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Historical Pollen Count - Raleigh

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Created: Oct 13, 2016 at 8:33 p.m.
Last updated: Feb 01, 2017 at 4:46 p.m.
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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. 

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This resource has been replaced by a newer version Idaszak, R., H. Demo (2017). Historical Pollen Count - Raleigh, HydroShare,

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Idaszak, R., H. Demo (2017). Historical Pollen Count - Raleigh, HydroShare,

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