Forecast

The mugwort is still in full bloom!

In Vienna, the peak of the heatwave is behind us and temperatures are not expected to exceed 30°C in the coming days. However, as the first rainfall is not expected until Wednesday, the impact of fungal spores and pollen is unlikely to diminish for the time being. The rainfall forecast from the middle of the week could bring some short-term relief.

Mugwort is in bloom in Vienna, and we will still be in its peak blooming phase in the coming days. For people who are sensitised to this composite plant, this means a high level of stress. In particular, the highest levels of exposure are to be expected in places where mugwort can thrive - for example on dry grassland, on field or roadsides and in other areas heavily influenced by humans.

The number of flowering ragweed plants in and around Vienna continues to increase, as does the amount of pollen from this neophyte in our monitoring centre. At present, no widespread exposure to ragweed pollen is to be expected in the capital. However, this will change in the coming weeks as more and more plants reach the flowering stage and the long-distance transport of ragweed pollen from the surrounding area will also increase.

If you discover ragweed populations during outdoor activities, you are welcome to report them via the citizen science platform "Ragweed Finder". Reports can be made either via the website ragweedfinder.at or via app (for Android and iOS). They are checked by experts from the "Ragweed Finder" team, displayed graphically on the ragweed map and forwarded to the relevant authorities in the federal states at regular intervals. They can then use the reports to take further action.

In the Vienna Woods, on green spaces or along roadsides, the late-flowering grasses continue to dust. One example of this is dog's tooth grass. Exposure to grass pollen remains low.

However, plantain and stinging nettle can also continue to cause exposure.

People who are sensitised to fungal spores must also expect intensive exposure in the coming days.

Other types of pollen detected in the ambient air are bindweed, hemp, hops, umbellifers, goosefoot, cloves and cypress. These are of minor allergological significance.