The University of Tulsa
Aerobiology Lab
How to interprete low, moderate, and high, pollen counts
There are no agreed upon cut offs for what is considered low, moderate, high, and very-high pollen counts; however, the National Allergy Bureau (part of the the American Academy of Allergy, Asthma, and Immunology) posts the pollen counts from their network of sampling stations throughout the country. The NAB has suggested categories for the pollen counts based on averages from the network. See Reading the Charts at the National Allergy Bureau web site.