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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 2021

Date Cotton
Wood
Elm Fungus Grass Maple Pine
Jun 131017,054000
Jun 2170018,9923100
Jun 323016,899000
Jun 446015,3481600
Jun 5000000
Jun 677017,90631016
Jun 7108020,0773100
Jun 831018,2174600
Jun 90016,7441600
Jun 1023019,302800
Jun 110018,3723180
Jun 1203115,813000
Jun 1301615,891800
Jun 1477014,8833100
Jun 151232314,2632300
Jun 16771614,341000
Jun 17932313,643000
Jun 1877811,3171600
Jun 1946012,093800
Jun 20000000
Jun 2131011,782800
Jun 22773110,232000
Jun 23000000
Jun 2462011,937000
Jun 25000000

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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.