Air Quality Index (AQI) in Niue 🇳🇺
Live Air Quality Index (AQI) and PM2.5 Levels in Niue
Currently, the Air Quality Index (AQI) in Alofi, the capital of Niue, is measured at a score of 56. According to the US EPA health standard, this air quality rating is categorized as Good. The current atmosphere in Alofi is influenced by a PM2.5 (fine particulate matter) concentration of 11.7 µg/m³ and PM10 levels recorded at 20.5 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 0.0 µg/m³.
Niue Air Quality: Major Cities Index
* Air Quality Index (AQI) data for Niue 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.
Air Quality in Niue — FAQ
Common questions about AQI levels, pollutants, and data sources for Niue.
What is the current air quality in Niue?
Live AQI readings for 1 city(ies) across Niue are listed above on the US EPA 0-500 scale.
Where does Niue's AQI data come from?
Real-time readings come from ground-based monitoring stations operated by national environmental agencies in Niue, delivered via WeatherAPI.com and aggregated using the EPA AQI formula.
What is a healthy AQI value in Niue?
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 Niue?
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 Niue.