Historical Pollen Count - Raleigh

An excel file containing all of North Carolina Department of Environmental Quality historical pollen counts from 1999 to the 2016.  Gaps in the dates could be due to sampler issues and/or end of season.  Typically, pollen season is from February through November.   The counts listed are total pollen grains found for a particular type (weed, tree, or grass).  To get concentration (grains/m3) divide the pollen grains by 3.12.