City report · Sơn La Province, Vietnam
Thị Trấn Thuận Châu Air quality today
Air quality in Thị Trấn Thuận Châu currently reads AQI 29 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 29
Good
- PM2.5, fine particles (µg/m³)
- 5.0
- tree cover
- 82.6%
- trees in this area
- 259K
- more trees needed
- 0
Measured across a 2 km radius around Thuan Chau, Son La, Vietnam (12.57 km²), from a satellite image of Sep 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Thị Trấn Thuận Châu · AQI 29 (Good)
Thị Trấn Thuận Châu's tree count comes to 259,496 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Thị Trấn Thuận Châu today: AQI 29, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 225 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 6 station cities within 225 km, e.g. Vinh Phuc and Phuc Yen
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.0
PM10
4.7
NO₂
2.2
O₃
76.0
SO₂
3.2
CO
222.0
- 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 Thị Trấn Thuận Châu's daily AQI at 35 on average, from 19 on Nov 10 to an hourly peak of 66 on Nov 5.
Where Thị Trấn Thuận Châu stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Thị Trấn Thuận Châu: Healthy tree cover
82.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
259,496
Target trees
259,496
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Thị Trấn Thuận Châu lost?
Since 2001, the area within 10 km of Thị Trấn Thuận Châu has lost about 1,320 hectares of forest (about 1,900 football pitches): 9.2% of the forest it had in 2000. Most of it (69%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2018: satellite photo from February 2018 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 1,320 haabout 1,900 football pitches
- Share of its forest
- 9.2%of what there was in 2000
- Cleared for good
- 911 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 58 hectares a year in 2021–2025, up from 24 hectares a year in 2016–2020. The worst year was 2006, when about 194 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 | 6 ha | under 1 ha | 6 ha |
| 2002 | 5 ha | 3 ha | 8 ha |
| 2003 | 80 ha | 9 ha | 89 ha |
| 2004 | 17 ha | 4 ha | 21 ha |
| 2005 | 94 ha | 52 ha | 146 ha |
| 2006 | 133 ha | 61 ha | 194 ha |
| 2007 | 36 ha | 29 ha | 65 ha |
| 2008 | 42 ha | 14 ha | 57 ha |
| 2009 | 11 ha | under 1 ha | 11 ha |
| 2010 | 115 ha | 28 ha | 143 ha |
| 2011 | 59 ha | 39 ha | 98 ha |
| 2012 | 25 ha | 1 ha | 26 ha |
| 2013 | 8 ha | 4 ha | 12 ha |
| 2014 | 12 ha | 3 ha | 14 ha |
| 2015 | 18 ha | 5 ha | 23 ha |
| 2016 | 16 ha | 23 ha | 38 ha |
| 2017 | 27 ha | 4 ha | 31 ha |
| 2018 | 11 ha | 7 ha | 18 ha |
| 2019 | 8 ha | 5 ha | 13 ha |
| 2020 | 14 ha | 8 ha | 21 ha |
| 2021 | 12 ha | 17 ha | 29 ha |
| 2022 | 26 ha | 15 ha | 41 ha |
| 2023 | 40 ha | 31 ha | 71 ha |
| 2024 | 55 ha | 29 ha | 84 ha |
| 2025 | 44 ha | 20 ha | 64 ha |
What is causing deforestation around Thị Trấn Thuận Châu?
- Farms, pasture and plantationscleared for good69% · 909 ha
- Shifting farmingcan grow back29% · 380 ha
- Loggingcan grow back2.2% · 29 ha
Also: towns and roads, 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
- 20,900 ha
- Forest in 2020
- 22,300 ha
- Overall change
- +1,390 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Thị Trấn Thuận Châu grew from about 20,900 hectares to 22,300 hectares, a net gain of about 1,390 hectares (+6.7%). New forest grew on about 2,060 hectares, while 672 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 Thị Trấn Thuận Châu
What is the air quality (AQI) in Thị Trấn Thuận Châu right now?
The latest reading for Thị Trấn Thuận Châu shows an AQI of 29 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 225 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Thị Trấn Thuận Châu today?
At AQI 29 (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 Thị Trấn Thuận Châu been like this week?
Over the last 7 days, the CAMS air-quality model put Thị Trấn Thuận Châu's daily AQI at 35 on average, from 19 on Nov 10 to an hourly peak of 66 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 Thị Trấn Thuận Châu lost since 2001?
Since 2001, the area within 10 km of Thị Trấn Thuận Châu has lost about 1,320 hectares of forest (about 1,900 football pitches): 9.2% of the forest it had in 2000. Most of it (69%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is speeding up: about 58 hectares a year in 2021–2025, up from 24 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Thị Trấn Thuận Châu grew from about 20,900 hectares to 22,300 hectares, a net gain of about 1,390 hectares (+6.7%). New forest grew on about 2,060 hectares, while 672 hectares were lost.
What is the tree count in Thị Trấn Thuận Châu?
Thị Trấn Thuận Châu has an estimated 259,496 trees across the 12.57 km² measured — 82.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Thị Trấn Thuận Châu need?
Thị Trấn Thuận Châu has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Thị Trấn Thuận Châu'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 Thuan Chau; the tree count is an estimate derived from that cover.
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