High quantities of spores from meadow and wood mushrooms (basidiospores) are usually carried in the air on October.


Some of these spores may cause respiratory allergy.


Good to know:

  • For Cladosporium 3.000 spores per m³ are sufficient to induce respiratory problems in sensitized persons. For Alternaria 500 spores per m³ are enough.
  • Pine trees produce huge quantities of pollen grains that may be observed as a yellow deposit on different outdoor surfaces (cars, garden furnitures, etc.). This pollen does not cause allergies.