City report · Quảng Ninh, Vietnam
Móng Cái Air quality today
Air quality in Móng Cái currently reads AQI 56 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 56
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 12.2
- tree cover
- 36.5%
- trees in this area
- 111K
- more trees needed
- 0
Measured across a 2 km radius around Mong Cai 1, Quang Ninh, Vietnam (12.57 km²), from a satellite image of Sep 21, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Móng Cái · AQI 56 (Moderate)
Móng Cái's tree count comes to 110,769 trees across 12.14 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Móng Cái today: AQI 56, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 105 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 105 km, e.g. Fangchenggang and Qinzhou
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
12.2
PM10
5.6
NO₂
2.3
O₃
102.0
SO₂
5.7
CO
224.0
- 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 Móng Cái's daily AQI at 39 on average, from 21 on Nov 11 to an hourly peak of 69 on Nov 5.
Where Móng Cái stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Móng Cái: Healthy tree cover
36.5% tree cover against a 30% healthy-neighborhood target, across 12.14 km² of land.
Trees in this area
110,769
Target trees
110,769
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Móng Cái lost?
Since 2001, the area within 10 km of Móng Cái has lost about 2,090 hectares of forest (about 2,900 football pitches): 37% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 528 hectares (25%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 2,090 haabout 2,900 football pitches
- Share of its forest
- 37%of what there was in 2000
- Cleared for good
- 528 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 169 hectares a year in 2021–2025, up from 89 hectares a year in 2016–2020. The worst year was 2025, when about 262 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 | 12 ha | 6 ha | 19 ha |
| 2002 | 3 ha | 15 ha | 17 ha |
| 2003 | 4 ha | 5 ha | 8 ha |
| 2004 | 28 ha | 33 ha | 61 ha |
| 2005 | 36 ha | 59 ha | 95 ha |
| 2006 | 34 ha | 64 ha | 98 ha |
| 2007 | 33 ha | 111 ha | 144 ha |
| 2008 | 30 ha | 15 ha | 45 ha |
| 2009 | 7 ha | 68 ha | 75 ha |
| 2010 | 31 ha | 21 ha | 53 ha |
| 2011 | under 1 ha | 4 ha | 5 ha |
| 2012 | 27 ha | 9 ha | 36 ha |
| 2013 | 11 ha | 22 ha | 33 ha |
| 2014 | 12 ha | 42 ha | 54 ha |
| 2015 | 39 ha | 21 ha | 60 ha |
| 2016 | 14 ha | 21 ha | 35 ha |
| 2017 | 24 ha | 29 ha | 52 ha |
| 2018 | 33 ha | 58 ha | 91 ha |
| 2019 | 48 ha | 94 ha | 142 ha |
| 2020 | 52 ha | 72 ha | 124 ha |
| 2021 | 9 ha | 132 ha | 141 ha |
| 2022 | 4 ha | 194 ha | 198 ha |
| 2023 | 3 ha | 154 ha | 157 ha |
| 2024 | 17 ha | 70 ha | 86 ha |
| 2025 | 16 ha | 246 ha | 262 ha |
What is causing deforestation around Móng Cái?
- Loggingcan grow back74% · 1,550 ha
- Towns and roadscleared for good15% · 315 ha
- Mining and energycleared for good5.9% · 123 ha
Also: farms, pasture and plantations, 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.
Forest gained and lost, 2000–2020
- Forest in 2000
- 8,230 ha
- Forest in 2020
- 6,870 ha
- Overall change
- −1,350 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Móng Cái shrank from about 8,230 hectares to 6,870 hectares, a net loss of about 1,350 hectares (−16%). New forest grew on about 149 hectares, but 1,500 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 Móng Cái
What is the air quality (AQI) in Móng Cái right now?
The latest reading for Móng Cái shows an AQI of 56 (Moderate), observed Nov 11, 11:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 105 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 Móng Cái 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 Móng Cái been like this week?
Over the last 7 days, the CAMS air-quality model put Móng Cái's daily AQI at 39 on average, from 21 on Nov 11 to an hourly peak of 69 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 Móng Cái lost since 2001?
Since 2001, the area within 10 km of Móng Cái has lost about 2,090 hectares of forest (about 2,900 football pitches): 37% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 528 hectares (25%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is speeding up: about 169 hectares a year in 2021–2025, up from 89 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Móng Cái shrank from about 8,230 hectares to 6,870 hectares, a net loss of about 1,350 hectares (−16%). New forest grew on about 149 hectares, but 1,500 hectares were lost.
What is the tree count in Móng Cái?
Móng Cái has an estimated 110,769 trees across the 12.14 km² of land measured — 36.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Móng Cái need?
Móng Cái has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Móng Cái'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 Mong Cai 1; the tree count is an estimate derived from that cover.
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