Pollen Alerts For Lionville, PA

Pollen Index: 10.3 Pollen Level: high Predominant Pollen: Ragweed, Chenopods and Grass. The amount of pollen in the air for Saturday will be falling but will remain in the high range. This relief in pollen levels is caused in part by rising humidity, relatively calmer winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air.