Abstract
To better understand atmospheric pollen transport and to define the allergic risks incurred by an individual throughout the day, airborne pollen was counted continuously for several weeks, using a Cour pollen trap inside and outside a house in Saint-Priest, a town east of Lyon, France. The results of this preliminary study revealed a large variety of pollen inside the house. Approximately 60% of the taxa found in the environment close to the house were also present inside the house during the same period. Ragweed pollen, which is responsible for severe seasonal allergy, was the most prevalent taxon. These results underline the importance of pollen grains accumulating inside a house. It therefore seems advisable to investigate the factors responsible for the variations observed in the proportion of pollen grains transported into the interior of a house and to estimate the potential impact on pollen-allergic patients.
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