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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

July 2019

Date Elm Fungus Grass
Jul 106,1240
Jul 205,96816
Jul 305,9680
Jul 405,2710
Jul 505,5818
Jul 605,2710
Jul 707,4410
Jul 807,5190
Jul 906,82116
Jul 1005,5810
Jul 11168,52716
Jul 1208,6820
Jul 13000
Jul 1407,13116
Jul 1506,5890
Jul 1607,59616
Jul 1707,9060
Jul 1805,1930
Jul 1904,1860
Jul 2004,57323
Jul 2103,7980
Jul 2203,9530
Jul 2305,19331
Jul 2403,7200
Jul 2504,7280
Jul 2603,7980
Jul 27000
Jul 28000
Jul 2903,7208
Jul 30000
Jul 3104,9610

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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.