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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 2021

Date Elm Fungus Mountain
Cedar
Pine Ragweed
Oct 105,5810046
Oct 206,35600108
Oct 305,19300511
Oct 4165,96800294
Oct 507,51900186
Oct 600000
Oct 700000
Oct 805,2710062
Oct 903,5650062
Oct 1004,26300108
Oct 1100000
Oct 1203,565016124
Oct 1306,3560046
Oct 1405,1160023
Oct 1506,0460031
Oct 1600000
Oct 1706,1240046
Oct 1806,8990831
Oct 1905,1930023
Oct 2006,51116046
Oct 2100000
Oct 2200000
Oct 23316,43423046
Oct 2405,58116831
Oct 2500000
Oct 2600000
Oct 2704,8830016
Oct 28315,1930460
Oct 29314,18623160
Oct 3000000
Oct 3100000

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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.