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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

November 2017

Date Elm Fungus Grass Mountain
Cedar
Ragweed
Nov 104,263000
Nov 205,038000
Nov 304,7280031
Nov 405,193008
Nov 504,263000
Nov 604,7280016
Nov 786,20101616
Nov 804,108000
Nov 903,953000
Nov 1003,5650160
Nov 1104,8830310
Nov 1205,968000
Nov 1305,271000
Nov 1404,573000
Nov 1505,5030230
Nov 1607,109000
Nov 1707,4900160
Nov 1806,2450230
Nov 1907,054000
Nov 2006,3560310
Nov 2105,891000
Nov 2205,038000
Nov 2300000
Nov 2406,8210310
Nov 2505,658000
Nov 2606,5110460
Nov 2705,5030160
Nov 2804,5731600
Nov 2904,728000
Nov 3004,496000

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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.