[Pollen density calender in Tunisia].

The pollen calendar of the region on Tunis atmosphere was established and the weekly variations of the pollen density of the 25 main taxones were studied. This calendar showed an identity reflecting the surrounding vegetation modulated by the pollen production of neighbouring regions and other far-off areas. This should allow the allergist to predict the critical periods for the patients and to advice him the specific treatment. On the other hand, it would demonstrate the usefulness, in using a series of skin tests, certain European pollens which are partially or totally absent in the atmosphere of Tunis. However, it would be desirable controlling the allergic capacity of pollens which are not tested up to now and could be found in non negligible concentrations in the atmosphere.