The relationship between airborne pollen distribution and the frequency of specific pollen sensitization at two climatically different locations in Switzerland |
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Authors: | Thomas Frei Rocco Torricelli Annie Gérard Peeters Brunello Wüthrich |
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Institution: | 1. Swiss Meteorological Institute, Kr?hbühlstrasse 58, CH-8044, Zürich, Switzerland 2. Allergy Unit, Department of Dermatology, University Hospital, Gloriastrasse 31, CH-8091, Zürich, Switzerland
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Abstract: | Pollen data reported from the two monitoring stations of Locarno-Monti, on the southern slopes of the Alps, and Zurich on
the northern slopes of the Alps, for the years 1989–1993 were compared with meteorological data from the corresponding locations
and with the prevalence of pollinosis and frequency of specific pollen sensitization in patients with pollinosis. It was so
discovered that the recorded quantity of allergenic pollen types (Alnus, Corylus, Betula, Fraxinus, Poaceae, Castaneae,Olea andArtemisia) south of the Alps is higher by a factor of 2.9 than that north of the Alps. These differences are due to the distinctly
milder climate in the canton of Ticino (south of the Alps) showing higher annual mean temperatures, more sunshine duration
and less precipitation days with higher amounts of precipitation. The allergological data show additionally that the summer
pollinosis, caused byCastanea andOlea, is probably responsible for the differing prevalence of pollinosis at the two sites. Finally, we can summarize that in Switzerland
pollen from Poaceae, Betulaceae and Oleacea are the most important for pollinosis. |
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Keywords: | Climatic factors Pollen quantity Pollen sensitization Pollinosis prevalence |
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