 hectares, while 1,150 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 Haikou, Yunnan
What is the air quality (AQI) in Haikou, Yunnan right now?
The latest reading for Haikou, Yunnan shows an AQI of 56 (Moderate), measured Nov 11, 22:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is 晋宁区生态环境分局, Kunming (昆明晋宁区生态环境分局), 12 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Haikou, Yunnan today?
At AQI 56 (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 Haikou, Yunnan been like this week?
Over the last 7 days, the CAMS air-quality model put Haikou, Yunnan's daily AQI at 34 on average, from 15 on Nov 9 to an hourly peak of 76 on Nov 11. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Haikou, Yunnan lost since 2001?
Since 2001, the area within 10 km of Haikou, Yunnan has lost about 1,170 hectares of forest (about 1,600 football pitches): 16% of the forest it had in 2000. Most of it (57%) was deforestation, forest cleared for good, mainly for mining and energy. Forest loss is speeding up: about 63 hectares a year in 2021–2025, up from 31 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Haikou, Yunnan grew from about 8,920 hectares to 9,390 hectares, a net gain of about 474 hectares (+5.3%). New forest grew on about 1,620 hectares, while 1,150 hectares were lost.
What is the tree count in Haikou, Yunnan?
Haikou, Yunnan has an estimated 92,677 trees across the 12.57 km² measured — 29.5% tree cover, 1 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Haikou, Yunnan need?
Haikou, Yunnan needs roughly 1,571 more trees to close a 1-point shortfall against its 30% tree-cover target — about 34.6 t of extra CO₂ absorbed per year once grown.
How are Haikou, Yunnan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Xishan, 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 Xishan; the tree count is an estimate derived from that cover.
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