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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 2017

Date Ash Elm Fungus Grass Juniper Maple Mountain
Cedar
Mulberry Oak Pine
Feb 1003,17800077000
Feb 2002,32500031000
Feb 3001,7020008000
Feb 4001,6270000000
Feb 5002,248000186000
Feb 60464,108000356000
Feb 7003,178000341000
Feb 80312,403000356000
Feb 9002,248000139000
Feb 10002,480000124000
Feb 110312,480077016000
Feb 1201392,01509300000
Feb 13001,937018600000
Feb 140772,01504600000
Feb 15002,790010800000
Feb 160462,248013900000
Feb 170000000000
Feb 18622321,7820003100046
Feb 190622,0150186000016
Feb 2062771,937023200000
Feb 2131932,4030248000016
Feb 22312717,596165892790000
Feb 23771864,88304491390000
Feb 24461394,80402171700000
Feb 25461392,325021740300016
Feb 26311862,17082322010000
Feb 2746772,325024827900031
Feb 28771553,5650186460311646

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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.