The emission of mugwort pollen (Artemisia vulgaris L.) and its flight in the air

Mugwort pollen flight and pollen emission are characterized by a distinct biological rhythm with emission in the early morning hours (6:00–11:00 a.m. CEST). Pollen traps at roof level monitor the daily and yearly variation of mugwort pollen flight later and in lower quantities than those installed at ground level because of the different daily variation of convection at various air levels. The daily variation of mugwort pollen flight can be described by mathematical functions. Because of these significant differences between the catch at different levels, the supposed high allergic potential of mugwort has to be discussed.