Allergies & Pollen for Pittsburgh, Pennsylvania
9.2
Medium-High
Top Allergens:
Oak, Birch, Mulberry
Discussion
Concentration of pollen grains in the air for Sunday will be falling in the moderate range. This relief in pollen levels is caused in part by rising humidity, strong winds and heavy rains in the morning and evening which tend to wash pollen out of the air. That's good news for allergy sufferers.
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.