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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
Plantain
Fungus Grass Juniper Maple Mountain
Cedar
Mulberry Oak Pine
Mar 10003,41003100000
Mar 200000000000
Mar 30003,565012400000
Mar 40003,17806200000
Mar 5023204,108010800000
Mar 64631006,58931170000016
Mar 77748005,5033118643400016
Mar 804603,5650693100038
Mar 9169304,961231861700000
Mar 1004605,271162313900031
Mar 1102304,5730624600016
Mar 1203104,883077310000
Mar 1304605,34803120100062
Mar 1401602,635461781600031
Mar 1503103,2550621080000
Mar 1606204,4960314600031
Mar 1702303,72016317700016
Mar 180314,03100467700016
Mar 190004,2630627700016
Mar 2007704,4183146558038708
Mar 2102304,57316314804224800
Mar 2201603,8750934800186031
Mar 230004,108031325038700
Mar 2404605,271031232017000
Mar 2501605,1163123263032500
Mar 26163104,80646311,3170310170155
Mar 27163104,03146621,0540186139232
Mar 280003,87500232031016
Mar 290001,7051606200160
Mar 3006205,11631054202324616
Mar 3101605,271005580186460

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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:

NAB SCALE

* MOLD GRASS TREE WEED
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.