Skip to content
Airleaf
Shop

City report · Phu Tho, Vietnam

Phúc Yên Air quality today

Air quality in Phúc Yên currently reads AQI 119 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.

Air quality right now

AQI 119

Unhealthy for sensitive groups

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
42.8
tree cover
39.3%
trees in this area
123K
more trees needed
0

Measured across a 2 km radius around Phuc Yen, Phu Tho, Vietnam (12.57 km²), from a satellite image of Aug 10, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Phúc Yên · AQI 119 (Unhealthy for sensitive groups)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Aug 10, 2026

Phúc Yên's tree count comes to 122,971 trees across 12.52 km² of land, already at or above the 35% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Phúc Yên today: AQI 119, Unhealthy for sensitive groups

Main pollutant: PM2.5 · Observed Nov 11, 21:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.

Ground station · United Nations International School of Hanoi, Vietnam (Trường Quốc tế Liên Hợp Quốc Hà Nội), 20.9 km away

Health signal

Sensitive groups should limit long or intense outdoor activity.

PM2.5

42.8

PM10

—

NO₂

—

O₃

—

SO₂

—

CO

—

Data: World Air Quality Index Project, UNIS - United Nations International School Of Hanoi

Outdoor exercise
Children, older adults and people with asthma or heart disease should cut down long or hard exercise
Windows
Close them to keep the outside air out
Mask
Sensitive groups: an N95 outdoors
Air purifier
Run one, especially in bedrooms

Over the last 7 days, the CAMS air-quality model put Phúc Yên's daily AQI at 78 on average, from 47 on Nov 9 to an hourly peak of 157 on Nov 4.

Last 7 days · model estimateavg 78 · peak 157
Nov 4: AQI 108 (peak 157)Nov 5: AQI 78 (peak 96)Nov 6: AQI 80 (peak 98)Nov 7: AQI 79 (peak 123)Nov 8: AQI 93 (peak 132)Nov 9: AQI 47 (peak 66)Nov 10: AQI 59 (peak 129)
Nov 4Nov 10

Where Phúc Yên stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Phúc Yên: Healthy tree cover

39.3% tree cover against a 35% healthy-neighborhood target, across 12.52 km² of land.

Target reached

Trees in this area

122,971

Target trees

122,971

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Phúc Yên lost?

There was very little forest around Phúc Yên in 2000, about 50 hectares, and about 4 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.

Satellite image of the area around Phúc Yên, December 2017

2017: satellite photo from December 2017 of a 5 × 5 km area in the city center.

Forest lost each year around Phúc Yên, 2001–2025

Hectares of forest lost each year

Forest lost each year around Phúc Yên, 2001–2025. Use the left and right arrow keys to read each year.0.7

Show the figures as a table
Forest lost each year around Phúc Yên, 2001–2025
YearCleared for goodCan grow backTotal
2001under 1 haunder 1 haunder 1 ha
2002under 1 haunder 1 haunder 1 ha
2003under 1 haunder 1 haunder 1 ha
2004under 1 haunder 1 haunder 1 ha
2005under 1 haunder 1 haunder 1 ha
2006under 1 haunder 1 haunder 1 ha
2007under 1 haunder 1 haunder 1 ha
2008under 1 haunder 1 haunder 1 ha
2009under 1 haunder 1 haunder 1 ha
2010under 1 haunder 1 haunder 1 ha
2011under 1 haunder 1 haunder 1 ha
2012under 1 haunder 1 haunder 1 ha
2013under 1 haunder 1 haunder 1 ha
2014under 1 haunder 1 haunder 1 ha
2015under 1 haunder 1 haunder 1 ha
2016under 1 haunder 1 haunder 1 ha
2017under 1 haunder 1 haunder 1 ha
2018under 1 haunder 1 haunder 1 ha
2019under 1 haunder 1 haunder 1 ha
2020under 1 haunder 1 haunder 1 ha
2021under 1 haunder 1 haunder 1 ha
2022under 1 haunder 1 haunder 1 ha
2023under 1 haunder 1 haunder 1 ha
2024under 1 haunder 1 haunder 1 ha
2025under 1 haunder 1 haunder 1 ha

What is causing deforestation around Phúc Yên?

  • Loggingcan grow back47% · 2 ha
  • Farms, pasture and plantationscleared for good15% · under 1 ha
  • Towns and roadscleared for good10% · under 1 ha

Also: mining and energy, 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
3,910 ha
Forest in 2020
4,840 ha
Overall change
+928 hamore forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Phúc Yên grew from about 3,910 hectares to 4,840 hectares, a net gain of about 928 hectares (+24%). New forest grew on about 949 hectares, while 22 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

In the same region

Measured cities near Phúc Yên

Same 2 km radius, same index — so they compare directly.

Build your own

Compare Phúc Yên with anywhere

This place

Phúc Yên

Use this data

Put Phúc Yên's numbers on your site

Free to embed. Updates itself as the measurement refreshes.

Phúc Yên air quality (AQI) and tree cover — measured by Airleaf
HTML
Markdown

Frequently asked

Questions about Phúc Yên

What is the air quality (AQI) in Phúc Yên right now?

The latest reading for Phúc Yên shows an AQI of 119 (Unhealthy for sensitive groups), measured Nov 11, 21:00 local time by the United Nations International School of Hanoi, Vietnam (Trường Quốc tế Liên Hợp Quốc Hà Nội) ground monitoring station, 20.9 km away, via OpenAQ. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.

Is it safe to exercise outside in Phúc Yên today?

At AQI 119 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Phúc Yên been like this week?

Over the last 7 days, the CAMS air-quality model put Phúc Yên's daily AQI at 78 on average, from 47 on Nov 9 to an hourly peak of 157 on Nov 4. On 1 of those days the average was above 100, unhealthy for sensitive groups.

How much forest has the area around Phúc Yên lost since 2001?

There was very little forest around Phúc Yên in 2000, about 50 hectares, and about 4 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Phúc Yên grew from about 3,910 hectares to 4,840 hectares, a net gain of about 928 hectares (+24%). New forest grew on about 949 hectares, while 22 hectares were lost.

What is the tree count in Phúc Yên?

Phúc Yên has an estimated 122,971 trees across the 12.52 km² of land measured — 39.3% tree cover, already past the 35% tree-cover target set for this area.

How many more trees does Phúc Yên need?

Phúc Yên has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Phúc Yên's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Phuc Yen, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Phuc Yen; the tree count is an estimate derived from that cover.

See your own area

What does your neighborhood look like?

Pick any point and radius to get the same air-quality and tree-cover breakdown.

Check my address