Analysis of Corylus pollen season in selected cities of Poland in 2025 Original article
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Abstract
Corylus produces allergenic pollen grains that appear in the air in early spring and are among the first sources of seasonal aeroallergens in Poland. The aim of this study was to analyse and compare the Corylus pollen seasons in selected cities of Poland in 2025. Aerobiological monitoring was conducted in Bialystok, Olsztyn, Opole, Szczecin and Warsaw using volumetric Burkard or Lanzoni pollen samplers. Daily pollen concentrations were expressed as the number of pollen grains in 1 m3 of air. Seasonal characteristics were determined using the Seasonal Pollen Index (SPI), peak value and peak date. In addition, the number of days with pollen concentrations exceeding clinically relevant threshold values of 35 and 80 grains/m3 was calculated. The hazel pollen season in 2025 began between late February and early March and showed clear regional differences in intensity. The highest annual pollen sum and the greatest number of threshold exceedance days were recorded in Opole, while the lowest values were observed in Bialystok. The results indicate a moderate to high risk of allergic symptoms in sensitised individuals, particularly in central and south-western Poland.
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Copyright: ? Medical Education sp. z o.o. This is an Open Access article distributed under the terms of the Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). License (https://creativecommons.org/licenses/by-nc/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
Address reprint requests to: Medical Education, Marcin Kuźma (marcin.kuzma@mededu.pl)
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