In part, yes. Given it is a low emission region, areas of Ireland such as Mace Head typically don't have air quality issues from local sources. The predominant wind direction is blowing in area west->east across the atlantic, which means they're exposed to 'baseline' levels of ozone, which is both produced and destroyed over the ocean as well as in part transported from North America. With regards to particulate matter, the only real downside is that sea salt aerosol is in higher abundance there.