Most polluted cities in Connacht, Ireland

2 measured cities ranked by PM2.5, last 7 days. Worst: Galway at 5.8 µg/m³, #1598 in the world.

#	City		µg/m³
1	Galway Connacht		5.8
2	Sligo Connacht		4.8

Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Updated 2026-10-01 12:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.