City report · Sichuan, China
Guangyuan Air quality today
Air quality in Guangyuan 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)
- 23.5
- tree cover
- 26.6%
- trees in this area
- 72.5K
- more trees needed
- 9.3K
Measured across a 2 km radius around Lizhou District, Guangyuan, Sichuan, China (12.57 km²), from a satellite image of Sep 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Guangyuan · AQI 78 (Moderate)
Guangyuan's tree count comes to 72,452 trees across 10.9 km² of land, 3 points below the 30% tree-cover level considered healthy for this area, so roughly 9,261 more trees would close the gap.
Air quality detail
Air quality in Guangyuan today: AQI 78, 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 · Old Town, Guangyuan (广元老城), 200 m away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
23.5
PM10
47.0
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Sichuan Province Environmental Protection Agency (四川省环保重点城市环境空气质量实时监测结果)
- 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 Guangyuan's daily AQI at 64 on average, from 33 on Nov 9 to an hourly peak of 128 on Nov 6.
Where Guangyuan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Guangyuan: Below target
26.6% tree cover against a 30% healthy-neighborhood target, across 10.9 km² of land.
Trees in this area
72,452
Target trees
81,713
More trees needed
9,261
CO₂ if planted / yr
203.7 t
Deforestation · 2001–2025
How much forest has Guangyuan lost?
Since 2001, the area within 10 km of Guangyuan has lost about 605 hectares of forest (about 850 football pitches): 6.7% of the forest it had in 2000. Most of it (54%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km southeast of the city center.
- Forest lost since 2001
- 605 haabout 850 football pitches
- Share of its forest
- 6.7%of what there was in 2000
- Cleared for good
- 324 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 52 hectares a year in 2021–2025, up from 34 hectares a year in 2016–2020. The worst year was 2025, when about 102 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 | 1 ha |
| 2002 | under 1 ha | under 1 ha | 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 10 ha | 13 ha | 23 ha |
| 2005 | under 1 ha | 1 ha | 2 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | 4 ha | 54 ha | 58 ha |
| 2008 | 5 ha | 8 ha | 13 ha |
| 2009 | 2 ha | 7 ha | 9 ha |
| 2010 | 6 ha | 3 ha | 9 ha |
| 2011 | 9 ha | 4 ha | 13 ha |
| 2012 | 8 ha | 2 ha | 10 ha |
| 2013 | 3 ha | 2 ha | 5 ha |
| 2014 | 9 ha | 5 ha | 14 ha |
| 2015 | 8 ha | 9 ha | 17 ha |
| 2016 | 15 ha | 9 ha | 23 ha |
| 2017 | 45 ha | 8 ha | 53 ha |
| 2018 | 17 ha | 11 ha | 28 ha |
| 2019 | 33 ha | 4 ha | 37 ha |
| 2020 | 19 ha | 8 ha | 26 ha |
| 2021 | 18 ha | 7 ha | 24 ha |
| 2022 | 54 ha | 15 ha | 69 ha |
| 2023 | 9 ha | 3 ha | 12 ha |
| 2024 | 18 ha | 37 ha | 55 ha |
| 2025 | 32 ha | 70 ha | 102 ha |
What is causing deforestation around Guangyuan?
- Towns and roadscleared for good41% · 245 ha
- Loggingcan grow back38% · 232 ha
- Mining and energycleared for good8.9% · 54 ha
Also: wildfires, 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
- 18,500 ha
- Forest in 2020
- 18,900 ha
- Overall change
- +362 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Guangyuan stayed about the same size, at about 18,900 hectares: new forest grew on about 674 hectares, and about 311 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 Guangyuan
What is the air quality (AQI) in Guangyuan right now?
The latest reading for Guangyuan shows an AQI of 78 (Moderate), measured Nov 11, 23:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Old Town, Guangyuan (广元老城), 200 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Guangyuan 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 Guangyuan been like this week?
Over the last 7 days, the CAMS air-quality model put Guangyuan's daily AQI at 64 on average, from 33 on Nov 9 to an hourly peak of 128 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Guangyuan lost since 2001?
Since 2001, the area within 10 km of Guangyuan has lost about 605 hectares of forest (about 850 football pitches): 6.7% of the forest it had in 2000. Most of it (54%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss is speeding up: about 52 hectares a year in 2021–2025, up from 34 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Guangyuan stayed about the same size, at about 18,900 hectares: new forest grew on about 674 hectares, and about 311 hectares were lost.
What is the tree count in Guangyuan?
Guangyuan has an estimated 72,452 trees across the 10.9 km² of land measured — 26.6% tree cover, 3 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Guangyuan need?
Guangyuan needs roughly 9,261 more trees to close a 3-point shortfall against its 30% tree-cover target — about 203.7 t of extra CO₂ absorbed per year once grown.
How are Guangyuan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Lizhou 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 Lizhou District; the tree count is an estimate derived from that cover.
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