Issued 5th of August 2021
Situation and medium-term forecast
Moderate mugwort pollen burden in eastern and southern Austria!
The weather forecast promises changeable weather conditions for western Austria. This will keep the pollen concentrations low. In the east and south of Austria, a sunny weekend may promote pollination and can lead to moderate to high pollen concentrations.
Mugwort is flowering in Burgenland, Carinthia, lower and upper Austria, Styria, and Vienna. In the eastern parts of Austria, moderate to high pollen levels can be possible during sunny phases. Pollen allergy sufferers sensitized to mugwort should avoid the vicinity of large stands of this plant.
In Burgenland and Styria, the number of flowering ragweed-specimens has increased. Pollen allergy sufferers sensitized to this neophyte should avoid infested fields and roadsides. In the neighboring countries to the east, ragweed is now in full bloom. On days with easterly winds, long-distance transport of ragweed-pollen can cause additional allergenic burden.
During this week only low grass pollen concentrations were registered in our sampling stations. The late-blooming grasses remain flowering in the Austrian lowlands. Due to the delayed flowering sequence at higher elevations, flowering grasses may still be encountered on meadows. Also, in forests and at their edges higher pollen concentrations may locally occur. Pollen allergy sufferers sensitized to grass pollen should avoid these areas.
Corn continues flowering in the Austrian lowlands. Corn produces one of the larges pollen in the plant kingdom. Therefore, it does not remain airborne for long distances. Grass pollen allergy sufferers should avoid the vicinity of flowering cornfields.
Plantain continues flowering on meadows and in green areas. Its pollen may intensify the allergenic burden.
The nettle pollen concentrations remain on a moderate level. Luckily its pollen is only of low allergenic importance.
The Canadian goldenrod, a neophyte, is now in bloom. Allergenic reactions can only be triggered after direct contact to this plant.
Currently, the fungal spore concentrations are reaching moderate to high levels. This trend will continue over the weekend. The fungal spore concentrations decrease during rainfalls but will return to high levels in sunny phases after the rain.
What else: The pollen spectrum contains pollen from Mercurialis, cypresses and the goosefoot family in addition, which is of low allergological importance.
Responsible for the content:
pollenwarndienst.at and the Department of Oto-Rhino-Laryngology of the Medical University Vienna, Research group aerobiology and pollen information
Uwe E. Berger MBA, Mag. Maximilian Bastl PhD and Mag. Dr. Johannes Bouchal
medium-term forecast based on model and pollen data from Austria and surrounding countries
reprint and publication in parts or completely is permitted only quoting the source
weather data and today´s forecasts based synoptic data: ZAMG (Zentralanstalt für Meteorologie und Geodynamik)