Air Quality Index (AQI) in Bhutan 🇧🇹

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

Currently, the Air Quality Index (AQI) in Thimphu, the capital of Bhutan, is measured at a score of 20. According to the US EPA health standard, this air quality rating is categorized as Good. The current atmosphere in Thimphu is influenced by a PM2.5 (fine particulate matter) concentration of 3.6 µg/m³ and PM10 levels recorded at 4.0 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 3.4 µg/m³.

Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Bhutan 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 Phuntsholing, Tsirang, Punākha and Pemagatshel. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.

Air Quality Snapshot: Bhutan Right Now

Across 5 monitored cities in Bhutan, live air quality currently ranges from a low of 20 AQI in Thimphu (the cleanest air right now) to a high of 108 AQI in Pemagatshel (the most polluted). By US EPA health band, the nationwide distribution stands at 2 Good, 2 Moderate, 1 Unhealthy for Sensitive Groups. The average fine-particulate (PM2.5) concentration across these cities is 20.3 µg/m³ — approximately 4.1 times the World Health Organization (WHO) annual air quality guideline of 5 µg/m³.

Bhutan Air Quality: Major Cities Index

Thimphu
1
Phuntsholing
2

Tsirang
2
Punākha
1

Pemagatshel
2

* Air Quality Index (AQI) data for Bhutan 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.

What Today's Readings Mean in Bhutan

The median reading across 5 monitored cities is 75 AQI. The national spread is 88 points, from 20 in Thimphu to 108 in Pemagatshel. Average PM2.5 is 20.3 µg/m³ (4.1× the WHO annual guideline).

At least one monitored location is unhealthy for sensitive groups. Children, older adults, and people with heart or lung conditions should limit prolonged outdoor exertion in the affected city.

See the complete AQI and pollutant reference scales

Health & Scientific Resources

→ How to read US EPA Air Quality Index before going outside → Understanding Air Quality Index levels and what they mean → When haze forms and what it does to air quality

Air Quality in Bhutan — FAQ

Common questions about AQI levels, pollutants, and data sources for Bhutan.

What is the current air quality in Bhutan?

Live AQI readings for 5 city(ies) across Bhutan are listed above on the US EPA 0-500 scale.

Where does Bhutan's AQI data come from?

Real-time readings come from ground-based monitoring stations operated by national environmental agencies in Bhutan, delivered via WeatherAPI.com and aggregated using the EPA AQI formula.

What is a healthy AQI value in Bhutan?

On the EPA scale used worldwide, 0-50 is Good, 51-100 is Moderate, 101-150 is Unhealthy for sensitive groups, 151-200 is Unhealthy, 201-300 is Very Unhealthy, and 301-500 is Hazardous. The WHO 24-hour PM2.5 guideline is 15 μg/m³.

Why do AQI readings vary between cities in Bhutan?

Air quality is highly local — major pollution sources (traffic, industry, dust, wildfires) cluster around cities, while wind direction and topography move them around. Comparing nearby readings on this page is the best way to see how conditions change across Bhutan.