Air Quality Index (AQI) in Saint Lucia 🇱🇨
Live Air Quality Index (AQI) and PM2.5 Levels in Saint Lucia
Currently, the Air Quality Index (AQI) in Castries, the capital of Saint Lucia, is measured at a score of 55. According to the US EPA health standard, this air quality rating is categorized as Moderate. The current atmosphere in Castries is influenced by a PM2.5 (fine particulate matter) concentration of 11.4 µg/m³ and PM10 levels recorded at 22.8 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 Saint Lucia 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 Bisee. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.
Saint Lucia Air Quality: Major Cities Index
* Air Quality Index (AQI) data for Saint Lucia 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 Saint Lucia
What is the air quality in Saint Lucia right now?
The current AQI in Castries (capital of Saint Lucia) is 55 — categorised as Moderate. Conditions vary across the country — see AQI for all cities for a complete picture.
Which city in Saint Lucia has the worst air quality right now?
Right now, Castries has the highest AQI reading in Saint Lucia at 55 (Moderate).
Which city in Saint Lucia has the best air quality right now?
Castries currently has the lowest AQI in Saint Lucia at 55 (Moderate).
What is the PM2.5 level in Castries today?
The PM2.5 (fine particulate) concentration in Castries, the capital of Saint Lucia, is currently 11.4 µg/m³. The WHO 24-hour guideline is 15 µg/m³.
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