City report · Hebei, China
Shanhaiguan Air quality today
Air quality in Shanhaiguan currently reads AQI 156 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 156
Unhealthy
- PM2.5, fine particles (µg/m³)
- 63.2
- tree cover
- 11.2%
- trees in this area
- 35.2K
- more trees needed
- 90.4K
Measured across a 2 km radius around Shanhaiguan District, Qinhuangdao, Hebei, China (12.57 km²), from a satellite image of Sep 22, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Shanhaiguan · AQI 156 (Unhealthy)
Shanhaiguan's tree count comes to 35,151 trees across 12.56 km² of land, 29 points below the 40% tree-cover level considered healthy for this area, so roughly 90,387 more trees would close the gap.
Air quality detail
Air quality in Shanhaiguan today: AQI 156, 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 · Shanhaiguan District Government, Qinhuangdao (秦皇岛市山海关区政府), 3 km away
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
63.2
PM10
79.2
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
- 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 Shanhaiguan's daily AQI at 87 on average, from 57 on Nov 7 to an hourly peak of 147 on Nov 11.
Where Shanhaiguan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Shanhaiguan: Critically low
11.2% tree cover against a 40% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
35,151
Target trees
125,538
More trees needed
90,387
CO₂ if planted / yr
1,989 t
Deforestation · 2001–2025
How much forest has Shanhaiguan lost?
There was very little forest around Shanhaiguan in 2000, about 28 hectares, and about 3 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.
The worst year was 2010, when about 2 hectares of forest were lost.
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 | 1 ha | 2 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 Shanhaiguan?
- Loggingcan grow back18% · under 1 ha
- Mining and energycleared for good12% · under 1 ha
- Towns and roadscleared for good12% · under 1 ha
Also: farms, pasture and plantations, 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
- 2,890 ha
- Forest in 2020
- 3,170 ha
- Overall change
- +281 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Shanhaiguan grew from about 2,890 hectares to 3,170 hectares, a net gain of about 281 hectares (+9.7%). New forest grew on about 283 hectares, while 2 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 Shanhaiguan
What is the air quality (AQI) in Shanhaiguan right now?
The latest reading for Shanhaiguan shows an AQI of 156 (Unhealthy), measured Nov 11, 21:00 local time by the Shanhaiguan District Government, Qinhuangdao (秦皇岛市山海关区政府) ground monitoring station, 3 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 Shanhaiguan today?
At AQI 156 (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 Shanhaiguan been like this week?
Over the last 7 days, the CAMS air-quality model put Shanhaiguan's daily AQI at 87 on average, from 57 on Nov 7 to an hourly peak of 147 on Nov 11. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Shanhaiguan lost since 2001?
There was very little forest around Shanhaiguan in 2000, about 28 hectares, and about 3 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 Shanhaiguan grew from about 2,890 hectares to 3,170 hectares, a net gain of about 281 hectares (+9.7%). New forest grew on about 283 hectares, while 2 hectares were lost.
What is the tree count in Shanhaiguan?
Shanhaiguan has an estimated 35,151 trees across the 12.56 km² of land measured — 11.2% tree cover, 29 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Shanhaiguan need?
Shanhaiguan needs roughly 90,387 more trees to close a 29-point shortfall against its 40% tree-cover target — about 1,989 t of extra CO₂ absorbed per year once grown.
How are Shanhaiguan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Shanhaiguan 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 Shanhaiguan District; the tree count is an estimate derived from that cover.
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