City report · Ninh Binh, Vietnam
Nam Định Air quality today
Air quality in Nam Định currently reads AQI 56 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 56
Moderate
- PM2.5, fine particles (µg/m³)
- 10.1
- tree cover
- 29.0%
- trees in this area
- 87.2K
- more trees needed
- 3.0K
Measured across a 2 km radius around Nam Dinh, Ninh Binh, Vietnam (12.57 km²), from a satellite image of Sep 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nam Định · AQI 56 (Moderate)
Nam Định's tree count comes to 87,189 trees across 12.03 km² of land, 1 points below the 30% tree-cover level considered healthy for this area, so roughly 3,007 more trees would close the gap.
Air quality detail
Air quality in Nam Định today: AQI 56, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 85 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 6 station cities within 85 km, e.g. Duong Hao and Thuan Thanh
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.1
PM10
19.0
NO₂
14.9
O₃
86.0
SO₂
28.8
CO
312.0
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Nam Định's daily AQI at 70 on average, from 55 on Nov 9 to an hourly peak of 127 on Nov 5.
Where Nam Định stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nam Định: Below target
29.0% tree cover against a 30% healthy-neighborhood target, across 12.03 km² of land.
Trees in this area
87,189
Target trees
90,196
More trees needed
3,007
CO₂ if planted / yr
66.2 t
Deforestation · 2001–2025
How much forest has Nam Định lost?
Since 2001, the area within 10 km of Nam Định has lost about 10 hectares of forest (about 13 football pitches): 7.4% of the forest it had in 2000. The biggest cause was towns and roads (13%). About 2 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from December 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 10 haabout 13 football pitches
- Share of its forest
- 7.4%of what there was in 2000
- Cleared for good
- 2 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 2 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 | 1 ha | 2 ha |
| 2002 | under 1 ha | 2 ha | 2 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | 1 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | 1 ha | 1 ha |
| 2010 | under 1 ha | under 1 ha | 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 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 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Nam Định?
- Towns and roadscleared for good13% · 1 ha
- Farms, pasture and plantationscleared for good12% · 1 ha
- Unknown causescause unknown76% · 7 ha
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
- 1,780 ha
- Forest in 2020
- 2,120 ha
- Overall change
- +340 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nam Định grew from about 1,780 hectares to 2,120 hectares, a net gain of about 340 hectares (+19%). New forest grew on about 345 hectares, while 4 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 Nam Định
What is the air quality (AQI) in Nam Định right now?
The latest reading for Nam Định shows an AQI of 56 (Moderate), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 6 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Nam Định today?
At AQI 56 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Nam Định been like this week?
Over the last 7 days, the CAMS air-quality model put Nam Định's daily AQI at 70 on average, from 55 on Nov 9 to an hourly peak of 127 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Nam Định lost since 2001?
Since 2001, the area within 10 km of Nam Định has lost about 10 hectares of forest (about 13 football pitches): 7.4% of the forest it had in 2000. The biggest cause was towns and roads (13%). About 2 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Nam Định grew from about 1,780 hectares to 2,120 hectares, a net gain of about 340 hectares (+19%). New forest grew on about 345 hectares, while 4 hectares were lost.
What is the tree count in Nam Định?
Nam Định has an estimated 87,189 trees across the 12.03 km² of land measured — 29.0% tree cover, 1 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nam Định need?
Nam Định needs roughly 3,007 more trees to close a 1-point shortfall against its 30% tree-cover target — about 66.2 t of extra CO₂ absorbed per year once grown.
How are Nam Định'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 Nam Dinh; the tree count is an estimate derived from that cover.
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