Forecast

Early bloomers fade out - ash pollen season begins!

According to last week's report, weather conditions will be changeable in the coming days, with alternating sunny and unsettled periods. While mild and sunny spells will favour pollen production and dispersal, clouds and precipitation may temporarily reduce pollen concentrations locally.

We are now in a transitional phase: early bloomers such as alder and hazel are gradually ending their flowering, especially in the valleys. Pollen concentrations are continuing to fall, even though pollen may still occur in isolated cases, especially at slightly higher altitudes.

Alder pollen: Alder pollen concentrations are decreasing and are now mostly low at low altitudes as the flowering period comes to an end.

Hazel pollen: The hazel pollen is also decreasing and is mostly low. However, moderate levels can still occur locally, especially at higher altitudes.

Ash pollen: The ash pollen season is now beginning. The first pollen concentrations are being recorded in the region and low to moderate levels are expected in the coming days. Forsythia is also currently in bloom. Although it belongs to the olive tree family (Oleaceae) like the ash tree, it is not a significant airborne allergen. Complaints are usually due to ash pollen in the air or very close contact with flowering forsythia.

Outlook - Birch: The birch catkins are not yet mature and no birch pollen has yet been detected in our pollen traps.

Other pollen types: We are currently also detecting pollen from poplar, elm, willow and from the family of cypress family However, these have a low allergenic relevance.

Situation at higher altitudes: At altitudes above around 1500 metres, vegetation development is still delayed. No relevant pollen load is to be expected there and there is currently no allergenic risk.

Overall, the pollen count is expected to remain low to moderate in the coming days, with fluctuations depending on the weather conditions. We will continue to monitor the situation closely and keep you regularly informed.