Pollen Count & Forecast for Limerick

Limerick’s spring allergy season (March-May) is dominated by Birch and Ash pollen; Birch (Betula) is prolific in People’s Park and near the University of Limerick; Ash (Fraxinus excelsior) is widespread along the River Shannon. Oak (Quercus) is significant in Curraghchase Forest Park. Summer (May-July) has high Grass (Poaceae) levels; sources are the Shannon meadows and fields near Thomond Park.

Damp winds from the Atlantic Ocean carry pollen across the Shannon Estuary; low-lying terrain around the city has pockets of stagnant air. Autumn and winter have high Mould (Alternaria, Cladosporium) spore counts; these are from decaying leaf litter in the Clare Hills and damp riverine areas.