City report · Phu Tho, Vietnam
Hòa Bình Air quality today
Air quality in Hòa Bình currently reads AQI 35 (Good): Air quality is satisfactory for everyone.
AQI 35
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 6.4
- tree cover
- 47.9%
- trees in this area
- 132K
- more trees needed
- 0
Measured across a 2 km radius around Hoa Binh, Vietnam (12.57 km²), from a satellite image of Aug 10, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hòa Bình · AQI 35 (Good)
Hòa Bình's tree count comes to 131,973 trees across 11.02 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Hòa Bình today: AQI 35, Good
Main pollutant: PM2.5 · Observed Nov 11, 02:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 185 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 7 station cities within 185 km, e.g. Tây Tựu and Van Mieu - Quoc Tu Giam
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.4
PM10
11.5
NO₂
13.0
O₃
46.0
SO₂
4.0
CO
421.0
- 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 Hòa Bình's daily AQI at 52 on average, from 35 on Nov 10 to an hourly peak of 86 on Nov 5.
Where Hòa Bình stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hòa Bình: Healthy tree cover
47.9% tree cover against a 30% healthy-neighborhood target, across 11.02 km² of land.
Trees in this area
131,973
Target trees
131,973
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Hòa Bình lost?
Since 2001, the area within 10 km of Hòa Bình has lost about 5,740 hectares of forest (about 8,000 football pitches): 34% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 533 hectares (9.3%) 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 northeast of the city center.
- Forest lost since 2001
- 5,740 haabout 8,000 football pitches
- Share of its forest
- 34%of what there was in 2000
- Cleared for good
- 533 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 248 hectares a year in 2021–2025, down from 583 hectares a year in 2016–2020. The worst year was 2016, when about 988 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 | 3 ha | 19 ha | 21 ha |
| 2002 | 4 ha | 10 ha | 14 ha |
| 2003 | 3 ha | 17 ha | 19 ha |
| 2004 | 17 ha | 51 ha | 68 ha |
| 2005 | 16 ha | 126 ha | 141 ha |
| 2006 | under 1 ha | 11 ha | 12 ha |
| 2007 | 8 ha | 74 ha | 81 ha |
| 2008 | 19 ha | 80 ha | 98 ha |
| 2009 | 9 ha | 71 ha | 79 ha |
| 2010 | 2 ha | 42 ha | 44 ha |
| 2011 | 12 ha | 34 ha | 46 ha |
| 2012 | 6 ha | 22 ha | 28 ha |
| 2013 | 6 ha | 108 ha | 114 ha |
| 2014 | 25 ha | 251 ha | 276 ha |
| 2015 | 34 ha | 502 ha | 536 ha |
| 2016 | 72 ha | 916 ha | 988 ha |
| 2017 | 73 ha | 716 ha | 789 ha |
| 2018 | 42 ha | 444 ha | 486 ha |
| 2019 | 20 ha | 332 ha | 352 ha |
| 2020 | 24 ha | 277 ha | 301 ha |
| 2021 | 27 ha | 242 ha | 269 ha |
| 2022 | 29 ha | 239 ha | 268 ha |
| 2023 | 31 ha | 254 ha | 285 ha |
| 2024 | 24 ha | 202 ha | 226 ha |
| 2025 | 29 ha | 165 ha | 194 ha |
What is causing deforestation around Hòa Bình?
- Loggingcan grow back90% · 5,170 ha
- Farms, pasture and plantationscleared for good7.3% · 418 ha
- Towns and roadscleared for good1.5% · 86 ha
Also: mining and energy, shifting farming, 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
- 24,100 ha
- Forest in 2020
- 23,500 ha
- Overall change
- −618 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hòa Bình shrank from about 24,100 hectares to 23,500 hectares, a net loss of about 618 hectares (−2.6%). New forest grew on about 460 hectares, but 1,080 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 Hòa Bình
What is the air quality (AQI) in Hòa Bình right now?
The latest reading for Hòa Bình shows an AQI of 35 (Good), observed Nov 11, 02:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 185 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hòa Bình today?
At AQI 35 (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 Hòa Bình been like this week?
Over the last 7 days, the CAMS air-quality model put Hòa Bình's daily AQI at 52 on average, from 35 on Nov 10 to an hourly peak of 86 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 Hòa Bình lost since 2001?
Since 2001, the area within 10 km of Hòa Bình has lost about 5,740 hectares of forest (about 8,000 football pitches): 34% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 533 hectares (9.3%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 248 hectares a year in 2021–2025, down from 583 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Hòa Bình shrank from about 24,100 hectares to 23,500 hectares, a net loss of about 618 hectares (−2.6%). New forest grew on about 460 hectares, but 1,080 hectares were lost.
What is the tree count in Hòa Bình?
Hòa Bình has an estimated 131,973 trees across the 11.02 km² of land measured — 47.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Hòa Bình need?
Hòa Bình has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Hòa Bình'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 Hoa Binh; the tree count is an estimate derived from that cover.
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