Looking to find the least polluted cities in Thailand to get a break from air pollution? Smart Air analyzed 2023 air pollution data for dozens of Thailand cities to generate the ranking of the “10 Least Polluted Cities in Thailand”.
Scroll down for the full rundown of the least polluted cities in Thailand and their annual PM2.5 levels. and their annual PM2.5 levels. The annual average PM2.5 in micrograms (µg/m3) is also given. For reference, the WHO recommended annual limit is 5 micrograms.
Rankings: 10 Least Polluted Cities in Thailand
The rankings for the least polluted cities in Thailand are based on PM2.5 air pollution data from 2023.
1. Sadao, Songkhla (10.6 µg/m³)
2. Betong, Yala (12.4 µg/m³)
3. Trang, Trang (12.7 µg/m³)
4. Nakhon Si Thammarat, Nakhon Si Thammarat (14.7 µg/m³)
5. Ko Samui, Surat Thani (14.9 µg/m³)
6. Satun, Satun (15.1 µg/m³)
7. Surat Thani, Surat Thani (15.6 µg/m³)
8. Narathiwat, Narathiwat (15.9 µg/m³)
9. Trat, Trat (16.4 µg/m³)
10. Ban Talat Yai, Phuket (16.5 µg/m³)
Read More: The 10 Most Polluted Cities in Thailand 2023?
Analysis: Least Polluted Cities in Thailand
There are 9 out of the 10 least polluted cities are located in the southern part of Thailand. Many of these cities are coastal or island locations, suggesting maritime air patterns contribute to cleaner air.
All of the ranked cities had average air quality above the WHO recommended healthy limit (5µg/m3).
There is research that even small amounts of pollution such as those typically present in these least polluted cities can have an impact on health.
Below is a pollution heat map from the WHO. WHO research shows that over 99% of people in the world are breathing unsafe air with high air pollution levels.
How Air Pollution Was Measured to Find Least Polluted Cities in Thailand
The above rankings of the least polluted cities in Thailand were ranked based on their annual PM2.5 pollution levels in 2023.
These small pollutants are under 2.5 micrograms in width and are considered to be one of the more dangerous pollutants due to their ability to enter deep into the lungs and bloodstream.
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