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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

June 2022

Date Ash Elm Fungus Grass Maple Oak
Jun 1009,7671600
Jun 20012,790000
Jun 30814,65123160
Jun 402312,55831160
Jun 5000000
Jun 60014,5733100
Jun 70015,3484600
Jun 80017,4413100
Jun 916011,31746310
Jun 100012,94531238
Jun 11311612,868800
Jun 120011,7823100
Jun 13000000
Jun 140010,4651600
Jun 150811,5501600
Jun 160010,000800
Jun 1701612,86831230
Jun 180014,6514680
Jun 19000000
Jun 200013,875800
Jun 210015,4261600
Jun 220012,093000
Jun 230011,8602300
Jun 24009,767000
Jun 2502310,5421600
Jun 26009,7674600
Jun 27000000

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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.