Allergies & Pollen for Washington, District of Columbia
9.4
Medium-High
Top Allergens:
Oak, Mulberry, Birch
Discussion
Based on past pollen counts and expected weather conditions, pollen levels for Sunday will be falling but will remain in the high range. This decrease is due to rising humidity, weak winds and expected precipitation in the morning and evening which tends to wash pollen out of the air.
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.