Air Quality Index (AQI) in Guam 🇬🇺
Live Air Quality Index (AQI) and PM2.5 Levels in Guam
Currently, the Air Quality Index (AQI) in Hagatna, the capital of Guam, is measured at a score of 44. According to the US EPA health standard, this air quality rating is categorized as Good. The current atmosphere in Hagatna is influenced by a PM2.5 (fine particulate matter) concentration of 7.9 µg/m³ and PM10 levels recorded at 11.5 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 0.1 µg/m³.
Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Guam 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 Dededo Village, Yigo Village, Tamuning, Tamuning-Tumon-Harmon Village and Mangilao Village. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.
Guam Air Quality: Major Cities Index
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* Air Quality Index (AQI) data for Guam 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.
Frequently Asked Questions about Air Quality in Guam
What is the air quality in Guam right now?
The current AQI in Hagatna (capital of Guam) is 44 — categorised as Good. Conditions vary across the country — see AQI for all cities for a complete picture.
Which city in Guam has the worst air quality right now?
Right now, Dededo Village has the highest AQI reading in Guam at 55 (Moderate).
Which city in Guam has the best air quality right now?
Hagatna currently has the lowest AQI in Guam at 44 (Good).
What is the PM2.5 level in Hagatna today?
Is the air in Guam safe to breathe today?
Most cities in Guam currently report acceptable air-quality levels, though local conditions vary.
What are the cleanest cities in Guam right now?
Top 5 cities in Guam with the best (lowest) AQI right now:
- Hagatna: AQI 44 — Good
- Dededo Village: AQI 55 — Moderate
- Yigo Village: AQI 55 — Moderate
- Tamuning: AQI 55 — Moderate
- Tamuning-Tumon-Harmon Village: AQI 55 — Moderate
What are the most polluted cities in Guam right now?
Top 5 cities in Guam with the worst (highest) AQI right now:
- Dededo Village: AQI 55 — Moderate
- Yigo Village: AQI 55 — Moderate
- Tamuning: AQI 55 — Moderate
- Tamuning-Tumon-Harmon Village: AQI 55 — Moderate
- Mangilao Village: AQI 55 — 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