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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

September 2022

Date Elm Fungus Grass Mountain
Cedar
Pigweed Ragweed
Sep 1012,0930000
Sep 2014,6510000
Sep 3013,64380016
Sep 4015,038160031
Sep 5016,8990000
Sep 6016,89902300
Sep 7015,5810000
Sep 8015,42600031
Sep 9000000
Sep 10000000
Sep 11814,18600046
Sep 12000000
Sep 13014,03100862
Sep 143113,643003162
Sep 153112,5580016124
Sep 161612,558000170
Sep 173112,325000232
Sep 18012,093000232
Sep 193112,5580031403
Sep 20000000
Sep 21000000
Sep 22010,387000232
Sep 232311,373000325
Sep 24169,612008139
Sep 25000000
Sep 264612,015000372
Sep 271698,0440023480
Sep 2889,767000480
Sep 29000000
Sep 30000000

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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.