City report · Thai Nguyen, Vietnam
Thành phố Sông Công Air quality today
Air quality in Thành phố Sông Công currently reads AQI 60 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 60
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 18.6
- tree cover
- 57.4%
- trees in this area
- 180K
- more trees needed
- 0
Measured across a 2 km radius around Ba Xuyen, 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.
Thành phố Sông Công · AQI 60 (Moderate)
Thành phố Sông Công's tree count comes to 180,327 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 Thành phố Sông Công today: AQI 60, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 145 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 7 station cities within 145 km, e.g. Vinh Phuc and Tây Tựu
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
18.6
PM10
31.5
NO₂
34.8
O₃
58.0
SO₂
27.5
CO
468.0
- 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 Thành phố Sông Công's daily AQI at 55 on average, from 33 on Nov 10 to an hourly peak of 98 on Nov 8.
Where Thành phố Sông Công stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Thành phố Sông Công: Healthy tree cover
57.4% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
180,327
Target trees
180,327
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Thành phố Sông Công lost?
Since 2001, the area within 10 km of Thành phố Sông Công has lost about 1,300 hectares of forest (about 1,800 football pitches): 63% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 44 hectares (3.4%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from December 2017 of a 5 × 5 km area about 7 km west of the city center.
- Forest lost since 2001
- 1,300 haabout 1,800 football pitches
- Share of its forest
- 63%of what there was in 2000
- Cleared for good
- 44 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 88 hectares a year in 2021–2025, against 81 hectares a year in 2016–2020. The worst year was 2022, when about 162 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 | 27 ha | 27 ha |
| 2002 | under 1 ha | 4 ha | 4 ha |
| 2003 | under 1 ha | 20 ha | 20 ha |
| 2004 | under 1 ha | 15 ha | 16 ha |
| 2005 | under 1 ha | 32 ha | 32 ha |
| 2006 | under 1 ha | 12 ha | 13 ha |
| 2007 | 1 ha | 16 ha | 17 ha |
| 2008 | under 1 ha | 13 ha | 13 ha |
| 2009 | 1 ha | 23 ha | 24 ha |
| 2010 | 4 ha | 7 ha | 11 ha |
| 2011 | 1 ha | 20 ha | 21 ha |
| 2012 | under 1 ha | 17 ha | 17 ha |
| 2013 | under 1 ha | 57 ha | 58 ha |
| 2014 | 1 ha | 90 ha | 92 ha |
| 2015 | 2 ha | 91 ha | 94 ha |
| 2016 | 3 ha | 90 ha | 93 ha |
| 2017 | 2 ha | 76 ha | 78 ha |
| 2018 | 3 ha | 75 ha | 78 ha |
| 2019 | 6 ha | 98 ha | 103 ha |
| 2020 | 3 ha | 51 ha | 55 ha |
| 2021 | 3 ha | 109 ha | 112 ha |
| 2022 | 3 ha | 159 ha | 162 ha |
| 2023 | 2 ha | 62 ha | 64 ha |
| 2024 | 3 ha | 58 ha | 61 ha |
| 2025 | 2 ha | 37 ha | 39 ha |
What is causing deforestation around Thành phố Sông Công?
- Loggingcan grow back97% · 1,260 ha
- Towns and roadscleared for good3.1% · 40 ha
Also: 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
- 15,100 ha
- Forest in 2020
- 14,900 ha
- Overall change
- −225 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Thành phố Sông Công stayed about the same size, at about 14,900 hectares: new forest grew on about 425 hectares, and about 650 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 Thành phố Sông Công
Same 2 km radius, same index — so they compare directly.
- Thái Nguyên13.0 km
Vietnam
- Tree cover
- 36%
- Air quality
- 52
- Thị Trấn Đại Từ27.3 km
Vietnam
- Tree cover
- 62%
- Air quality
- 56
- Phúc Yên30.2 km
Vietnam
- Tree cover
- 39%
- Air quality
- 119
- Vĩnh Yên30.8 km
Vietnam
- Tree cover
- 39%
- Air quality
- 112
- Bắc Ninh40.5 km
Vietnam
- Tree cover
- 32%
- Air quality
- 99
- Bắc Giang43.0 km
Vietnam
- Tree cover
- 27%
- Air quality
- 52
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Frequently asked
Questions about Thành phố Sông Công
What is the air quality (AQI) in Thành phố Sông Công right now?
The latest reading for Thành phố Sông Công shows an AQI of 60 (Moderate), observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 145 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 Thành phố Sông Công today?
At AQI 60 (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 Thành phố Sông Công been like this week?
Over the last 7 days, the CAMS air-quality model put Thành phố Sông Công's daily AQI at 55 on average, from 33 on Nov 10 to an hourly peak of 98 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 Thành phố Sông Công lost since 2001?
Since 2001, the area within 10 km of Thành phố Sông Công has lost about 1,300 hectares of forest (about 1,800 football pitches): 63% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 44 hectares (3.4%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 88 hectares a year in 2021–2025, against 81 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Thành phố Sông Công stayed about the same size, at about 14,900 hectares: new forest grew on about 425 hectares, and about 650 hectares were lost.
What is the tree count in Thành phố Sông Công?
Thành phố Sông Công has an estimated 180,327 trees across the 12.57 km² measured — 57.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Thành phố Sông Công need?
Thành phố Sông Công has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Thành phố Sông Công'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 Ba Xuyen; the tree count is an estimate derived from that cover.
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