Allergies & Pollen Count for Cedar Falls, Iowa
Today's Condition
Discussion
The quantity of pollen grains in the air for Tuesday will be falling into the extremely low range. This change results in part from rising humidity, strong winds and heavy rains in the morning and evening which tend to wash pollen out of the air.
Allergy Facts
Giant ragweed plants are able to dominate other plants by blocking light from reaching them. One study found that ragweed's canopy is able to reduce light reaching plants beneath it by 95%.