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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

October 2020

Date Elm Fungus Grass Mountain
Cedar
Pigweed Ragweed
Oct 1317,906000232
Oct 2318,139000139
Oct 306,8990016108
Oct 405,581000170
Oct 5167,364000139
Oct 6167,906000139
Oct 7000000
Oct 8936,7444600403
Oct 9317,0541600449
Oct 10236,4348016170
Oct 11316,899000217
Oct 1207,209000108
Oct 13467,364000232
Oct 14626,356000139
Oct 15315,5811600186
Oct 161611,627816062
Oct 1709,612031062
Oct 1809,767031077
Oct 1907,596016062
Oct 2006,821016046
Oct 21168,5270230124
Oct 2206,744062031
Oct 2307,59600016
Oct 2406,27900031
Oct 2504,3410000
Oct 2606,5890000

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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.