Forecast

Sunshine continues to allow intensive grass pollen flight!

The rain on Monday only led to a short-term reduction in pollen concentrations in the ambient air. Increased levels have been registered again since Tuesday and are expected to continue over the long weekend. However, if there are warm thunderstorms in the evening, there could be a brief relief.

The Danube Island Festival will be taking place in Vienna over the next few days. Numerous music, cultural and sporting events offer a varied programme and are expected to attract many visitors to Vienna's Danube Island again this year. As the event takes place outdoors, allergy sufferers can expect to be exposed. Grass pollen will be of particular concern over the next few days. In addition, the dust stirred up during the concerts can cause respiratory irritation in allergy sufferers. In order to be optimally prepared for your visit, we recommend consulting the hourly allergy risk.

Grass pollen usually causes a high allergic load during the coming days. In addition to couch grass, grass grass, smooth oats, oats, crested wheatgrass, bluegrass, ryegrass and timothy, some cereal fields are still in bloom.

In meadows, plantain and dock can be an additional burden.

The green alder has passed its flowering peak in most regions. Relevant pollen concentrations can now only occur in the immediate vicinity of the plants. Green alder pollen can cause stress in people who are sensitised to the birch family. Relevant amounts of pollen are only rarely expected to reach the valleys.

The sweet chestnut blossoms. Although it is categorised as a low allergen, cross-reactions can often occur due to structural similarities between the main allergen and birch.

The tree of heaven blooms. Although this neophyte is actually insect-pollinated, its pollen is frequently found in the air. Not much is yet known about its allergenic potential, but allergic skin reactions have already been documented.

Privet, which is currently in flower, can cause allergic reactions in some people who are sensitised to the pollen of olive trees, but as this plant is pollinated by insects, relevant pollen concentrations are only to be expected in the immediate vicinity.

Moderately high concentrations of fungal spores are registered at our measuring points in the lowlands and valleys. After rain showers, there may be a spontaneous increase in concentrations.

A brief outlook for late summer: From August onwards, intensive exposure to ragweed pollen can be expected again in south-east Austria. If you discover populations of this neophyte during outdoor activities, you can report them via the citizen science project "Ragweed Finder". The information collected will be verified by experts and forwarded to the relevant authorities of the provincial government. If you report findings now, appropriate steps can sometimes be taken before the plants flower, thus preventing the release of pollen. You can report findings either via the app (for Android and iOS) or on the website. There you will also find further information about ragweed and can view the reports from previous years.

Other types of pollen in the ambient air: nettle, umbellifers, goosefoot and buttercup plants as well as elderberry, lime, clove plants, sour grasses, wine and cypress plants. These are of minor allergological importance.