City report · Ningxia, China
Xigang Air quality today
Air quality in Xigang currently reads AQI 170 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
AQI 170
Air quality right now
Unhealthy
- PM2.5, fine particles (µg/m³)
- 82.6
- tree cover
- 17.8%
- trees in this area
- 54.9K
- more trees needed
- 68.5K
Measured across a 2 km radius around Helan County, Yinchuan, Ningxia, China (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Xigang · AQI 170 (Unhealthy)
Xigang's tree count comes to 54,914 trees across 12.34 km² of land, 22 points below the 40% tree-cover level considered healthy for this area, so roughly 68,488 more trees would close the gap.
Air quality detail
Air quality in Xigang today: AQI 170, Unhealthy
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 · College Road, Yinchuan (银川学院路), 19.3 km away
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
82.6
PM10
137.8
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Ningxia Environmental Protection Agency (宁夏环境保护网), China National Urban air quality real-time publishing platform (全国城市空气质量实时发布平台)
- 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 Xigang's daily AQI at 115 on average, from 98 on Nov 8 to an hourly peak of 164 on Nov 5.
Where Xigang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Xigang: Critically low
17.8% tree cover against a 40% healthy-neighborhood target, across 12.34 km² of land.
Trees in this area
54,914
Target trees
123,402
More trees needed
68,488
CO₂ if planted / yr
1,507 t
Deforestation · 2001–2025
How much forest has Xigang lost?
Since 2001, the area within 10 km of Xigang has lost about 11 hectares of forest (about 16 football pitches): 6.6% of the forest it had in 2000. The biggest cause was towns and roads (22%). About 3 hectares (28%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 11 haabout 16 football pitches
- Share of its forest
- 6.6%of what there was in 2000
- Cleared for good
- 3 hadeforestation: turned into farms, mines or towns
The worst year was 2002, when about 5 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 | 1 ha | 1 ha | 2 ha |
| 2002 | under 1 ha | 4 ha | 5 ha |
| 2003 | under 1 ha | under 1 ha | 1 ha |
| 2004 | under 1 ha | under 1 ha | 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 Xigang?
- Towns and roadscleared for good22% · 2 ha
- Farms, pasture and plantationscleared for good6.3% · under 1 ha
- Unknown causescause unknown72% · 8 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Xigang
What is the air quality (AQI) in Xigang right now?
The latest reading for Xigang shows an AQI of 170 (Unhealthy), measured Nov 11, 23:00 local time by the College Road, Yinchuan (银川学院路) ground monitoring station, 19.3 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 Xigang today?
At AQI 170 (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 Xigang been like this week?
Over the last 7 days, the CAMS air-quality model put Xigang's daily AQI at 115 on average, from 98 on Nov 8 to an hourly peak of 164 on Nov 5. On 6 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Xigang lost since 2001?
Since 2001, the area within 10 km of Xigang has lost about 11 hectares of forest (about 16 football pitches): 6.6% of the forest it had in 2000. The biggest cause was towns and roads (22%). About 3 hectares (28%) was deforestation: forest cleared for good for farms, mines or towns.
What is the tree count in Xigang?
Xigang has an estimated 54,914 trees across the 12.34 km² of land measured — 17.8% tree cover, 22 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Xigang need?
Xigang needs roughly 68,488 more trees to close a 22-point shortfall against its 40% tree-cover target — about 1,507 t of extra CO₂ absorbed per year once grown.
How are Xigang's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Helan 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 Helan County; the tree count is an estimate derived from that cover.
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