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Air quality now: Hạ Long

Vietnam · Quảng Ninh · 4 cities

Air quality in Quảng Ninh today The AQI right now, city by city

Right now, Thị Trấn Đông Triều has the cleanest air of the 4 cities we track in Quảng Ninh (AQI 42, Good), and Cẩm Phả the worst (AQI 62, Moderate). Hạ Long has the most tree cover, at 37.1% — #44 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 54

Average right now

Moderate

US EPA index, across 4 cities
cities tracked
4
average tree cover
35.2%
Vietnam: 35.8%
worst air now: Cẩm Phả
62
cleanest air now: Thị Trấn Đông Triều
42

Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.

Quảng Ninh · average AQI 54

Air quality today across Quảng Ninh, city by city

Current air quality and tree cover for cities in Quảng Ninh, Vietnam
Hạ Long54Moderate37.1%—#44 of 112
Thị Trấn Đông Triều42Good32.3%—#59 of 112
Cẩm Phả62Moderate34.8%—#50 of 112
Móng Cái56Moderate36.5%—#46 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 Quảng Ninh lost?

Since 2001, Quảng Ninh has lost about 159,000 hectares of forest (about 220,000 football pitches): 47% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 8,390 hectares (5.3%) was deforestation: forest cleared for good for farms, mines or towns.

Forest lost since 2001
159,000 haabout 220,000 football pitches
Share of its forest
47%of what there was in 2000
Cleared for good
8,390 hadeforestation: turned into farms, mines or towns
Forest lost each year in Quảng Ninh, 2001–2025

Hectares of forest lost each year

Forest lost each year in Quảng Ninh, 2001–2025. Use the left and right arrow keys to read each year.13.3K

Show the figures as a table
Forest lost each year in Quảng Ninh, 2001–2025
YearCleared for goodCan grow backTotal
2001163 ha1,130 ha1,300 ha
200249 ha361 ha410 ha
200387 ha644 ha731 ha
2004138 ha1,380 ha1,520 ha
2005167 ha1,470 ha1,640 ha
2006120 ha1,750 ha1,870 ha
2007369 ha3,390 ha3,760 ha
2008128 ha1,800 ha1,930 ha
2009377 ha3,100 ha3,480 ha
2010190 ha2,580 ha2,770 ha
2011132 ha2,100 ha2,230 ha
2012246 ha4,520 ha4,770 ha
2013246 ha7,600 ha7,840 ha
2014300 ha10,400 ha10,700 ha
2015254 ha5,740 ha6,000 ha
2016659 ha12,600 ha13,300 ha
2017661 ha12,000 ha12,700 ha
2018526 ha12,000 ha12,500 ha
2019500 ha10,500 ha11,000 ha
2020414 ha12,100 ha12,500 ha
2021317 ha9,960 ha10,300 ha
2022487 ha9,650 ha10,100 ha
2023398 ha7,000 ha7,400 ha
2024765 ha10,100 ha10,900 ha
2025693 ha6,330 ha7,020 ha

Forest loss is slowing down: about 9,150 hectares a year in 2021–2025, down from 12,400 hectares a year in 2016–2020. The worst year was 2016, when about 13,300 hectares of forest were lost.

What is causing deforestation in Quảng Ninh?

  • Loggingcan grow back80% · 127,000 ha
  • Shifting farmingcan grow back14% · 22,800 ha
  • Farms, pasture and plantationscleared for good3% · 4,710 ha

Also: mining and energy, towns and roads, wildfires, storms, floods and other natural causes, 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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