City report · Gansu, China
Wuwei Air quality today
Air quality in Wuwei currently reads AQI 180 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 180
Unhealthy
- PM2.5, fine particles (µg/m³)
- 96.2
- tree cover
- 11.9%
- trees in this area
- 37.4K
- more trees needed
- 88.3K
Measured across a 2 km radius around Liangzhou District, Wuwei, Gansu, China (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Wuwei · AQI 180 (Unhealthy)
Wuwei's tree count comes to 37,385 trees across 12.57 km², 28 points below the 40% tree-cover level considered healthy for this area, so roughly 88,279 more trees would close the gap.
Air quality detail
Air quality in Wuwei today: AQI 180, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 21:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Monitoring station, Wuwei (武威监测站), 1 km away
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
96.2
PM10
141.9
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Gangsu Environmental Protection Agency (甘肃省生态环境厅), China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Wuwei's daily AQI at 73 on average, from 63 on Nov 7 to an hourly peak of 112 on Nov 5.
Where Wuwei stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Wuwei: Critically low
11.9% tree cover against a 40% healthy-neighborhood target, across 12.57 km².
Trees in this area
37,385
Target trees
125,664
More trees needed
88,279
CO₂ if planted / yr
1,942 t
Deforestation · 2001–2025
How much forest has Wuwei lost?
There was almost no forest around Wuwei in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
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. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Wuwei
What is the air quality (AQI) in Wuwei right now?
The latest reading for Wuwei shows an AQI of 180 (Unhealthy), measured Nov 11, 21:00 local time by the Monitoring station, Wuwei (武威监测站) ground monitoring station, 1 km away, via OpenAQ. The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Wuwei today?
At AQI 180 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Wuwei been like this week?
Over the last 7 days, the CAMS air-quality model put Wuwei's daily AQI at 73 on average, from 63 on Nov 7 to an hourly peak of 112 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 Wuwei lost since 2001?
There was almost no forest around Wuwei in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
What is the tree count in Wuwei?
Wuwei has an estimated 37,385 trees across the 12.57 km² measured — 11.9% tree cover, 28 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Wuwei need?
Wuwei needs roughly 88,279 more trees to close a 28-point shortfall against its 40% tree-cover target — about 1,942 t of extra CO₂ absorbed per year once grown.
How are Wuwei's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Liangzhou 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 Liangzhou District; the tree count is an estimate derived from that cover.
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