All important terms at a glance

the totality of pollen grains, "pollen" in singular and in plural use!

the number of pollen grains in the air of a certain location, expressed as daily mean value of pollen per cubic metre of air. Performed by means of "volumetric" pollen traps, and analysed under the microscope.

in the sense of aerobiology and pollen monitoring, the period of pollen release.

the delivery of pollen onto the female flower (stigma)

Sensitisation to more than one allergen (pollen types). Occurs often in the course of an untreated pollen allergy.

the allergen extract or the original allergen carrier is applied directly to the reactive organ (eye, nose, lung).