SmogRank / Countries / Ireland / Leinster

Most polluted cities in Leinster, Ireland

16 measured cities ranked by PM2.5, last 7 days. Worst: Wexford at 7.6 µg/m³, #1063 in the world.

#City µg/m³
1Wexford Leinster
7.6
2Drogheda Leinster
5.7
3Carlow Leinster
5.6
4Dundalk Leinster
5.4
5Dublin Leinster
5.4
6Greystones Leinster
5.2
7Dún Laoghaire Leinster
5.2
8Navan Leinster
5.0
9Portlaoise Leinster
4.9
10Blanchardstown Leinster
4.8
11Tallaght Leinster
4.7
12Leixlip Leinster
4.7
13Bray Leinster
4.6
14Athlone Leinster
4.6
15Swords Leinster
4.5
16Naas Leinster
4.2
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Leinster cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Droichead Nua estimated≈ 4 µg/m³Good
An Muileann gCearr estimated≈ 4 µg/m³Good
Sandyford estimated≈ 5 µg/m³Good
Balbriggan estimated≈ 6 µg/m³Good
Kilkenny estimated≈ 5 µg/m³Good
Celbridge estimated≈ 5 µg/m³Good
Finglas estimated≈ 5 µg/m³Good
Rathfarnham estimated≈ 5 µg/m³Good
Maynooth estimated≈ 5 µg/m³Good
Malahide estimated≈ 6 µg/m³Good
Tullamore estimated≈ 4 µg/m³Good
Lucan estimated≈ 5 µg/m³Good

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