Spring airborne pollen data in two sites in Trentino (Northern Italy): a comparison with meteorological data |
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Authors: | Elena Gottardini Fabiana Cristofolini |
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Institution: | (1) Istituto Agrario, via Mach 2, I-38010 San Michele all’Adige (Trento), Italy |
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Abstract: | In this paper airborne pollen concentration is compared to meteorological data of Trento and S. Michele all’Adige, two sites
in the Adige Valley, in Trentino (North Italy). Pollen ofCorylus, Alnus, Betula andOstrya, four winter-spring flowering plants are considered. Pollen sampling was carried out in 1996 by volumetric Hirst-type samplers.
For all pollen types considered, maximum pollen concentration coincided in both stations and there was a good overlap of the
main pollen season length; the pollen curves of S. Michele a/A and Trento showed a highly positive correlation. The daily
airborne pollen concentrations, defined as the number of pollen grains per cubic meter of air (P/m3), were compared to daily meteorological data: minimum and maximum air temperature (°C), average relative humidity (%), precipitation
(mm), global incident radiation (cal/cm2), average wind direction (°) and wind speed (m/s). A highly positive correlation was found forCorylus and maximum temperature in both monitoring stations.Betula was positively, whereasOstrya was negatively correlated to relative humidity. With this first analytical approach sharp differences in the atmospheric
pollen presence between the stations located at Trento and S. Michele all’Adige were not found. |
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Keywords: | Aerobiology Pollen grains Meteorological data Correlation analysis Regression analysis |
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