Louise Slatten

Calculating Pollen in Duluth

A look at how pollen levels are calculated here in Duluth

DULUTH, Minn.- Doctors are expecting this to be a particularly bad allergy season with all kinds of trees blooming in a short period of time. Today, we got a behind the scenes look at how pollen levels are calculated here in Duluth. On the roof of Essentia Health, there is a small spinning device that has a grease stick attached…