City report · Fujian, China
Xiamen Air quality today
Air quality in Xiamen currently reads AQI 67 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 67
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 17.8
- tree cover
- 33.8%
- trees in this area
- 80.7K
- more trees needed
- 0
Measured across a 2 km radius around Siming District, Xiamen, Fujian, China (12.57 km²), from a satellite image of Sep 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Xiamen · AQI 67 (Moderate)
Xiamen's tree count comes to 80,701 trees across 9.55 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Xiamen today: AQI 67, Moderate
Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Xiamen (厦门), 800 m away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
17.8
PM10
38.9
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台), Hunan Environmental Protection Agency (湖南省环境保护厅), Department of Ecology and Environment of Fujian Province (福建省生态环境厅)
- 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 Xiamen's daily AQI at 70 on average, from 52 on Nov 10 to an hourly peak of 151 on Nov 5.
Where Xiamen stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Xiamen: Healthy tree cover
33.8% tree cover against a 30% healthy-neighborhood target, across 9.55 km² of land.
Trees in this area
80,701
Target trees
80,701
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Xiamen lost?
Since 2001, the area within 10 km of Xiamen has lost about 106 hectares of forest (about 150 football pitches): 8.5% of the forest it had in 2000. Most of it (66%) was deforestation, forest cleared for good, mainly for towns and roads.
2018: satellite photo from December 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 106 haabout 150 football pitches
- Share of its forest
- 8.5%of what there was in 2000
- Cleared for good
- 70 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 22 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 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | 2 ha | under 1 ha | 2 ha |
| 2006 | 9 ha | under 1 ha | 10 ha |
| 2007 | 1 ha | under 1 ha | 2 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 3 ha | 4 ha | 7 ha |
| 2010 | 7 ha | 16 ha | 22 ha |
| 2011 | 3 ha | 7 ha | 10 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 2 ha | under 1 ha | 2 ha |
| 2015 | 4 ha | 4 ha | 8 ha |
| 2016 | 7 ha | 1 ha | 9 ha |
| 2017 | 14 ha | under 1 ha | 15 ha |
| 2018 | under 1 ha | 2 ha | 3 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 11 ha | under 1 ha | 11 ha |
| 2021 | 3 ha | under 1 ha | 3 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 Xiamen?
- Towns and roadscleared for good65% · 70 ha
- Loggingcan grow back32% · 34 ha
- Unknown causescause unknown2% · 2 ha
Also: farms, pasture and plantations.
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
- 3,700 ha
- Forest in 2020
- 4,000 ha
- Overall change
- +300 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Xiamen grew from about 3,700 hectares to 4,000 hectares, a net gain of about 300 hectares (+8.1%). New forest grew on about 384 hectares, while 85 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 Xiamen
What is the air quality (AQI) in Xiamen right now?
The latest reading for Xiamen shows an AQI of 67 (Moderate), measured Nov 12, 00:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Xiamen (厦门), 800 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Xiamen today?
At AQI 67 (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 Xiamen been like this week?
Over the last 7 days, the CAMS air-quality model put Xiamen's daily AQI at 70 on average, from 52 on Nov 10 to an hourly peak of 151 on Nov 5. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Xiamen lost since 2001?
Since 2001, the area within 10 km of Xiamen has lost about 106 hectares of forest (about 150 football pitches): 8.5% of the forest it had in 2000. Most of it (66%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Xiamen grew from about 3,700 hectares to 4,000 hectares, a net gain of about 300 hectares (+8.1%). New forest grew on about 384 hectares, while 85 hectares were lost.
What is the tree count in Xiamen?
Xiamen has an estimated 80,701 trees across the 9.55 km² of land measured — 33.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Xiamen need?
Xiamen has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Xiamen's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Siming 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 Siming District; the tree count is an estimate derived from that cover.
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