Allergies & Pollen for Portland, Oregon
2.1
Low
Top Allergens:
Oak, Ash, Grass
Discussion
Concentration of pollen grains in the air for Sunday will be higher than they were today in the moderate range. This rise is a result of higher temperatures and the lower dewpoint. If you do suffer from allergies tomorrow could be more difficult.
Allergy Facts
The grass family is probably the most important plant family in the world. It is a family consisting of about 10,000 species and makes up approximately 20% of the planet's vegetation.