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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

February 2020

Date Ash Elm Fungus Grass Juniper Mountain
Cedar
Pine
Feb 10315,03800460
Feb 2004,57300930
Feb 302016,124001550
Feb 40774,728001080
Feb 50232,6350000
Feb 6002,2480000
Feb 70000000
Feb 80775,116013900
Feb 9002,4480000
Feb 10002,8680000
Feb 11003,5650000
Feb 12002,4030000
Feb 13002,79007700
Feb 1401394,10807700
Feb 1502015,581017000
Feb 160315,9680186023
Feb 170776,3561621700
Feb 180166,356013900
Feb 19002,9480000
Feb 20003,5650000
Feb 2123164,80607700
Feb 220694,0311610800
Feb 230934,96107700
Feb 240164,4960000
Feb 2501395,271012400
Feb 2601706,27987700
Feb 270000000
Feb 280000000
Feb 29161555,1933117000

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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.