Pollen annual variation in the atmosphere of Ponferrada. Years 1995-96
DOI:
https://doi.org/10.24310/abm.v24i0.8520Keywords:
Aerobiology, Pollen, Ponferrada, NW SpainAbstract
The aim of thisstudy is to know the pollen concentration and its annual periodicity in the atmosphere of the city of Ponferrada (León, NW Spain). The aerobiological sampling was carried out using a Lanzoni VPSS-2000 sporetrap located about 10 m above ground level. Samples were collected in two consecutive years, 1995 and 1996. We have identified 66 different pollinic types for this sampling period but 96% of the samplescorresponded to only 22 types which formed the main pollinic spectrum for this sampling station. The amount of atmospheric pollen from September to December was very scarce and the maximum of pollen emissions was produced between January and July. The predominant pollinic types were: Cupressaceae (21,3%), Poaceae (19,2%), Pinaceae (12,6%), Quercus (10%), Castanea sativa (6,2%), and Betula (3,6%);these six types plus Alnus, Erica, Plantago, Populus, Rumex and Urticaceae included the 91,9% of the pollen present in the atmosphere of Ponferrada. Pollen from woody species was present in higher proportionthat pollen from herbaceous species. Clinic data revealed that the Poaceae pollens cause the main pollinic pathologies (60%) in the city of Ponferrada, followed by Plantago (27%), and Betula (12%) pollens.
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