City report · Sichuan, China
Xichang Air quality today
Air quality in Xichang currently reads AQI 18 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 18
Good
- PM2.5, fine particles (µg/m³)
- 3.3
- tree cover
- 22.6%
- trees in this area
- 71.0K
- more trees needed
- 23.2K
Measured across a 2 km radius around Xichang, Liangshan Yi Autonomous Prefecture, Sichuan, China (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Xichang · AQI 18 (Good)
Xichang's tree count comes to 71,000 trees across 12.57 km², 7 points below the 30% tree-cover level considered healthy for this area, so roughly 23,248 more trees would close the gap.
Air quality detail
Air quality in Xichang today: AQI 18, Good
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 6 station cities within 245 km, e.g. Panzhihua and Zhaotong
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.3
PM10
4.4
NO₂
3.1
O₃
88.0
SO₂
1.2
CO
275.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Xichang's daily AQI at 32 on average, from 17 on Nov 9 to an hourly peak of 70 on Nov 7.
Where Xichang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Xichang: Below target
22.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
71,000
Target trees
94,248
More trees needed
23,248
CO₂ if planted / yr
511.5 t
Deforestation · 2001–2025
How much forest has Xichang lost?
Since 2001, the area within 10 km of Xichang has lost about 1,630 hectares of forest (about 2,300 football pitches): 19% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 155 hectares (9.6%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from March 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 1,630 haabout 2,300 football pitches
- Share of its forest
- 19%of what there was in 2000
- Cleared for good
- 155 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 39 hectares a year in 2021–2025, down from 211 hectares a year in 2016–2020. The worst year was 2020, when about 1,040 hectares of forest were lost, mostly to wildfires.
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 | 9 ha | 35 ha | 44 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | 1 ha | 1 ha |
| 2005 | 9 ha | 18 ha | 28 ha |
| 2006 | 7 ha | 13 ha | 21 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | 12 ha | 22 ha | 34 ha |
| 2009 | 30 ha | 53 ha | 82 ha |
| 2010 | under 1 ha | 6 ha | 6 ha |
| 2011 | 21 ha | 91 ha | 112 ha |
| 2012 | 4 ha | 26 ha | 29 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 1 ha | 19 ha | 21 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 4 ha | 1 ha | 5 ha |
| 2017 | 2 ha | under 1 ha | 2 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | 4 ha | under 1 ha | 4 ha |
| 2020 | 5 ha | 1,040 ha | 1,040 ha |
| 2021 | 10 ha | 125 ha | 135 ha |
| 2022 | 13 ha | 12 ha | 25 ha |
| 2023 | 7 ha | under 1 ha | 7 ha |
| 2024 | 6 ha | 6 ha | 12 ha |
| 2025 | 11 ha | 6 ha | 17 ha |
What is causing deforestation around Xichang?
- Wildfirescan grow back72% · 1,170 ha
- Loggingcan grow back18% · 297 ha
- Farms, pasture and plantationscleared for good5% · 81 ha
Also: towns and roads, mining and energy, 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
- 9,990 ha
- Forest in 2020
- 9,470 ha
- Overall change
- −519 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Xichang shrank from about 9,990 hectares to 9,470 hectares, a net loss of about 519 hectares (−5.2%). New forest grew on about 1,050 hectares, but 1,570 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 Xichang
What is the air quality (AQI) in Xichang right now?
The latest reading for Xichang shows an AQI of 18 (Good), observed Nov 11, 17:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 245 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Xichang today?
At AQI 18 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Xichang been like this week?
Over the last 7 days, the CAMS air-quality model put Xichang's daily AQI at 32 on average, from 17 on Nov 9 to an hourly peak of 70 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 Xichang lost since 2001?
Since 2001, the area within 10 km of Xichang has lost about 1,630 hectares of forest (about 2,300 football pitches): 19% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 155 hectares (9.6%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 39 hectares a year in 2021–2025, down from 211 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Xichang shrank from about 9,990 hectares to 9,470 hectares, a net loss of about 519 hectares (−5.2%). New forest grew on about 1,050 hectares, but 1,570 hectares were lost.
What is the tree count in Xichang?
Xichang has an estimated 71,000 trees across the 12.57 km² measured — 22.6% tree cover, 7 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Xichang need?
Xichang needs roughly 23,248 more trees to close a 7-point shortfall against its 30% tree-cover target — about 511.5 t of extra CO₂ absorbed per year once grown.
How are Xichang'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 Xichang; the tree count is an estimate derived from that cover.
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