City report · Thailand
Khlong Luang Air quality today
Air quality in Khlong Luang currently reads AQI 67 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 67
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 17.7
- tree cover
- 35.1%
- trees in this area
- 110K
- more trees needed
- 0
Measured across a 2 km radius around Khlong Song, Khlong Luang District, Pathum Thani 12120, Thailand (12.57 km²), from a satellite image of Aug 3, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Khlong Luang · AQI 67 (Moderate)
Khlong Luang's tree count comes to 110,270 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Khlong Luang today: AQI 67, Moderate
Main pollutant: PM2.5 · Observed Nov 12, 00:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Bangkok University Rangsit Campus, 5.3 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
17.7
PM10
—
NO₂
0.0
O₃
56.9
SO₂
15.7
CO
343.7
Data: OpenAQ · Air4Thai, Pollution Control Department, Thailand · Air4Thai
- 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 Khlong Luang's daily AQI at 55 on average, from 30 on Nov 10 to an hourly peak of 98 on Nov 8.
Where Khlong Luang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Khlong Luang: Healthy tree cover
35.1% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
110,270
Target trees
110,270
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Khlong Luang lost?
Since 2001, the area within 10 km of Khlong Luang has lost about 34 hectares of forest (about 48 football pitches): 4.4% of the forest it had in 2000. Most of it (57%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from March 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 34 haabout 48 football pitches
- Share of its forest
- 4.4%of what there was in 2000
- Cleared for good
- 19 hadeforestation: turned into farms, mines or towns
The worst year was 2001, when about 7 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 | 5 ha | 3 ha | 7 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | 1 ha | 1 ha |
| 2004 | 2 ha | under 1 ha | 3 ha |
| 2005 | under 1 ha | under 1 ha | 1 ha |
| 2006 | under 1 ha | 1 ha | 2 ha |
| 2007 | under 1 ha | 1 ha | 2 ha |
| 2008 | 2 ha | under 1 ha | 2 ha |
| 2009 | 2 ha | 1 ha | 3 ha |
| 2010 | 1 ha | 2 ha | 3 ha |
| 2011 | under 1 ha | under 1 ha | 1 ha |
| 2012 | 1 ha | 1 ha | 3 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 1 ha | under 1 ha | 2 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Khlong Luang?
- Towns and roadscleared for good41% · 14 ha
- Farms, pasture and plantationscleared for good16% · 6 ha
- Unknown causescause unknown44% · 15 ha
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
- 1,730 ha
- Forest in 2020
- 1,990 ha
- Overall change
- +261 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Khlong Luang grew from about 1,730 hectares to 1,990 hectares, a net gain of about 261 hectares (+15%). New forest grew on about 309 hectares, while 48 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 Khlong Luang
Same 2 km radius, same index — so they compare directly.
- Sai Mai16.0 km
Thailand
- Tree cover
- 18%
- Air quality
- 56
- Khlong Sam Wa23.6 km
Thailand
- Tree cover
- 55%
- Air quality
- 61
- Mueang Nonthaburi26.7 km
Thailand
- Tree cover
- 31%
- Air quality
- 57
- Bueng Kum31.2 km
Thailand
- Tree cover
- 33%
- Air quality
- 59
- Nong Chok32.9 km
Thailand
- Tree cover
- 50%
- Air quality
- 54
- Watthana37.8 km
Thailand
- Tree cover
- 23%
- Air quality
- 59
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Frequently asked
Questions about Khlong Luang
What is the air quality (AQI) in Khlong Luang right now?
The latest reading for Khlong Luang shows an AQI of 67 (Moderate), measured Nov 12, 00:00 local time by the Bangkok University Rangsit Campus ground monitoring station, 5.3 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Khlong Luang today?
At AQI 67 (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 Khlong Luang been like this week?
Over the last 7 days, the CAMS air-quality model put Khlong Luang's daily AQI at 55 on average, from 30 on Nov 10 to an hourly peak of 98 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Khlong Luang lost since 2001?
Since 2001, the area within 10 km of Khlong Luang has lost about 34 hectares of forest (about 48 football pitches): 4.4% of the forest it had in 2000. Most of it (57%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Khlong Luang grew from about 1,730 hectares to 1,990 hectares, a net gain of about 261 hectares (+15%). New forest grew on about 309 hectares, while 48 hectares were lost.
What is the tree count in Khlong Luang?
Khlong Luang has an estimated 110,270 trees across the 12.57 km² measured — 35.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Khlong Luang need?
Khlong Luang has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Khlong Luang's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Khlong Song, 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 Khlong Song; the tree count is an estimate derived from that cover.
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