City report · Khanh Hoa, Vietnam
Nha Trang Air quality today
Air quality in Nha Trang currently reads AQI 26 (Good): Air quality is satisfactory for everyone.
AQI 26
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 4.2
- tree cover
- 10.7%
- trees in this area
- 22.5K
- more trees needed
- 40.6K
Measured across a 2 km radius around Nha Trang, Khanh Hoa, Vietnam (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nha Trang · AQI 26 (Good)
Nha Trang's tree count comes to 22,522 trees across 8.42 km² of land, 19 points below the 30% tree-cover level considered healthy for this area, so roughly 40,624 more trees would close the gap.
Air quality detail
Air quality in Nha Trang today: AQI 26, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.2
PM10
6.1
NO₂
1.3
O₃
96.0
SO₂
1.2
CO
191.0
- 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 Nha Trang's daily AQI at 41 on average, from 36 on Nov 11 to an hourly peak of 56 on Nov 10.
Where Nha Trang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nha Trang: Critically low
10.7% tree cover against a 30% healthy-neighborhood target, across 8.42 km² of land.
Trees in this area
22,522
Target trees
63,146
More trees needed
40,624
CO₂ if planted / yr
893.7 t
Deforestation · 2001–2025
How much forest has Nha Trang lost?
Since 2001, the area within 10 km of Nha Trang has lost about 1,980 hectares of forest (about 2,800 football pitches): 27% of the forest it had in 2000. Most of it (77%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from April 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 1,980 haabout 2,800 football pitches
- Share of its forest
- 27%of what there was in 2000
- Cleared for good
- 1,530 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 63 hectares a year in 2021–2025, down from 150 hectares a year in 2016–2020. The worst year was 2015, when about 260 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 | 12 ha | 3 ha | 15 ha |
| 2002 | 24 ha | 11 ha | 35 ha |
| 2003 | 3 ha | 3 ha | 6 ha |
| 2004 | 15 ha | 11 ha | 25 ha |
| 2005 | 18 ha | 4 ha | 22 ha |
| 2006 | 49 ha | 18 ha | 67 ha |
| 2007 | 28 ha | 3 ha | 31 ha |
| 2008 | 32 ha | 1 ha | 34 ha |
| 2009 | 55 ha | 7 ha | 61 ha |
| 2010 | 82 ha | 7 ha | 90 ha |
| 2011 | 50 ha | 14 ha | 64 ha |
| 2012 | 59 ha | 7 ha | 66 ha |
| 2013 | 24 ha | 4 ha | 28 ha |
| 2014 | 93 ha | 21 ha | 113 ha |
| 2015 | 137 ha | 123 ha | 260 ha |
| 2016 | 116 ha | 32 ha | 148 ha |
| 2017 | 122 ha | 33 ha | 155 ha |
| 2018 | 181 ha | 75 ha | 256 ha |
| 2019 | 98 ha | 30 ha | 128 ha |
| 2020 | 54 ha | 8 ha | 63 ha |
| 2021 | 46 ha | 8 ha | 53 ha |
| 2022 | 82 ha | 6 ha | 88 ha |
| 2023 | 38 ha | 6 ha | 44 ha |
| 2024 | 58 ha | 6 ha | 65 ha |
| 2025 | 56 ha | 10 ha | 66 ha |
What is causing deforestation around Nha Trang?
- Farms, pasture and plantationscleared for good35% · 684 ha
- Towns and roadscleared for good28% · 557 ha
- Loggingcan grow back21% · 409 ha
Also: mining and energy, wildfires, storms, floods and other natural causes, 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
- 9,740 ha
- Forest in 2020
- 7,990 ha
- Overall change
- −1,760 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nha Trang shrank from about 9,740 hectares to 7,990 hectares, a net loss of about 1,760 hectares (−18%). New forest grew on about 366 hectares, but 2,120 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 Nha Trang
What is the air quality (AQI) in Nha Trang right now?
The latest reading for Nha Trang shows an AQI of 26 (Good), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Nha Trang today?
At AQI 26 (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 Nha Trang been like this week?
Over the last 7 days, the CAMS air-quality model put Nha Trang's daily AQI at 41 on average, from 36 on Nov 11 to an hourly peak of 56 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 Nha Trang lost since 2001?
Since 2001, the area within 10 km of Nha Trang has lost about 1,980 hectares of forest (about 2,800 football pitches): 27% of the forest it had in 2000. Most of it (77%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 63 hectares a year in 2021–2025, down from 150 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Nha Trang shrank from about 9,740 hectares to 7,990 hectares, a net loss of about 1,760 hectares (−18%). New forest grew on about 366 hectares, but 2,120 hectares were lost.
What is the tree count in Nha Trang?
Nha Trang has an estimated 22,522 trees across the 8.42 km² of land measured — 10.7% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nha Trang need?
Nha Trang needs roughly 40,624 more trees to close a 19-point shortfall against its 30% tree-cover target — about 893.7 t of extra CO₂ absorbed per year once grown.
How are Nha Trang'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 Nha Trang; the tree count is an estimate derived from that cover.
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