Pollen Forecast for Washington, Virginia
Medium-High
Maple, Elm, Poplar/Aspen/Cottonwood
Discussion
The amount of pollen in the air for Thursday will be greater than today's levels in the high range. The cause for the rising pollen levels is rising temperatures.
Allergy Facts
Although most elm trees pollinate in the spring, some species flower (shed pollen) in the fall. Chinese elm, which is common in the south and California, pollinates in the late summer through October.