City report · An Giang, Vietnam
Hà Tiên Air quality today
Air quality in Hà Tiên currently reads AQI 10 (Good): Air quality is satisfactory for everyone.
AQI 10
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 1.5
- tree cover
- 46.5%
- trees in this area
- 110K
- more trees needed
- 0
Measured across a 2 km radius around Ha Tien, An Giang, Vietnam (12.57 km²), from a satellite image of Jun 28, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hà Tiên · AQI 10 (Good)
Hà Tiên's tree count comes to 110,001 trees across 9.47 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Hà Tiên today: AQI 10, Good
Main pollutant: PM2.5 · Observed Nov 10, 23:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 250 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 250 km, e.g. Phnom Penh and Ho Chi Minh City
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.5
PM10
6.8
NO₂
4.9
O₃
82.0
SO₂
3.8
CO
230.0
- 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 Hà Tiên's daily AQI at 52 on average, from 40 on Nov 10 to an hourly peak of 76 on Nov 6.
Where Hà Tiên stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hà Tiên: Healthy tree cover
46.5% tree cover against a 30% healthy-neighborhood target, across 9.47 km² of land.
Trees in this area
110,001
Target trees
110,001
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Hà Tiên lost?
Since 2001, the area within 10 km of Hà Tiên has lost about 232 hectares of forest (about 320 football pitches): 10% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from March 2017 of a 5 × 5 km area about 5 km southeast of the city center.
- Forest lost since 2001
- 232 haabout 320 football pitches
- Share of its forest
- 10%of what there was in 2000
- Cleared for good
- 203 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 57 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 | 55 ha | 3 ha | 57 ha |
| 2002 | 5 ha | under 1 ha | 5 ha |
| 2003 | 11 ha | 1 ha | 12 ha |
| 2004 | 11 ha | 2 ha | 13 ha |
| 2005 | 6 ha | under 1 ha | 6 ha |
| 2006 | 12 ha | under 1 ha | 12 ha |
| 2007 | 9 ha | 3 ha | 11 ha |
| 2008 | 6 ha | under 1 ha | 7 ha |
| 2009 | 4 ha | under 1 ha | 4 ha |
| 2010 | 3 ha | under 1 ha | 3 ha |
| 2011 | 2 ha | under 1 ha | 3 ha |
| 2012 | 4 ha | under 1 ha | 4 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 3 ha | under 1 ha | 4 ha |
| 2017 | 18 ha | 3 ha | 20 ha |
| 2018 | 12 ha | 3 ha | 15 ha |
| 2019 | 7 ha | 2 ha | 9 ha |
| 2020 | 4 ha | under 1 ha | 4 ha |
| 2021 | 7 ha | under 1 ha | 7 ha |
| 2022 | 7 ha | 2 ha | 9 ha |
| 2023 | 10 ha | 7 ha | 17 ha |
| 2024 | 5 ha | under 1 ha | 5 ha |
| 2025 | 3 ha | under 1 ha | 4 ha |
What is causing deforestation around Hà Tiên?
- Farms, pasture and plantationscleared for good42% · 98 ha
- Towns and roadscleared for good41% · 94 ha
- Storms, floods and other natural causescan grow back8.6% · 20 ha
Also: mining and energy, 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
- 1,220 ha
- Forest in 2020
- 1,250 ha
- Overall change
- +30 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hà Tiên grew from about 1,220 hectares to 1,250 hectares, a net gain of about 30 hectares (+2.5%). New forest grew on about 90 hectares, while 60 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 Hà Tiên
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Hà Tiên with anywhere
This place
Hà Tiên
Use this data
Put Hà Tiên's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Hà Tiên
What is the air quality (AQI) in Hà Tiên right now?
The latest reading for Hà Tiên shows an AQI of 10 (Good), observed Nov 10, 23:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 250 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hà Tiên today?
At AQI 10 (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 Hà Tiên been like this week?
Over the last 7 days, the CAMS air-quality model put Hà Tiên's daily AQI at 52 on average, from 40 on Nov 10 to an hourly peak of 76 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 Hà Tiên lost since 2001?
Since 2001, the area within 10 km of Hà Tiên has lost about 232 hectares of forest (about 320 football pitches): 10% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Hà Tiên grew from about 1,220 hectares to 1,250 hectares, a net gain of about 30 hectares (+2.5%). New forest grew on about 90 hectares, while 60 hectares were lost.
What is the tree count in Hà Tiên?
Hà Tiên has an estimated 110,001 trees across the 9.47 km² of land measured — 46.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Hà Tiên need?
Hà Tiên has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Hà Tiên'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 Ha Tien; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address