engleski

Betula, Corylus and Alnus airborne pollen in Zagreb, Croatia

The aim of this study was to build up a picture of the influence of meteorological conditions on the start and duration of Betulaceae pollen season and pollen concentrations during three years (2002-2004) in the atmosphere of Zagreb, Croatia. A 7-days VPPS 2000 Hirst volumetric spore trap was used for pollen sampling. The highest annual pollen concentration of all three genera (Alnus, Corylus and Betula) was recorded in 2002 (3, 883 pg/m3 ; 11, 106 pg/m3 and 14, 448 pg/m3) followed by a decline in 2003, and rise again in 2004. The highly favorable weather conditions in 2002 during the period preceding the pollination of alder, hazel and birch (January) resulted in earlier flowering time of these plants and thus earlier occurence of their pollen in the air. In all three years, pollination peaks were recorded on the days characterized by temperature above 0 C and no or minimal percipitation. The results of the present study provide useful data for allergologists to reach accurate diagnoses, and timely information on airborne pollen types and concentrations for individuals with pollen hypersensitivity.

Airborne pollen; Betula; Corylus and Alnus; Zagreb (Croatia)

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