Dust can also contain small amounts of plant pollen, hair from people or animals, skin cells, and many other things.

This article focuses on allergic rhinitis due to outdoor triggers, such as plant pollen.

Antigens include bacteria, cells of transplanted organs, plant pollen and toxins.

A pollen calendar is used to show the peak pollen times for different types of plant pollens which cause allergic reactions in certain people.

Some are predatory, while others feed on plant pollen or nectar.

About 40 million Americans suffer from seasonal allergies, which are caused by plant pollens.

Substances you are exposed to only at certain times of the year, such as plant pollens, cause seasonal allergies.

Since 1980, he has been creating graphic artwork using pencil, dry pigments, and different plant pollens.

Major changes in plant pollen uncovered from lakebed cores in South America.

He holds the insect by the wings and examines the clusters of plant pollen attached to its front legs.