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Spatial variations in the dynamics of the Alnus and Corylus pollen seasons in Poland |
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| Authors: | D Myszkowska B Jenner M Puc A Stach M Nowak M Malkiewicz K Ch?opek A Uruska P Rapiejko B Majkowska-Wojciechowska E Weryszko-Chmielewska K Piotrowska I Kasprzyk |
| Institution: | 1. Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, ?niadeckich 10, 31-531, Kraków, Poland 2. Department of Clinical and Environmental Toxicology, Jagiellonian University Medical College, Z?otej Jesieni 1, 31-826, Kraków, Poland 3. Department of Botany and Nature Conservation, University of Szczecin, Felczaka 3a, 71-412, Szczecin, Poland 4. Collegium Biologicum Adam Mickiewicz University, Umultowska 89, 61-614, Poznań, Poland 5. Department of Palaeobotany, Institute of Geological Sciences, University of Wroc?aw, Cybulskiego 30, 50-205, Wroc?aw, Poland 6. Faculty of Earth Sciences, University of Silesia, B?dzińska 60, 41-200, Sosnowiec, Poland 7. Department of Plant Ecology, University of Gda?sk, Al. Legionów 9, 80-441, Gda?sk, Poland 8. Military Institute of the Health Services, Szaserów 128, 00-909, Warszawa, Poland 9. Department of Clinical Immunology and Allergy, Medical University of ?ód?, Pomorska 251, 92-213, ?ód?, Poland 10. Department of Botany, University of Life Sciences in Lublin, Akademicka 15, 20-950, Lublin, Poland 11. Department of Environmental Biology, University of Rzeszów, ?wiklińskiej 2, 35-601, Rzeszów, Poland |
| Abstract: | The objective of this study was to analyse the dynamics of the Alnus and Corylus pollen seasons in Poland with reference to spatial and seasonal differentiation. Aerobiological monitoring was performed in 10 cities, in 1994–2007. Five characteristics defining the pollen season were considered: 1. beginning and end dates of the season phases (5, 25, 50, 75, 95% of annual totals), 2. pollen season duration (90% method), 3. skewness and 4. kurtosis of airborne pollen curves, and 5. annual pollen totals. The beginning of the Corylus pollen season in Warsaw started on the 53rd day of a year. The Alnus pollen season started 9.5 days (SE = 1.4) later. The start of the season for both taxa was delayed by 3.3 (SE = 0.5) days for each 100 km towards the east. The Corylus pollen season lasted about 15 days longer than the Alnus season. Season duration for both taxa decreased towards the east by 3.5 days (SE = 0.7) and towards the north by 1.3 days (SE = 0.6) for each 100 km. Seasonal dynamics of both taxa are skewed to the right. In cities located west of Warsaw the dynamics are more skewed (except at Szczecin, Wroclaw). Asymmetry decreases towards the east by 0.16/100 km. Almost all kurtosis values of pollen-season dynamics were positive and higher for Alnus. Kurtosis values for both taxa increase together with delay of the pollen season beginning by 4% per day (p < 0.0001). Mean pollen total increases: for Corylus mainly towards the north (by 64%/100 km), for Alnus mainly towards the west (by 15%/100 km). Geographical location (longitude and latitude) determines: the start and duration of the pollen season, skewness of the pollen curve, and annual totals. |
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