Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 10
Articles | Volume 26, issue 10
https://doi.org/10.5194/acp-26-6557-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-6557-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 10
Research article
 | 
18 May 2026
Research article |  | 18 May 2026

Surface ozone distribution and trends over Ireland: insights from long-term measurement record and source attribution modelling

Nikhil Korhale, Tabish Ansari, Tim Butler, Jurgita Ovadnevaite, Emmanuel Chevassus, Darius Ceburnis, Damien Martin, Colin D. O'Dowd, and Liz Coleman

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Short summary
We investigate the distribution and trends of surface ozone and its precursors over Ireland using advanced modelling to determine the drivers of ozone. Trajectory analysis is used to trace the origins of air masses, revealing the impact of transboundary pollution and atmospheric transport. The rising trend has been observed at urban sites over the past two decades, but without a similar trend at coastal sites. Coastal areas consistently show higher ozone levels than rural and urban areas.
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