City report · Gia Lai, Vietnam
Qui Nhon Air quality today
Air quality in Qui Nhon currently reads AQI 39 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 39
Good
- PM2.5, fine particles (µg/m³)
- 5.8
- tree cover
- 28.2%
- trees in this area
- 61.7K
- more trees needed
- 3.9K
Measured across a 2 km radius around Quy Nhon, Gia Lai, Vietnam (12.57 km²), from a satellite image of Jul 20, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Qui Nhon · AQI 39 (Good)
Qui Nhon's tree count comes to 61,749 trees across 8.76 km² of land, 2 points below the 30% tree-cover level considered healthy for this area, so roughly 3,941 more trees would close the gap.
Air quality detail
Air quality in Qui Nhon today: AQI 39, Good
Main pollutant: PM2.5 · Observed Nov 11, 02:00 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
5.8
PM10
9.0
NO₂
2.0
O₃
91.0
SO₂
1.0
CO
228.0
- 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 Qui Nhon's daily AQI at 42 on average, from 27 on Nov 7 to an hourly peak of 60 on Nov 9.
Where Qui Nhon stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Qui Nhon: Below target
28.2% tree cover against a 30% healthy-neighborhood target, across 8.76 km² of land.
Trees in this area
61,749
Target trees
65,690
More trees needed
3,941
CO₂ if planted / yr
86.7 t
Deforestation · 2001–2025
How much forest has Qui Nhon lost?
Since 2001, the area within 10 km of Qui Nhon has lost about 1,990 hectares of forest (about 2,800 football pitches): 46% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 212 hectares (11%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 1,990 haabout 2,800 football pitches
- Share of its forest
- 46%of what there was in 2000
- Cleared for good
- 212 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 39 hectares a year in 2021–2025, down from 123 hectares a year in 2016–2020. The worst year was 2014, when about 165 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 | 13 ha | 14 ha |
| 2002 | 1 ha | 22 ha | 23 ha |
| 2003 | under 1 ha | 29 ha | 29 ha |
| 2004 | 5 ha | 37 ha | 43 ha |
| 2005 | 7 ha | 16 ha | 22 ha |
| 2006 | 9 ha | 52 ha | 61 ha |
| 2007 | 15 ha | 75 ha | 90 ha |
| 2008 | 15 ha | 46 ha | 61 ha |
| 2009 | 12 ha | 146 ha | 157 ha |
| 2010 | 7 ha | 62 ha | 69 ha |
| 2011 | 4 ha | 89 ha | 93 ha |
| 2012 | 8 ha | 103 ha | 111 ha |
| 2013 | 2 ha | 80 ha | 82 ha |
| 2014 | 31 ha | 134 ha | 165 ha |
| 2015 | 12 ha | 146 ha | 158 ha |
| 2016 | 9 ha | 134 ha | 143 ha |
| 2017 | 6 ha | 155 ha | 161 ha |
| 2018 | 1 ha | 122 ha | 123 ha |
| 2019 | 15 ha | 81 ha | 96 ha |
| 2020 | 10 ha | 80 ha | 90 ha |
| 2021 | 33 ha | 42 ha | 75 ha |
| 2022 | 5 ha | 38 ha | 43 ha |
| 2023 | 1 ha | 32 ha | 33 ha |
| 2024 | 2 ha | 20 ha | 22 ha |
| 2025 | 2 ha | 21 ha | 23 ha |
What is causing deforestation around Qui Nhon?
- Loggingcan grow back89% · 1,770 ha
- Mining and energycleared for good6.1% · 121 ha
- Farms, pasture and plantationscleared for good2.8% · 57 ha
Also: towns and roads, wildfires, 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
- 6,810 ha
- Forest in 2020
- 6,060 ha
- Overall change
- −748 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Qui Nhon shrank from about 6,810 hectares to 6,060 hectares, a net loss of about 748 hectares (−11%). New forest grew on about 404 hectares, but 1,150 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 Qui Nhon
What is the air quality (AQI) in Qui Nhon right now?
The latest reading for Qui Nhon shows an AQI of 39 (Good), observed Nov 11, 02:00 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 Qui Nhon today?
At AQI 39 (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 Qui Nhon been like this week?
Over the last 7 days, the CAMS air-quality model put Qui Nhon's daily AQI at 42 on average, from 27 on Nov 7 to an hourly peak of 60 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Qui Nhon lost since 2001?
Since 2001, the area within 10 km of Qui Nhon has lost about 1,990 hectares of forest (about 2,800 football pitches): 46% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 212 hectares (11%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 39 hectares a year in 2021–2025, down from 123 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Qui Nhon shrank from about 6,810 hectares to 6,060 hectares, a net loss of about 748 hectares (−11%). New forest grew on about 404 hectares, but 1,150 hectares were lost.
What is the tree count in Qui Nhon?
Qui Nhon has an estimated 61,749 trees across the 8.76 km² of land measured — 28.2% tree cover, 2 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Qui Nhon need?
Qui Nhon needs roughly 3,941 more trees to close a 2-point shortfall against its 30% tree-cover target — about 86.7 t of extra CO₂ absorbed per year once grown.
How are Qui Nhon'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 Quy Nhon; the tree count is an estimate derived from that cover.
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