SmogRank / World / Ireland / Leinster / 2024
Most polluted cities in Leinster, Ireland, 2024
1 city in Leinster, Ireland ranked by their average PM2.5 over the 366 days; 1 above the WHO annual guideline (5.0 µg/m³). The only one: Dublin at 7.5 µg/m³, #1,257 of 2,052 cities in the world. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.
Leinster has 15 cities ranked over the last 30 days, but only 1 here: most of its monitors have no readings for 2024 in OpenAQ's archive, where ours come from, or too few to rank. Cities missing from this board weren't clean, just not measured.
- 1Dublin 421.5×
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Leinster, Ireland, PM2.5, 2024, smogrank.com/ie/region/leinster/history/2024 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.