Allergies & Pollen Count for Columbia, Maryland

Today's Condition

1.8Low

Top Allergens:

Ragweed

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

Concentration of pollen grains in the air for Friday will be on the increase but will still remain in the low range. Since the weather has a major influence on pollen dispersal, this increase is due in part to higher temperatures and the lower dewpoint.

Allergy Facts

Mountain cedar is a preeminent allergen source. This species grows abundantly from the low limestone hills of western Texas to the mountains of central Mexico and sheds pollen copiously from late fall until late winter.