City report · Quang Tri, Vietnam
Ba Đồn Air quality today
Air quality in Ba Đồn currently reads AQI 53 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 53
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 10.3
- tree cover
- 27.5%
- trees in this area
- 64.1K
- more trees needed
- 5.8K
Measured across a 2 km radius around Ba Don, Quảng Bình, Vietnam (12.57 km²), from a satellite image of Aug 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ba Đồn · AQI 53 (Moderate)
Ba Đồn's tree count comes to 64,104 trees across 9.33 km² of land, 2 points below the 30% tree-cover level considered healthy for this area, so roughly 5,828 more trees would close the gap.
Air quality detail
Air quality in Ba Đồn today: AQI 53, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 225 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 4 station cities within 225 km, e.g. Song Tri and Thakhek
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.3
PM10
15.1
NO₂
6.5
O₃
90.0
SO₂
5.7
CO
313.0
- 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 Ba Đồn's daily AQI at 40 on average, from 31 on Nov 8 to an hourly peak of 59 on Nov 10.
Where Ba Đồn stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ba Đồn: Below target
27.5% tree cover against a 30% healthy-neighborhood target, across 9.33 km² of land.
Trees in this area
64,104
Target trees
69,932
More trees needed
5,828
CO₂ if planted / yr
128.2 t
Deforestation · 2001–2025
How much forest has Ba Đồn lost?
Since 2001, the area within 10 km of Ba Đồn has lost about 1,510 hectares of forest (about 2,100 football pitches): 66% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 13 hectares (under 1%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from May 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 1,510 haabout 2,100 football pitches
- Share of its forest
- 66%of what there was in 2000
- Cleared for good
- 13 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 62 hectares a year in 2021–2025, down from 122 hectares a year in 2016–2020. The worst year was 2014, when about 202 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 | 12 ha | 12 ha |
| 2002 | under 1 ha | 32 ha | 32 ha |
| 2003 | under 1 ha | 19 ha | 19 ha |
| 2004 | under 1 ha | 3 ha | 3 ha |
| 2005 | under 1 ha | 11 ha | 11 ha |
| 2006 | 1 ha | 16 ha | 17 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | 5 ha | 5 ha |
| 2009 | under 1 ha | 114 ha | 114 ha |
| 2010 | under 1 ha | 14 ha | 14 ha |
| 2011 | under 1 ha | 7 ha | 7 ha |
| 2012 | under 1 ha | 21 ha | 21 ha |
| 2013 | under 1 ha | 45 ha | 45 ha |
| 2014 | under 1 ha | 202 ha | 202 ha |
| 2015 | under 1 ha | 86 ha | 86 ha |
| 2016 | under 1 ha | 66 ha | 67 ha |
| 2017 | under 1 ha | 104 ha | 104 ha |
| 2018 | 2 ha | 101 ha | 103 ha |
| 2019 | under 1 ha | 194 ha | 194 ha |
| 2020 | 3 ha | 137 ha | 140 ha |
| 2021 | under 1 ha | 103 ha | 103 ha |
| 2022 | under 1 ha | 64 ha | 64 ha |
| 2023 | 2 ha | 53 ha | 55 ha |
| 2024 | 3 ha | 30 ha | 33 ha |
| 2025 | under 1 ha | 56 ha | 56 ha |
What is causing deforestation around Ba Đồn?
- Loggingcan grow back99% · 1,490 ha
Also: farms, pasture and plantations, 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
- 5,320 ha
- Forest in 2020
- 5,000 ha
- Overall change
- −314 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ba Đồn shrank from about 5,320 hectares to 5,000 hectares, a net loss of about 314 hectares (−5.9%). New forest grew on about 308 hectares, but 623 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 Ba Đồn
What is the air quality (AQI) in Ba Đồn right now?
The latest reading for Ba Đồn shows an AQI of 53 (Moderate), observed Nov 11, 18:00 local time via Open-Meteo / CAMS, corrected with 4 ground-station cities within 225 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 Ba Đồn today?
At AQI 53 (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 Ba Đồn been like this week?
Over the last 7 days, the CAMS air-quality model put Ba Đồn's daily AQI at 40 on average, from 31 on Nov 8 to an hourly peak of 59 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ba Đồn lost since 2001?
Since 2001, the area within 10 km of Ba Đồn has lost about 1,510 hectares of forest (about 2,100 football pitches): 66% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 13 hectares (under 1%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 62 hectares a year in 2021–2025, down from 122 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Ba Đồn shrank from about 5,320 hectares to 5,000 hectares, a net loss of about 314 hectares (−5.9%). New forest grew on about 308 hectares, but 623 hectares were lost.
What is the tree count in Ba Đồn?
Ba Đồn has an estimated 64,104 trees across the 9.33 km² of land measured — 27.5% tree cover, 2 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Ba Đồn need?
Ba Đồn needs roughly 5,828 more trees to close a 2-point shortfall against its 30% tree-cover target — about 128.2 t of extra CO₂ absorbed per year once grown.
How are Ba Đồn'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 Don; the tree count is an estimate derived from that cover.
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