Thailand · Bangkok · 9 cities
Air quality in Bangkok today The AQI right now, city by city
Right now, Nong Chok has the cleanest air of the 9 cities we track in Bangkok (AQI 51, Moderate), and Khlong Sam Wa the worst (AQI 62, Moderate). Khlong Sam Wa has the most tree cover, at 54.5% — #3 of 31 cities measured in Thailand.
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.
Average right now
AQI 58
Moderate
- cities tracked
- 9
- average tree cover
- 32.9%
- Thailand: 32.7%
- worst air now: Khlong Sam Wa
- 62
- cleanest air now: Nong Chok
- 51
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Bangkok · average AQI 58
Air quality today across Bangkok, city by city
| Bangkok | 58Moderate | 11.7% | 52.1K | #31 of 31 |
|---|---|---|---|---|
| Latkrabang | 58Moderate | 36.7% | — | #9 of 31 |
| Bang Khae | 58Moderate | 29.5% | 1.6K | #20 of 31 |
| Sai Mai | 57Moderate | 18.4% | 36.4K | #28 of 31 |
| Watthana | 58Moderate | 23.2% | 21.4K | #25 of 31 |
| Khlong Sam Wa | 62Moderate | 54.5% | — | #3 of 31 |
| Nong Chok | 51Moderate | 50.3% | — | #4 of 31 |
| Bueng Kum | 58Moderate | 32.6% | — | #14 of 31 |
| Ban Samae Dam | 60Moderate | 39.5% | — | #6 of 31 |
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 Thailand.
Deforestation · 2001–2025
How much forest has Bangkok lost?
Since 2001, Bangkok has lost about 325 hectares of forest (about 450 football pitches): 6.6% of the forest it had in 2000. Most of it (81%) was deforestation, forest cleared for good, mainly for towns and roads.
- Forest lost since 2001
- 325 haabout 450 football pitches
- Share of its forest
- 6.6%of what there was in 2000
- Cleared for good
- 263 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 6 ha | 10 ha | 16 ha |
| 2002 | 2 ha | 2 ha | 4 ha |
| 2003 | 13 ha | 5 ha | 18 ha |
| 2004 | 35 ha | 7 ha | 41 ha |
| 2005 | 22 ha | 2 ha | 24 ha |
| 2006 | 37 ha | 7 ha | 44 ha |
| 2007 | 19 ha | 3 ha | 22 ha |
| 2008 | 11 ha | 2 ha | 13 ha |
| 2009 | 18 ha | 8 ha | 25 ha |
| 2010 | 40 ha | 6 ha | 46 ha |
| 2011 | 12 ha | 3 ha | 15 ha |
| 2012 | 21 ha | 4 ha | 25 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 2 ha | under 1 ha | 2 ha |
| 2015 | 2 ha | under 1 ha | 2 ha |
| 2016 | 3 ha | under 1 ha | 3 ha |
| 2017 | 4 ha | under 1 ha | 4 ha |
| 2018 | under 1 ha | under 1 ha | 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 | 2 ha | under 1 ha | 2 ha |
| 2023 | 5 ha | under 1 ha | 5 ha |
| 2024 | 1 ha | under 1 ha | 1 ha |
| 2025 | 7 ha | 1 ha | 8 ha |
The worst year was 2010, when about 46 hectares of forest were lost.
What is causing deforestation in Bangkok?
- Towns and roadscleared for good79% · 257 ha
- Farms, pasture and plantationscleared for good1.7% · 6 ha
- Unknown causescause unknown19% · 62 ha
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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