City report · Thailand
Ubon Ratchathani Air quality today
Air quality in Ubon Ratchathani currently reads AQI 42 (Good): Air quality is satisfactory for everyone.
AQI 42
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.6
- tree cover
- 29.7%
- trees in this area
- 92.9K
- more trees needed
- 939
Measured across a 2 km radius around Ubon Ratchathani, Mueang Ubon Ratchathani District, Ubon Ratchathani, Thailand (12.57 km²), from a satellite image of Jul 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ubon Ratchathani · AQI 42 (Good)
Ubon Ratchathani's tree count comes to 92,932 trees across 12.52 km² of land, 0 points below the 30% tree-cover level considered healthy for this area, so roughly 939 more trees would close the gap.
Air quality detail
Air quality in Ubon Ratchathani today: AQI 42, Good
Main pollutant: PM2.5 · Observed Nov 12, 01:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · OTOP Center, Ubon Ratchathani, 800 m away
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.6
PM10
14.0
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · Air4Thai, Pollution Control Department, Thailand · Air4Thai
- 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 Ubon Ratchathani's daily AQI at 31 on average, from 12 on Nov 10 to an hourly peak of 70 on Nov 6.
Where Ubon Ratchathani stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ubon Ratchathani: Below target
29.7% tree cover against a 30% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
92,932
Target trees
93,871
More trees needed
939
CO₂ if planted / yr
20.7 t
Deforestation · 2001–2025
How much forest has Ubon Ratchathani lost?
Since 2001, the area within 10 km of Ubon Ratchathani has lost about 384 hectares of forest (about 540 football pitches): 16% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from February 2017 of a 5 × 5 km area about 7 km northeast of the city center.
- Forest lost since 2001
- 384 haabout 540 football pitches
- Share of its forest
- 16%of what there was in 2000
- Cleared for good
- 377 hadeforestation: turned into farms, mines or towns
The worst year was 2016, when about 36 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 | 6 ha | under 1 ha | 6 ha |
| 2002 | 6 ha | under 1 ha | 6 ha |
| 2003 | 10 ha | under 1 ha | 10 ha |
| 2004 | 10 ha | under 1 ha | 10 ha |
| 2005 | 8 ha | under 1 ha | 8 ha |
| 2006 | 16 ha | under 1 ha | 17 ha |
| 2007 | 18 ha | under 1 ha | 19 ha |
| 2008 | 7 ha | under 1 ha | 8 ha |
| 2009 | 28 ha | under 1 ha | 28 ha |
| 2010 | 11 ha | under 1 ha | 11 ha |
| 2011 | 10 ha | under 1 ha | 10 ha |
| 2012 | 25 ha | under 1 ha | 26 ha |
| 2013 | 7 ha | under 1 ha | 7 ha |
| 2014 | 15 ha | under 1 ha | 15 ha |
| 2015 | 13 ha | under 1 ha | 13 ha |
| 2016 | 35 ha | under 1 ha | 36 ha |
| 2017 | 18 ha | under 1 ha | 18 ha |
| 2018 | 14 ha | under 1 ha | 14 ha |
| 2019 | 12 ha | 1 ha | 13 ha |
| 2020 | 21 ha | under 1 ha | 21 ha |
| 2021 | 16 ha | under 1 ha | 16 ha |
| 2022 | 23 ha | under 1 ha | 23 ha |
| 2023 | 15 ha | under 1 ha | 16 ha |
| 2024 | 13 ha | under 1 ha | 14 ha |
| 2025 | 20 ha | under 1 ha | 21 ha |
What is causing deforestation around Ubon Ratchathani?
- Towns and roadscleared for good62% · 239 ha
- Farms, pasture and plantationscleared for good34% · 132 ha
- Mining and energycleared for good1.6% · 6 ha
Also: logging, wildfires, 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
- 6,610 ha
- Forest in 2020
- 7,190 ha
- Overall change
- +577 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ubon Ratchathani grew from about 6,610 hectares to 7,190 hectares, a net gain of about 577 hectares (+8.7%). New forest grew on about 963 hectares, while 386 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 Ubon Ratchathani
Same 2 km radius, same index — so they compare directly.
- Pakse102.8 km
Laos
- Tree cover
- 23%
- Air quality
- 11
- Savannakhet148.4 km
Laos
- Tree cover
- 30%
- Air quality
- 87
- Siem Reap234.3 km
Cambodia
- Tree cover
- 32%
- Air quality
- 49
- Thakhèk241.5 km
Laos
- Tree cover
- 50%
- Air quality
- 76
- Khon Kaen254.1 km
Thailand
- Tree cover
- 31%
- Air quality
- 65
- Nakhon Ratchasima296.4 km
Thailand
- Tree cover
- 24%
- Air quality
- 60
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Frequently asked
Questions about Ubon Ratchathani
What is the air quality (AQI) in Ubon Ratchathani right now?
The latest reading for Ubon Ratchathani shows an AQI of 42 (Good), measured Nov 12, 01:00 local time by the OTOP Center, Ubon Ratchathani ground monitoring station, 800 m away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Ubon Ratchathani today?
At AQI 42 (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 Ubon Ratchathani been like this week?
Over the last 7 days, the CAMS air-quality model put Ubon Ratchathani's daily AQI at 31 on average, from 12 on Nov 10 to an hourly peak of 70 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ubon Ratchathani lost since 2001?
Since 2001, the area within 10 km of Ubon Ratchathani has lost about 384 hectares of forest (about 540 football pitches): 16% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Ubon Ratchathani grew from about 6,610 hectares to 7,190 hectares, a net gain of about 577 hectares (+8.7%). New forest grew on about 963 hectares, while 386 hectares were lost.
What is the tree count in Ubon Ratchathani?
Ubon Ratchathani has an estimated 92,932 trees across the 12.52 km² of land measured — 29.7% tree cover, 0 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Ubon Ratchathani need?
Ubon Ratchathani needs roughly 939 more trees to close a 0-point shortfall against its 30% tree-cover target — about 20.7 t of extra CO₂ absorbed per year once grown.
How are Ubon Ratchathani's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Ubon Ratchathani, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Ubon Ratchathani; the tree count is an estimate derived from that cover.
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