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Air Quality Index (AQI) in Thailand 🇹🇭

Bangkok Air Quality Index

AQI INDEX
59
US EPA Standard

PM 2.5 Level
14
µg/m³

US EPA Index
2
Moderate

Live Air Quality Index (AQI) and PM2.5 Levels in Thailand

Currently, the Air Quality Index (AQI) in Bangkok, the capital of Thailand, is measured at a score of 59. According to the US EPA health standard, this air quality rating is categorized as Moderate. The current atmosphere in Bangkok is influenced by a PM2.5 (fine particulate matter) concentration of 13.5 µg/m³ and PM10 levels recorded at 13.5 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 16.1 µg/m³.

Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Thailand based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like Samut Prakan, Mueang Nonthaburi, Chon Buri, Hat Yai and Pak Kret. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.

Thailand Air Quality: Major Cities Index

Pollution Monitor & AQI Forecast: Thailand Regions

* Air Quality Index (AQI) data for Thailand is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.

Browse Air Quality in Thailand by cities in alphabetical order:

A B C D H K L M N P R S T U W Y

Frequently Asked Questions about Air Quality in Thailand

What is the air quality in Thailand right now?

The current AQI in Bangkok (capital of Thailand) is 59 — categorised as Moderate. Conditions vary across the country — see AQI for all cities for a complete picture.

Which city in Thailand has the worst air quality right now?

Right now, Mueang Nonthaburi has the highest AQI reading in Thailand at 116 (Unhealthy (Sensitive)).

Which city in Thailand has the best air quality right now?

Surat Thani currently has the lowest AQI in Thailand at 22 (Good).

What is the PM2.5 level in Bangkok today?

The PM2.5 (fine particulate) concentration in Bangkok, the capital of Thailand, is currently 13.5 µg/m³. The WHO 24-hour guideline is 15 µg/m³.

Is the air in Thailand safe to breathe today?

Most cities in Thailand currently report acceptable air-quality levels, though local conditions vary.

What are the cleanest cities in Thailand right now?

Top 5 cities in Thailand with the best (lowest) AQI right now:

  • Surat Thani: AQI 22 — Good
  • Phuket: AQI 24 — Good
  • Sakon Nakhon: AQI 24 — Good
  • Ubon Ratchathani: AQI 30 — Good
  • Udon Thani: AQI 39 — Good
What are the most polluted cities in Thailand right now?

Top 5 cities in Thailand with the worst (highest) AQI right now:

  • Mueang Nonthaburi: AQI 116 — Unhealthy (Sensitive)
  • Pak Kret: AQI 116 — Unhealthy (Sensitive)
  • Bang Kruai: AQI 116 — Unhealthy (Sensitive)
  • Khlong Luang: AQI 89 — Moderate
  • Chiang Mai: AQI 78 — Moderate

Air Quality Scales & Resources

Wondering what these AQI numbers mean for your health? Our worldwide air quality guide explains every level of the AQI, PM2.5, PM10, ozone, NO2, CO and SO2 scales, with practical health advice for each range.

→ Understanding Air Quality Levels: read the full guide