Comparison of air-borne pollen at Louvain-la-Neuve (Belgium) and Basel (Switzerland) during 1979 and 1980

Abstract

The pollen production for both years was three times higher in Basel than at Louvain-la-Neuve. The interpretation of the pollen calendars showed an average onset of eight days earlier in 1979 and five days earlier in 1980 for the taxa in Basel. The pollen catch for both stations was greater in 1980 than in 1979, which was characterized by an average delay in the onset of pollen shedding both in Basel and at Louvain-la-Neuve.