Vietnam · Thanh Hóa Province · 3 cities
Air quality in Thanh Hóa Province today The AQI right now, city by city
Right now, Thanh Hóa has the cleanest air of the 3 cities we track in Thanh Hóa Province (AQI 38, Good), and Sầm Sơn the worst (AQI 52, Moderate). Nghi Sơn has the most tree cover, at 46.0% — #25 of 112 cities measured in Vietnam.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
AQI 46
Average right now
Good
- cities tracked
- 3
- average tree cover
- 35.4%
- Vietnam: 35.8%
- worst air now: Sầm Sơn
- 52
- cleanest air now: Thanh Hóa
- 38
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Thanh Hóa Province · average AQI 46
Air quality today across Thanh Hóa Province, city by city
| Thanh Hóa | 38Good | 20.5% | 29.7K | #88 of 112 |
|---|---|---|---|---|
| Nghi Sơn | 49Good | 46.0% | — | #25 of 112 |
| Sầm Sơn | 52Moderate | 39.6% | — | #37 of 112 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Vietnam.
Deforestation · 2001–2025
How much forest has Thanh Hóa Province lost?
Since 2001, Thanh Hóa Province has lost about 125,000 hectares of forest (about 170,000 football pitches): 20% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 14,100 hectares (11%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 125,000 haabout 170,000 football pitches
- Share of its forest
- 20%of what there was in 2000
- Cleared for good
- 14,100 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 220 ha | 699 ha | 919 ha |
| 2002 | 83 ha | 204 ha | 287 ha |
| 2003 | 118 ha | 720 ha | 838 ha |
| 2004 | 326 ha | 737 ha | 1,060 ha |
| 2005 | 963 ha | 2,670 ha | 3,630 ha |
| 2006 | 114 ha | 446 ha | 560 ha |
| 2007 | 348 ha | 1,630 ha | 1,980 ha |
| 2008 | 659 ha | 1,570 ha | 2,220 ha |
| 2009 | 452 ha | 1,880 ha | 2,330 ha |
| 2010 | 318 ha | 1,750 ha | 2,070 ha |
| 2011 | 1,590 ha | 4,200 ha | 5,780 ha |
| 2012 | 717 ha | 2,430 ha | 3,140 ha |
| 2013 | 469 ha | 3,450 ha | 3,920 ha |
| 2014 | 380 ha | 4,820 ha | 5,200 ha |
| 2015 | 573 ha | 8,180 ha | 8,760 ha |
| 2016 | 935 ha | 12,800 ha | 13,700 ha |
| 2017 | 836 ha | 10,300 ha | 11,100 ha |
| 2018 | 637 ha | 7,800 ha | 8,440 ha |
| 2019 | 462 ha | 7,180 ha | 7,640 ha |
| 2020 | 500 ha | 8,110 ha | 8,610 ha |
| 2021 | 613 ha | 8,220 ha | 8,830 ha |
| 2022 | 703 ha | 7,070 ha | 7,770 ha |
| 2023 | 648 ha | 5,580 ha | 6,230 ha |
| 2024 | 784 ha | 4,520 ha | 5,300 ha |
| 2025 | 647 ha | 3,960 ha | 4,600 ha |
Forest loss is slowing down: about 6,550 hectares a year in 2021–2025, down from 9,900 hectares a year in 2016–2020. The worst year was 2016, when about 13,700 hectares of forest were lost.
What is causing deforestation in Thanh Hóa Province?
- Loggingcan grow back75% · 93,900 ha
- Shifting farmingcan grow back13% · 16,000 ha
- Farms, pasture and plantationscleared for good9.9% · 12,300 ha
Also: mining and energy, towns and roads, storms, floods and other natural causes, wildfires, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
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