Allergies & Pollen Count for Troutdale, Oregon
Today's Condition
Discussion
Concentration of pollen grains in the air for Friday will be falling and will remain in the very low range. Since the weather has a major influence on pollen dispersal, this decrease is due in part to rising relative humidity and relatively weaker winds.
Allergy Facts
Pollen grains can be found nearly everywhere in the world including the bottoms of lakes and in ice cores in Greenland and the Arctic. Much of this pollen is transported from distant places by the wind.