City report · Thai Nguyen, Vietnam
Thị Trấn Đại Từ Air quality today
Air quality in Thị Trấn Đại Từ currently reads AQI 58 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 58
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 17.0
- tree cover
- 61.6%
- trees in this area
- 194K
- more trees needed
- 0
Measured across a 2 km radius around Dai Phuc, Thai Nguyen, Vietnam (12.57 km²), from a satellite image of Sep 19, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Thị Trấn Đại Từ · AQI 58 (Moderate)
Thị Trấn Đại Từ's tree count comes to 193,522 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 Đại Từ today: AQI 58, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 105 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 105 km, e.g. Vinh Phuc and Tây Tựu
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
17.0
PM10
29.6
NO₂
29.9
O₃
58.0
SO₂
16.6
CO
584.0
- 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 Thị Trấn Đại Từ's daily AQI at 57 on average, from 33 on Nov 9 to an hourly peak of 117 on Nov 8.
Where Thị Trấn Đại Từ stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Thị Trấn Đại Từ: Healthy tree cover
61.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
193,522
Target trees
193,522
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Thị Trấn Đại Từ lost?
Since 2001, the area within 10 km of Thị Trấn Đại Từ has lost about 4,950 hectares of forest (about 6,900 football pitches): 41% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 636 hectares (13%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from October 2017 of a 5 × 5 km area about 6 km east of the city center.
- Forest lost since 2001
- 4,950 haabout 6,900 football pitches
- Share of its forest
- 41%of what there was in 2000
- Cleared for good
- 636 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 313 hectares a year in 2021–2025, against 386 hectares a year in 2016–2020. The worst year was 2016, when about 696 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 | 5 ha | 22 ha | 27 ha |
| 2002 | under 1 ha | 3 ha | 3 ha |
| 2003 | 6 ha | 40 ha | 46 ha |
| 2004 | 18 ha | 120 ha | 138 ha |
| 2005 | 13 ha | 69 ha | 83 ha |
| 2006 | 3 ha | 15 ha | 18 ha |
| 2007 | 3 ha | 38 ha | 41 ha |
| 2008 | 7 ha | 45 ha | 52 ha |
| 2009 | 9 ha | 46 ha | 55 ha |
| 2010 | 15 ha | 35 ha | 51 ha |
| 2011 | 73 ha | 84 ha | 157 ha |
| 2012 | 32 ha | 23 ha | 55 ha |
| 2013 | 18 ha | 104 ha | 122 ha |
| 2014 | 34 ha | 203 ha | 237 ha |
| 2015 | 32 ha | 340 ha | 372 ha |
| 2016 | 80 ha | 616 ha | 696 ha |
| 2017 | 33 ha | 354 ha | 386 ha |
| 2018 | 41 ha | 313 ha | 354 ha |
| 2019 | 33 ha | 234 ha | 267 ha |
| 2020 | 27 ha | 201 ha | 228 ha |
| 2021 | 26 ha | 272 ha | 298 ha |
| 2022 | 45 ha | 384 ha | 429 ha |
| 2023 | 18 ha | 271 ha | 289 ha |
| 2024 | 23 ha | 244 ha | 267 ha |
| 2025 | 41 ha | 243 ha | 284 ha |
What is causing deforestation around Thị Trấn Đại Từ?
- Loggingcan grow back85% · 4,200 ha
- Farms, pasture and plantationscleared for good6.7% · 331 ha
- Mining and energycleared for good5.9% · 290 ha
Also: shifting farming, towns and roads, storms, floods and other natural causes, 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
- 22,800 ha
- Forest in 2020
- 22,300 ha
- Overall change
- −446 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Thị Trấn Đại Từ stayed about the same size, at about 22,300 hectares: new forest grew on about 373 hectares, and about 818 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 Thị Trấn Đại Từ
Same 2 km radius, same index — so they compare directly.
- Thái Nguyên22.2 km
Vietnam
- Tree cover
- 36%
- Air quality
- 52
- Thành phố Sông Công27.3 km
Vietnam
- Tree cover
- 57%
- Air quality
- 58
- Phổ Yên35.3 km
Vietnam
- Tree cover
- 38%
- Air quality
- 52
- Vĩnh Yên36.3 km
Vietnam
- Tree cover
- 39%
- Air quality
- 112
- Việt Trì42.3 km
Vietnam
- Tree cover
- 40%
- Air quality
- 112
- Phúc Yên44.7 km
Vietnam
- Tree cover
- 39%
- Air quality
- 119
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Frequently asked
Questions about Thị Trấn Đại Từ
What is the air quality (AQI) in Thị Trấn Đại Từ right now?
The latest reading for Thị Trấn Đại Từ shows an AQI of 58 (Moderate), observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 105 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 Thị Trấn Đại Từ today?
At AQI 58 (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 Thị Trấn Đại Từ been like this week?
Over the last 7 days, the CAMS air-quality model put Thị Trấn Đại Từ's daily AQI at 57 on average, from 33 on Nov 9 to an hourly peak of 117 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Thị Trấn Đại Từ lost since 2001?
Since 2001, the area within 10 km of Thị Trấn Đại Từ has lost about 4,950 hectares of forest (about 6,900 football pitches): 41% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 636 hectares (13%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 313 hectares a year in 2021–2025, against 386 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Thị Trấn Đại Từ stayed about the same size, at about 22,300 hectares: new forest grew on about 373 hectares, and about 818 hectares were lost.
What is the tree count in Thị Trấn Đại Từ?
Thị Trấn Đại Từ has an estimated 193,522 trees across the 12.57 km² measured — 61.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Thị Trấn Đại Từ need?
Thị Trấn Đại Từ has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Thị Trấn Đại Từ'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 Dai Phuc; the tree count is an estimate derived from that cover.
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