A new national ambient air quality monitoring station has been established in Tralee.
The details were released in the Environmental Protection Agency's report on air quality in Ireland for 2019.
A national ambient air quality monitoring programme began at the end of 2017.
It involves an expanded national monitoring network, supported by increased modelling and forecasting capability to provide air quality forecasts to the public.
Twenty-four new monitoring stations were established in 2019, among these was one in Tralee.
The EPA report for 2019 shows unhealthy levels of airborne dust and soot at 33 sites across the country.
High levels of ozone were recorded in Valentia; the annual mean reading at Valentia in 2019 was 72 micrograms per cubic meter of air; this is the second-highest reading of 15 areas nationwide.
However, this doesn't exceed the EU legal limit values.
In Tralee, the annual mean reading of PM2.5 particles, which come from solid fuel burning for home heating, was 23 micrograms while the annual mean reading of PM10 particles, which can be made up of several sources including pollen or wind-blown sea salt, was 28 micrograms last year.