City report · Xinjiang, China
Korla Air quality today
Air quality in Korla currently reads AQI 77 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 77
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 25.7
- tree cover
- 21.8%
- trees in this area
- 68.5K
- more trees needed
- 25.8K
Measured across a 2 km radius around Korla, Bayingolin Mongol Autonomous Prefecture, 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.
Korla · AQI 77 (Moderate)
Korla's tree count comes to 68,487 trees across 12.57 km², 8 points below the 30% tree-cover level considered healthy for this area, so roughly 25,761 more trees would close the gap.
Air quality detail
Air quality in Korla today: AQI 77, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 17:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
25.7
PM10
163.9
NO₂
2.2
O₃
89.0
SO₂
3.9
CO
267.0
- 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 Korla's daily AQI at 104 on average, from 70 on Nov 10 to an hourly peak of 162 on Nov 4.
Where Korla stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Korla: Below target
21.8% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
68,487
Target trees
94,248
More trees needed
25,761
CO₂ if planted / yr
566.7 t
Deforestation · 2001–2025
How much forest has Korla lost?
There was almost no forest around Korla 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 July 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 144 ha
- Forest in 2020
- 275 ha
- Overall change
- +131 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Korla grew from about 144 hectares to 275 hectares, a net gain of about 131 hectares (+91%). New forest grew on about 132 hectares, while 1 hectare 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 Korla
What is the air quality (AQI) in Korla right now?
The latest reading for Korla shows an AQI of 77 (Moderate), observed Nov 10, 17:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Korla today?
At AQI 77 (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 Korla been like this week?
Over the last 7 days, the CAMS air-quality model put Korla's daily AQI at 104 on average, from 70 on Nov 10 to an hourly peak of 162 on Nov 4. On 5 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Korla lost since 2001?
There was almost no forest around Korla 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 Korla grew from about 144 hectares to 275 hectares, a net gain of about 131 hectares (+91%). New forest grew on about 132 hectares, while 1 hectare were lost.
What is the tree count in Korla?
Korla has an estimated 68,487 trees across the 12.57 km² measured — 21.8% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Korla need?
Korla needs roughly 25,761 more trees to close a 8-point shortfall against its 30% tree-cover target — about 566.7 t of extra CO₂ absorbed per year once grown.
How are Korla's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Korla; the tree count is an estimate derived from that cover.
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