City report · Xinjiang, China
Bole Air quality today
Air quality in Bole currently reads AQI 78 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 78
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 22.0
- tree cover
- 12.4%
- trees in this area
- 38.8K
- more trees needed
- 55.1K
Measured across a 2 km radius around Bole, Bortala Mongol Autonomous Prefecture, Xinjiang, China (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bole · AQI 78 (Moderate)
Bole's tree count comes to 38,800 trees across 12.52 km² of land, 18 points below the 30% tree-cover level considered healthy for this area, so roughly 55,071 more trees would close the gap.
Air quality detail
Air quality in Bole today: AQI 78, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 03:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 245 km, e.g. Ili and Tacheng Prefecture
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
22.0
PM10
23.7
NO₂
21.0
O₃
26.0
SO₂
16.0
CO
718.0
- 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 Bole's daily AQI at 67 on average, from 59 on Nov 9 to an hourly peak of 97 on Nov 7.
Where Bole stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bole: Critically low
12.4% tree cover against a 30% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
38,800
Target trees
93,871
More trees needed
55,071
CO₂ if planted / yr
1,212 t
Deforestation · 2001–2025
How much forest has Bole lost?
There was very little forest around Bole in 2000, about 12 hectares, and about 1 hectare of it has been lost 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 August 2017 of a 5 × 5 km area in the city center.
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 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 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 Bole?
- Loggingcan grow back58% · under 1 ha
- Towns and roadscleared for good25% · under 1 ha
- Unknown causescause unknown17% · under 1 ha
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
- 114 ha
- Forest in 2020
- 488 ha
- Overall change
- +374 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bole grew from about 114 hectares to 488 hectares, a net gain of about 374 hectares (+328%). New forest grew on about 375 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 Bole
What is the air quality (AQI) in Bole right now?
The latest reading for Bole shows an AQI of 78 (Moderate), observed Nov 11, 03:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 245 km, 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 Bole today?
At AQI 78 (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 Bole been like this week?
Over the last 7 days, the CAMS air-quality model put Bole's daily AQI at 67 on average, from 59 on Nov 9 to an hourly peak of 97 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Bole lost since 2001?
There was very little forest around Bole in 2000, about 12 hectares, and about 1 hectare of it has been lost 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 Bole grew from about 114 hectares to 488 hectares, a net gain of about 374 hectares (+328%). New forest grew on about 375 hectares, while under 1 hectare was lost.
What is the tree count in Bole?
Bole has an estimated 38,800 trees across the 12.52 km² of land measured — 12.4% tree cover, 18 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bole need?
Bole needs roughly 55,071 more trees to close a 18-point shortfall against its 30% tree-cover target — about 1,212 t of extra CO₂ absorbed per year once grown.
How are Bole'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 Bole; the tree count is an estimate derived from that cover.
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