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Two-thirds of all physician office visits are for ear, nose, throat or allergic problems!

Today’s Pollen Count

Pollen Archive

March 2018

Date Ash Elm English
Fungus Grass Juniper Maple Mulberry Pine
Mar 10003,410031000
Mar 2000000000
Mar 30003,5650124000
Mar 40003,178062000
Mar 5023204,1080108000
Mar 64631006,589311700016
Mar 77748005,50331186434016
Mar 804603,56506931038
Mar 9169304,9612318617000
Mar 1004605,2711623139031
Mar 1102304,57306246016
Mar 1203104,8830773100
Mar 1304605,348031201062
Mar 1401602,6354617816031
Mar 1503103,25506210800
Mar 1606204,49603146031
Mar 1702303,720163177016
Mar 180314,031004677016
Mar 190004,26306277016
Mar 200770031465583878

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NAB: Reading the Charts

aaaai allergy pollen countsThe following Aeroallergen Network calculations are based on the data (per cubic meter) reported by all certified counting stations for trees, grasses, weeds and molds.

  • Median or 50th percentile (half of counts are below this point)
  • 75th percentile (75% of counts are below this point)
  • 99th percentile (99% of counts are below this point)

Based on these calculations, we suggest the following definitions for low, moderate, high and very high concentration levels:


0 Absent 0 Absent 0 Absent 0 Absent
1 – 6499 Low 1 – 4 Low 1 – 14 Low 1 – 9 Low
6500 – 12999 Moderate 5 – 19 Moderate 15 – 89 Moderate 10 – 49 Moderate
13000 – 49999 High 20 – 199 High 90-1499 High 50 – 499 High
>50000 Very High >200 Very High >1500 Very High >500 Very High


* These mold levels were determined based on outdoor exposure to natural occurring spores in the environment and should not be applied to indoor exposure which may represent an entirely different spectrum of spore types.

These definitions would allow comparison between sites across the country. They are based on ecological measurements, not health effects. However, assuming dose/response relationships are the same across the country, the definitions are probably more appropriate than a definition based on local numbers. This does mean that, for some stations, some categories will never be high.