City report · Ninh Binh, Vietnam
Hoa Lư Air quality today
Air quality in Hoa Lư currently reads AQI 42 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 42
Good
- PM2.5, fine particles (µg/m³)
- 8.7
- tree cover
- 27.5%
- trees in this area
- 82.8K
- more trees needed
- 7.5K
Measured across a 2 km radius around Đinh Tiên Hoàng, Vân Giang, Hoa Lư, Ninh Bình, Vietnam (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hoa Lư · AQI 42 (Good)
Hoa Lư's tree count comes to 82,765 trees across 12.04 km² of land, 2 points below the 30% tree-cover level considered healthy for this area, so roughly 7,524 more trees would close the gap.
Air quality detail
Air quality in Hoa Lư today: AQI 42, Good
Main pollutant: PM2.5 · Observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 105 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 6 station cities within 105 km, e.g. Duong Hao and Gia Lâm
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.7
PM10
16.2
NO₂
15.5
O₃
84.0
SO₂
18.2
CO
327.0
- 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 Hoa Lư's daily AQI at 72 on average, from 55 on Nov 9 to an hourly peak of 168 on Nov 4.
Where Hoa Lư stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hoa Lư: Below target
27.5% tree cover against a 30% healthy-neighborhood target, across 12.04 km² of land.
Trees in this area
82,765
Target trees
90,289
More trees needed
7,524
CO₂ if planted / yr
165.5 t
Deforestation · 2001–2025
How much forest has Hoa Lư lost?
Since 2001, the area within 10 km of Hoa Lư has lost about 66 hectares of forest (about 92 football pitches): 2.6% of the forest it had in 2000. Most of it (75%) was deforestation, forest cleared for good, mainly for mining and energy.
2017: satellite photo from December 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 66 haabout 92 football pitches
- Share of its forest
- 2.6%of what there was in 2000
- Cleared for good
- 50 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 16 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 | 2 ha | 2 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 2 ha | 2 ha | 4 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | 1 ha |
| 2008 | under 1 ha | 1 ha | 2 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | 2 ha | under 1 ha | 3 ha |
| 2011 | 3 ha | 2 ha | 4 ha |
| 2012 | under 1 ha | under 1 ha | 2 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 | 2 ha |
| 2016 | 6 ha | 1 ha | 7 ha |
| 2017 | 14 ha | 2 ha | 16 ha |
| 2018 | 5 ha | under 1 ha | 6 ha |
| 2019 | 4 ha | under 1 ha | 4 ha |
| 2020 | 2 ha | under 1 ha | 2 ha |
| 2021 | 3 ha | under 1 ha | 3 ha |
| 2022 | 1 ha | under 1 ha | 2 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | 3 ha | under 1 ha | 3 ha |
What is causing deforestation around Hoa Lư?
- Mining and energycleared for good58% · 38 ha
- Farms, pasture and plantationscleared for good14% · 9 ha
- Loggingcan grow back7.5% · 5 ha
Also: storms, floods and other natural causes, 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
- 3,660 ha
- Forest in 2020
- 4,000 ha
- Overall change
- +341 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hoa Lư grew from about 3,660 hectares to 4,000 hectares, a net gain of about 341 hectares (+9.3%). New forest grew on about 460 hectares, while 119 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 Hoa Lư
What is the air quality (AQI) in Hoa Lư right now?
The latest reading for Hoa Lư shows an AQI of 42 (Good), observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 105 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hoa Lư 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 Hoa Lư been like this week?
Over the last 7 days, the CAMS air-quality model put Hoa Lư's daily AQI at 72 on average, from 55 on Nov 9 to an hourly peak of 168 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Hoa Lư lost since 2001?
Since 2001, the area within 10 km of Hoa Lư has lost about 66 hectares of forest (about 92 football pitches): 2.6% of the forest it had in 2000. Most of it (75%) was deforestation, forest cleared for good, mainly for mining and energy. Comparing satellite maps from 2000 and 2020, the forest around Hoa Lư grew from about 3,660 hectares to 4,000 hectares, a net gain of about 341 hectares (+9.3%). New forest grew on about 460 hectares, while 119 hectares were lost.
What is the tree count in Hoa Lư?
Hoa Lư has an estimated 82,765 trees across the 12.04 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 Hoa Lư need?
Hoa Lư needs roughly 7,524 more trees to close a 2-point shortfall against its 30% tree-cover target — about 165.5 t of extra CO₂ absorbed per year once grown.
How are Hoa Lư'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 Đinh Tiên Hoàng; the tree count is an estimate derived from that cover.
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