City report · Thai Nguyen, Vietnam
Thái Nguyên Air quality today
Air quality in Thái Nguyên currently reads AQI 54 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 54
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 13.5
- tree cover
- 35.9%
- trees in this area
- 111K
- more trees needed
- 0
Measured across a 2 km radius around Phan Dinh Phung, Thai Nguyen, Vietnam (12.57 km²), from a satellite image of Aug 10, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Thái Nguyên · AQI 54 (Moderate)
Thái Nguyên's tree count comes to 110,640 trees across 12.33 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Thái Nguyên today: AQI 54, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 20:00 local time via Open-Meteo / CAMS, corrected with 8 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 8 station cities within 165 km, e.g. Vinh Phuc and Tây Tựu
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
13.5
PM10
23.1
NO₂
28.9
O₃
28.0
SO₂
14.1
CO
971.0
- 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 Thái Nguyên's daily AQI at 59 on average, from 31 on Nov 10 to an hourly peak of 135 on Nov 4.
Where Thái Nguyên stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Thái Nguyên: Healthy tree cover
35.9% tree cover against a 30% healthy-neighborhood target, across 12.33 km² of land.
Trees in this area
110,640
Target trees
110,640
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Thái Nguyên lost?
Since 2001, the area within 10 km of Thái Nguyên has lost about 2,000 hectares of forest (about 2,800 football pitches): 62% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 110 hectares (5.5%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km northeast of the city center.
- Forest lost since 2001
- 2,000 haabout 2,800 football pitches
- Share of its forest
- 62%of what there was in 2000
- Cleared for good
- 110 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 121 hectares a year in 2021–2025, against 152 hectares a year in 2016–2020. The worst year was 2016, when about 234 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 | 5 ha | 5 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 2 ha | 31 ha | 32 ha |
| 2005 | 2 ha | 49 ha | 51 ha |
| 2006 | 1 ha | 4 ha | 5 ha |
| 2007 | 3 ha | 16 ha | 18 ha |
| 2008 | 2 ha | 11 ha | 12 ha |
| 2009 | 2 ha | 15 ha | 17 ha |
| 2010 | 8 ha | 13 ha | 21 ha |
| 2011 | 4 ha | 30 ha | 34 ha |
| 2012 | under 1 ha | 14 ha | 14 ha |
| 2013 | under 1 ha | 120 ha | 120 ha |
| 2014 | 5 ha | 120 ha | 125 ha |
| 2015 | 9 ha | 173 ha | 182 ha |
| 2016 | 11 ha | 223 ha | 234 ha |
| 2017 | 5 ha | 129 ha | 134 ha |
| 2018 | 8 ha | 134 ha | 142 ha |
| 2019 | 9 ha | 120 ha | 129 ha |
| 2020 | 9 ha | 111 ha | 120 ha |
| 2021 | 11 ha | 213 ha | 224 ha |
| 2022 | 8 ha | 129 ha | 137 ha |
| 2023 | 2 ha | 68 ha | 70 ha |
| 2024 | 5 ha | 79 ha | 84 ha |
| 2025 | 4 ha | 86 ha | 91 ha |
What is causing deforestation around Thái Nguyên?
- Loggingcan grow back94% · 1,890 ha
- Towns and roadscleared for good4% · 80 ha
Also: farms, pasture and plantations, 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
- 16,800 ha
- Forest in 2020
- 16,400 ha
- Overall change
- −341 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Thái Nguyên shrank from about 16,800 hectares to 16,400 hectares, a net loss of about 341 hectares (−2%). New forest grew on about 490 hectares, but 830 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
In the same region
Measured cities near Thái Nguyên
Same 2 km radius, same index — so they compare directly.
- Thành phố Sông Công13.0 km
Vietnam
- Tree cover
- 57%
- Air quality
- 58
- Phổ Yên19.9 km
Vietnam
- Tree cover
- 38%
- Air quality
- 52
- Thị Trấn Đại Từ22.2 km
Vietnam
- Tree cover
- 62%
- Air quality
- 56
- Vĩnh Yên40.5 km
Vietnam
- Tree cover
- 39%
- Air quality
- 112
- Phúc Yên42.4 km
Vietnam
- Tree cover
- 39%
- Air quality
- 119
- Bắc Giang50.6 km
Vietnam
- Tree cover
- 27%
- Air quality
- 52
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Frequently asked
Questions about Thái Nguyên
What is the air quality (AQI) in Thái Nguyên right now?
The latest reading for Thái Nguyên shows an AQI of 54 (Moderate), observed Nov 10, 20:00 local time via Open-Meteo / CAMS, corrected with 8 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Thái Nguyên today?
At AQI 54 (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 Thái Nguyên been like this week?
Over the last 7 days, the CAMS air-quality model put Thái Nguyên's daily AQI at 59 on average, from 31 on Nov 10 to an hourly peak of 135 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Thái Nguyên lost since 2001?
Since 2001, the area within 10 km of Thái Nguyên has lost about 2,000 hectares of forest (about 2,800 football pitches): 62% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 110 hectares (5.5%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 121 hectares a year in 2021–2025, against 152 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Thái Nguyên shrank from about 16,800 hectares to 16,400 hectares, a net loss of about 341 hectares (−2%). New forest grew on about 490 hectares, but 830 hectares were lost.
What is the tree count in Thái Nguyên?
Thái Nguyên has an estimated 110,640 trees across the 12.33 km² of land measured — 35.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Thái Nguyên need?
Thái Nguyên has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Thái Nguyên'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 Phan Dinh Phung; the tree count is an estimate derived from that cover.
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