Pollen is an important source of allergens in the natural environment, and the cause of the appearance of symptoms of allergic disease in hypersensitive individuals. In our laboratory, we monitor 60 types of pollen of various allergenic potential, and publish the results of measurements from different phytogeographical areas in Slovenia. Data on daily concentrations, together with many years of experience, are the basis for making short-term forecasts about pollen air pollution.

Pollen calendar in Slovenian language is available here.

Pollen forecast

Forecast from March 25 to April 1, 2025

The pollen burden in the air will depend on changing weather conditions, with higher loads expected during longer dry periods.

Birches in thermally favorable growing areas are already releasing pollen, in lowlands the loads may increase very quickly during dry weather. The season of the related hornbeam is underway, increasing the air burden with birch-related allergens. The ash season is in full swing, pollen loads will be moderate to high. Low-allergenic poplar and willow are blooming, with high pollen levels in close proximity. There will also be pollen from maple, elm, cypress, and yew in the air, as well as individual grains of alder and hazel.

In the coastal region, the season of European hop-hornbeam and hornbeam has started, the loads will gradually increase to high values. Cypress pollen loads will be moderate, while ash pollen loads will remain low. Pollen from poplar, willow, elm, pine, and maple will also be present.

Write to pelodinfo@nlzoh.si for more information.