A Major Source of Early Spring Allergens Airborne pollen is one of the most annoying and common allergens, and it causes 35 million people to suffer from upper respiratory allergy symptoms each year.
Pollen allergy is one of the most common chronic diseases in the United States.
Accurate diagnosis should always include on detailed patient history and testing by your allergist. Each spring microscopic oval and circular tree pollen particles are released to hitch a ride on currents of air. Their mission is to fertilize other trees of the same species. Insects do this for some trees but for most the wind is relied on. Small, dry and light, pollen granules have been known to travel as far out as 400 miles out to sea and up to two miles high in the air.