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City report · Laos

Ban Khoan Air quality today

Air quality in Ban Khoan currently reads AQI 9 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 9

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
1.7
tree cover
46.9%
trees in this area
122K
more trees needed
0

Measured across a 2 km radius around Muang Tonpheung, Bokeo, Lao People's Democratic Republic (12.57 km²), from a satellite image of Jun 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Ban Khoan · AQI 9 (Good)

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

Ban Khoan's tree count comes to 121,998 trees across 10.41 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Ban Khoan today: AQI 9, Good

Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.

Ground station · Tonpheung Secondary School - Tonpheung, Bokeo ມັດທະຍົມ ຕົ້ນເຜີ້ງ, 6.5 km away

Health signal

Air quality is satisfactory for everyone.

PM2.5

1.7

PM10

—

NO₂

—

O₃

—

SO₂

—

CO

—

Data: OpenAQ · AirGradient, UNICEF

Outdoor exercise
A good day to be active outside
Windows
Open them to air the house
Mask
Not needed
Air purifier
Not needed

Over the last 7 days, the CAMS air-quality model put Ban Khoan's daily AQI at 32 on average, from 21 on Nov 10 to an hourly peak of 76 on Nov 5.

Last 7 days · model estimateavg 32 · peak 76
Nov 5: AQI 52 (peak 76)Nov 6: AQI 55 (peak 62)Nov 7: AQI 24 (peak 55)Nov 8: AQI 24 (peak 44)Nov 9: AQI 23 (peak 42)Nov 10: AQI 21 (peak 43)Nov 11: AQI 24 (peak 25)
Nov 5Nov 11

Where Ban Khoan stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Ban Khoan: Healthy tree cover

46.9% tree cover against a 30% healthy-neighborhood target, across 10.41 km² of land.

Target reached

Trees in this area

121,998

Target trees

121,998

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Ban Khoan lost?

Since 2001, the area within 10 km of Ban Khoan has lost about 2,980 hectares of forest (about 4,200 football pitches): 31% of the forest it had in 2000. Most of it (83%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.

Satellite image of the area around Ban Khoan, February 2017

2017: satellite photo from February 2017 of a 5 × 5 km area about 5 km east of the city center.

Forest lost since 2001
2,980 haabout 4,200 football pitches
Share of its forest
31%of what there was in 2000
Cleared for good
2,490 hadeforestation: turned into farms, mines or towns

Forest loss is speeding up: about 143 hectares a year in 2021–2025, up from 78 hectares a year in 2016–2020. The worst year was 2008, when about 269 hectares of forest were lost.

Forest lost each year around Ban Khoan, 2001–2025

Hectares of forest lost each year

Forest lost each year around Ban Khoan, 2001–2025. Use the left and right arrow keys to read each year.269

Show the figures as a table
Forest lost each year around Ban Khoan, 2001–2025
YearCleared for goodCan grow backTotal
200117 ha15 ha32 ha
200232 ha7 ha39 ha
200358 ha11 ha69 ha
200456 ha4 ha60 ha
200561 ha4 ha64 ha
2006139 ha12 ha151 ha
2007190 ha12 ha202 ha
2008262 ha7 ha269 ha
2009121 ha25 ha146 ha
2010196 ha20 ha216 ha
2011176 ha19 ha195 ha
2012215 ha41 ha256 ha
201335 ha3 ha38 ha
201450 ha12 ha62 ha
201564 ha12 ha76 ha
201669 ha7 ha76 ha
201754 ha4 ha58 ha
201839 ha2 ha40 ha
2019105 ha10 ha115 ha
202092 ha11 ha103 ha
202186 ha30 ha116 ha
2022106 ha41 ha147 ha
202391 ha20 ha111 ha
2024107 ha118 ha225 ha
202568 ha46 ha114 ha

What is causing deforestation around Ban Khoan?

  • Farms, pasture and plantationscleared for good67% · 2,000 ha
  • Shifting farmingcan grow back16% · 490 ha
  • Towns and roadscleared for good9% · 268 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
14,900 ha
Forest in 2020
12,700 ha
Overall change
−2,260 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Ban Khoan shrank from about 14,900 hectares to 12,700 hectares, a net loss of about 2,260 hectares (−15%). New forest grew on about 1,120 hectares, but 3,380 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 Ban Khoan

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

  • Kēng Tung

    Myanmar

    116.2 km
    Tree cover
    33%
    Air quality
    14
  • Möng Yang

    Myanmar

    172.0 km
    Tree cover
    21%
    Air quality
    11
  • Yunjinghong

    China

    199.1 km
    Tree cover
    34%
    Air quality
    58
  • Chiang Mai

    Thailand

    208.5 km
    Tree cover
    20%
    Air quality
    51
  • Lampang

    Thailand

    237.2 km
    Tree cover
    34%
    Air quality
    13
  • Pu'er

    China

    286.2 km
    Tree cover
    22%
    Air quality
    39

Also compared:Ban Khoan vs Vientiane

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Ban Khoan air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Ban Khoan

What is the air quality (AQI) in Ban Khoan right now?

The latest reading for Ban Khoan shows an AQI of 9 (Good), measured Nov 11, 22:00 local time by the Tonpheung Secondary School - Tonpheung, Bokeo ມັດທະຍົມ ຕົ້ນເຜີ້ງ ground monitoring station, 6.5 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Ban Khoan today?

At AQI 9 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Ban Khoan been like this week?

Over the last 7 days, the CAMS air-quality model put Ban Khoan's daily AQI at 32 on average, from 21 on Nov 10 to an hourly peak of 76 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 Ban Khoan lost since 2001?

Since 2001, the area within 10 km of Ban Khoan has lost about 2,980 hectares of forest (about 4,200 football pitches): 31% of the forest it had in 2000. Most of it (83%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is speeding up: about 143 hectares a year in 2021–2025, up from 78 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Ban Khoan shrank from about 14,900 hectares to 12,700 hectares, a net loss of about 2,260 hectares (−15%). New forest grew on about 1,120 hectares, but 3,380 hectares were lost.

What is the tree count in Ban Khoan?

Ban Khoan has an estimated 121,998 trees across the 10.41 km² of land measured — 46.9% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Ban Khoan need?

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

How are Ban Khoan's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Muang Tonpheung, 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 Muang Tonpheung; the tree count is an estimate derived from that cover.

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