Air Quality in Virgin Islands

Virgin Islands has 3 counties with EPA air quality monitoring. Air quality is generally improving across the state, with an average of 56 "Good" days per county per year. The best air quality is in St John (median AQI 18) and the most polluted is St Thomas (median AQI 31).

County	Median AQI	Max AQI	Good Days	Unhealthy Days	Trend	Top Pollutant
St Croix	29	67	22	0	↓ improving	PM2.5
St John	18	93	90	0	↓ improving	PM2.5
St Thomas	31	75	58	0	↓ improving	PM2.5