Pollen Forecast for Merrimack, New Hampshire
Low-Medium
Elm, Cedar/Juniper, Poplar/Aspen/Cottonwood
Discussion
Pollen concentrations for Friday will be falling in the low range. This relief in pollen levels is caused in part by rising humidity, weak winds and expected precipitation in the morning, afternoon and evening which tends to wash pollen out of the air.
Allergy Facts
The box elder tree is the most allergenic of the maple family. It is commonly found in the Midwest.