Receive Allergy Updates Via Email:

Receive allergy counts, news and information on allergy testing via email by joining our e-newsletter list.
Sign Up Now



Did you know?

Two-thirds of all physician office visits are for ear, nose, throat or allergic problems!

Today’s Pollen Count

Pollen Archive

October 2017

Date Elm English
Plantain
Fungus Grass Mountain
Cedar
Pigweed Ragweed
Oct 10000000
Oct 216011,550000395
Oct 36205,581000193
Oct 41606,511000108
Oct 5007,598000170
Oct 63107,906000217
Oct 7007,131000139
Oct 86205,8131600139
Oct 93106,046000139
Oct 102305,038000186
Oct 11008,6040016108
Oct 121608,217000124
Oct 13007,596000170
Oct 14005,73600093
Oct 153106,2010016217
Oct 163107,1310046263
Oct 17006,511000108
Oct 18006,8990016108
Oct 19005,968000124
Oct 201605,27100077
Oct 21005,42600077
Oct 22006,12400093
Oct 23004,80600062
Oct 241605,42600031
Oct 25003,72000016
Oct 26005,426031160
Oct 27004,72800016
Oct 2804,341000031
Oct 29005,03801600
Oct 30004,1860000
Oct 31004,49600031

Subscribe to our Daily Pollen Count RSS Feed!

 

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.