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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

March 2019

Date Ash Elm Fungus Grass Hickory Juniper Maple Mulberry Oak Pine
Mar 10162,40300770000
Mar 2003,17800460000
Mar 30162,2480000000
Mar 4001,9370000000
Mar 5002,4030000000
Mar 6003,6430000000
Mar 70463,95300620000
Mar 80464,57316069316208
Mar 90464,883006223000
Mar 100936,12400108466200
Mar 11004,031001084601616
Mar 120775,1160093310230
Mar 130314,1080042160031
Mar 140624,18631077540160
Mar 150465,11600774606216
Mar 160234,031000460160
Mar 170776,04600311240230
Mar 180625,8130077460310
Mar 1916625,5030046232077186
Mar 20231085,1930023218606277
Mar 210000000000
Mar 2201085,1166201638709331
Mar 230934,5736204640307762
Mar 24312015,968620462480770
Mar 2502326,1240077341316216
Mar 2601395,96831163117007716
Mar 270000000000
Mar 280626,8213102324804631
Mar 29312175,91346001,1931,84410816
Mar 30422486,3583104297663531023
Mar 310000000000

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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.