Allergies & Pollen Count for Harrison, South Dakota

Today's Condition

11High

Top Allergens:

Ragweed, Chenopods, Nettle

Pollen Index

9.7 - 12 - High

Very high pollen levels. Symptoms are likely for most people with pollen allergies.

7.3 - 9.6 - Medium - High

High enough pollen levels that most allergy sufferers will notice symptoms.

4.9 - 7.2 - Medium

Moderate pollen levels. Many people with allergies may start experiencing symptoms.

2.5 - 4.8 - Low - Medium

Small amounts of pollen present. Highly sensitive individuals may notice mild symptoms.

0.0 - 2.4 - Low

Very little pollen in the air. Most people with pollen allergies will not experience symptoms.

Discussion

Pollen concentrations for Friday will be falling but will remain in the very high range. This relief in pollen levels is caused in part by lack of strong winds.

Allergy Facts

Gram for gram, ragweed pollen is more allergenic than other types of pollen. One study found ragweed pollen 2-5 times more allergenic than tree pollen, up to 2 times more allergenic than grass pollen, and up to three times more allergenic than other weed pollen.