What is yellow dust

Pollen - Where does the yellow pollen dust come from?

Fine dust turns yellow in many cities these days. What sounds idyllic is a nuisance for many. Sidewalks, cars, windows, bicycles, and even furniture are covered in a sticky layer of pollen. The phenomenon is also a problem for allergy sufferers.

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Anyone who suspects the blooming rape behind it is wrong, however. It is the pollen count of the spruce that is particularly severe this year. The reason: "This year there were ideal flight conditions for the pollen," says Christina Endler from the German Weather Service (DWD). “It was dry, there was a lot of sunshine and light wind.” In addition, the cold start of the year slowed down the pollen - in March the temperatures were partly below zero. The above-average warm April then caused an "explosion" of the pollen, according to the expert.

"Rain washes the air clean again"

Not only in the spruce, but also firs and hardwoods such as beeches now sprout more, says forester Bernd Gallas. In contrast to many drivers, he can gain a lot from the yellow dust: “When the trees are in bloom, it is a sign that there is a lot of fruit. For example beechnuts. ”That is something positive for nature, because it means natural regeneration for the forest. “A new forest is created by itself,” explains Gallas.

An end to the pollen load from the spruce is not yet in sight, to the delight of Gallas and to the suffering of all allergy sufferers. That now depends on the weather, said Endler. The precipitation values ​​would play a particularly important role. "Rain washes the air clean again." For the coming days, however, bright sunshine is the order of the day.

From jau / RND / dpa