City report · Xinjiang, China
Ürümqi Air quality today
Air quality in Ürümqi currently reads AQI 128 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 128
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 46.5
- tree cover
- 21.5%
- trees in this area
- 66.9K
- more trees needed
- 42.0K
Measured across a 2 km radius around Saybag District, Ürümqi, Xinjiang, China (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ürümqi · AQI 128 (Unhealthy for sensitive groups)
Ürümqi's tree count comes to 66,869 trees across 12.44 km² of land, 13 points below the 35% tree-cover level considered healthy for this area, so roughly 41,987 more trees would close the gap.
Air quality detail
Air quality in Ürümqi today: AQI 128, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 12, 01:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Monitoring station, Wulumuqi (乌鲁木齐监测站), 3.6 km away · median of 4 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
46.5
PM10
115.7
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Urumqi Environmental Protection Agency (乌鲁木齐环保局)
- 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 Ürümqi's daily AQI at 122 on average, from 89 on Nov 9 to an hourly peak of 176 on Nov 6.
Where Ürümqi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ürümqi: Below target
21.5% tree cover against a 35% healthy-neighborhood target, across 12.44 km² of land.
Trees in this area
66,869
Target trees
108,856
More trees needed
41,987
CO₂ if planted / yr
923.7 t
Deforestation · 2001–2025
How much forest has Ürümqi lost?
There was almost no forest around Ürümqi 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 June 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 176 ha
- Forest in 2020
- 400 ha
- Overall change
- +224 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ürümqi grew from about 176 hectares to 400 hectares, a net gain of about 224 hectares (+127%). New forest grew on about 224 hectares, while under 1 hectare was 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 Ürümqi
What is the air quality (AQI) in Ürümqi right now?
The latest reading for Ürümqi shows an AQI of 128 (Unhealthy for sensitive groups), measured Nov 12, 01:00 local time by 4 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Monitoring station, Wulumuqi (乌鲁木齐监测站), 3.6 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Ürümqi today?
At AQI 128 (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 Ürümqi been like this week?
Over the last 7 days, the CAMS air-quality model put Ürümqi's daily AQI at 122 on average, from 89 on Nov 9 to an hourly peak of 176 on Nov 6. On 6 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Ürümqi lost since 2001?
There was almost no forest around Ürümqi 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. Comparing satellite maps from 2000 and 2020, the forest around Ürümqi grew from about 176 hectares to 400 hectares, a net gain of about 224 hectares (+127%). New forest grew on about 224 hectares, while under 1 hectare was lost.
What is the tree count in Ürümqi?
Ürümqi has an estimated 66,869 trees across the 12.44 km² of land measured — 21.5% tree cover, 13 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Ürümqi need?
Ürümqi needs roughly 41,987 more trees to close a 13-point shortfall against its 35% tree-cover target — about 923.7 t of extra CO₂ absorbed per year once grown.
How are Ürümqi's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Saybag 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 Saybag District; the tree count is an estimate derived from that cover.
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