City report · Hebei, China
Xuanhua Air quality today
Air quality in Xuanhua 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)
- 23.0
- tree cover
- 8.6%
- trees in this area
- 26.9K
- more trees needed
- 67.0K
Measured across a 2 km radius around Xuanhua County, Zhangjiakou, Hebei, China (12.57 km²), from a satellite image of Sep 23, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Xuanhua · AQI 77 (Moderate)
Xuanhua's tree count comes to 26,937 trees across 12.53 km² of land, 21 points below the 30% tree-cover level considered healthy for this area, so roughly 67,028 more trees would close the gap.
Air quality detail
Air quality in Xuanhua today: AQI 77, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 23:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Century Compound, Zhangjiakou (张家口市世纪豪园), 22.1 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
23.0
PM10
37.8
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Hebei Province Environment Protection Agency (河北省空气质量自动发布系统)
- 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 Xuanhua's daily AQI at 72 on average, from 56 on Nov 6 to an hourly peak of 163 on Nov 5.
Where Xuanhua stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Xuanhua: Critically low
8.6% tree cover against a 30% healthy-neighborhood target, across 12.53 km² of land.
Trees in this area
26,937
Target trees
93,965
More trees needed
67,028
CO₂ if planted / yr
1,475 t
Deforestation · 2001–2025
How much forest has Xuanhua lost?
There was very little forest around Xuanhua in 2000, about 24 hectares, and about 2 hectares 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 June 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 Xuanhua?
- Towns and roadscleared for good37% · under 1 ha
- Farms, pasture and plantationscleared for good13% · under 1 ha
- Mining and energycleared for good13% · under 1 ha
Also: unknown causes.
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
- 153 ha
- Forest in 2020
- 223 ha
- Overall change
- +70 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Xuanhua grew from about 153 hectares to 223 hectares, a net gain of about 70 hectares (+46%). New forest grew on about 77 hectares, while 7 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 Xuanhua
What is the air quality (AQI) in Xuanhua right now?
The latest reading for Xuanhua shows an AQI of 77 (Moderate), measured Nov 11, 23:00 local time by the Century Compound, Zhangjiakou (张家口市世纪豪园) ground monitoring station, 22.1 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Xuanhua 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 Xuanhua been like this week?
Over the last 7 days, the CAMS air-quality model put Xuanhua's daily AQI at 72 on average, from 56 on Nov 6 to an hourly peak of 163 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 Xuanhua lost since 2001?
There was very little forest around Xuanhua in 2000, about 24 hectares, and about 2 hectares 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 Xuanhua grew from about 153 hectares to 223 hectares, a net gain of about 70 hectares (+46%). New forest grew on about 77 hectares, while 7 hectares were lost.
What is the tree count in Xuanhua?
Xuanhua has an estimated 26,937 trees across the 12.53 km² of land measured — 8.6% tree cover, 21 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Xuanhua need?
Xuanhua needs roughly 67,028 more trees to close a 21-point shortfall against its 30% tree-cover target — about 1,475 t of extra CO₂ absorbed per year once grown.
How are Xuanhua's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Xuanhua County, 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 Xuanhua County; the tree count is an estimate derived from that cover.
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