Spring showers stir up tiny pollen particles Today’s Video of the Day from the National Science Foundation describes why spring allergies may actually intensify after a rain shower, even though rain is expected to clear pollen from the air.
Researchers at the University of Iowa have discovered that spring rainfall stirs up microscopic particles of pollen that linger in the air for hours after rainfall subsides. Pollen from plants with colorful flowers usually do not cause allergies. Plants that produce a powdery pollen can easily be spread by the wind and can cause allergy symptoms. Spring allergies are often caused by tree pollen early in the season.
Spring showers stir up tiny pollen particles as shown in the video above showing the wind helps pollen travel from the source of the allergen to our respiratory system. Windy conditions stir up dust, mold, pollen and this may activate allergies, according to Weather Underground. The tiny pollen particles can also travel far from its originating point in the wind.
The study was funded by the National Science Foundation.
Image Credit: NASA Earth Observatory