Allergy sufferers should therefore expect major hay fever problems, MeteoNews reported on Friday. The hazel and alder pollen season has been in full swing at low altitudes for some time.
In the past two weeks, pollen concentrations have fluctuated depending on the weather and temperatures and have been moderate at times, and temporarily high in mild and fog-free weather in the Alpine valleys.
The pollen release of hazelnuts and alders is very strongly temperature-controlled. “The higher the temperature, the higher the concentration,” says MeteoNews. It also has to be dry, otherwise the pollen will be washed out of the air.
According to the weather service, temperatures will drop slightly from Tuesday, with occasional rain. This will significantly reduce the pollen concentrations again. Next, ash trees at low altitudes are expected to start flowering in the first half of March, according to the report.
In a long-term comparison, the pollen season began at the end of January with hazel and alder pollen starting to bloom at low altitudes at about the normal time. In the south, they were on the move earlier.
Translated from German by DeepL/ts
This news story has been written and carefully fact-checked by an external editorial team. At SWI swissinfo.ch we select the most relevant news for an international audience and use automatic translation tools such as DeepL to translate it into English. Providing you with automatically translated news gives us the time to write more in-depth articles.
If you want to know more about how we work, have a look here, if you want to learn more about how we use technology, click here, and if you have feedback on this news story please write to english@swissinfo.ch.
Popular Stories
More
Climate adaptation
Why Switzerland is among the ten fastest-warming countries in the world
Has your continent reached its peak or is there still potential for economic growth?
Some regions of the world are on an upward trajectory with the promise of a steadily improving future. Where do you live? And in which direction is your region or continent developing?
Living longer: What do you think about the longevity trend?
The longevity market is booming thanks in part to advances in the science of ageing. What do you think of the idea of significantly extending human lifespan?
You can find an overview of ongoing debates with our journalists here . Please join us!
If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.