Daily Pollen Report

This report will be updated by 3:30 pm each business day.

Friday, May 18, 2012
    2323   3636   3030  
    Trees
Low
  Grasses
Moderate
  Weeds
Moderate
 
  Pollen Rating: Moderate
  Predominant Type: Grasses
Measured Pollen Data
Pollen
Rating
Rating Scale
(PRS)
Density
(grains/m3)
Trees Low 23 13
Grasses Moderate 36 11
Weeds Moderate 30 17

Discussion:

POLLEN DISCUSSION: Friday, 5/18/2012 Today’s GRASS pollen rating is 36 (MODERATE). Today’s WEED pollen rating is 30 (MODERATE). Today's TREE pollen rating is 23 (LOW): 50% cedar, 33% pine, 11% mulberry and 6% hickory. Mostly sunny skies with daytime high temperatures in the upper-70s are forecast for the next three days. Nighttime temperatures will be in the 50s. Winds will be light to moderate. Our Pollen Reports are available on Twitter (http://twitter.com/ForsythPollen) and Facebook (http://www.facebook.com/ForsythPollen). (YOUNG)
Pollen Forecast (Pollen Rating Scale - PRS)
Saturday
5/19/2012
Sunday
5/20/2012
Monday
5/21/2012
Tuesday
5/22/2012
Trees 20 22 25
Grasses 40 45 20
Weeds 39 36 34
Pollen Rating Scale (PRS) Guide
When PRS Values are equal to:
0 Absent
Allergy sufferers with sensitivity to this group of pollens should not experience symptoms.
1-25 Low
Only individuals extremely sensitive to aeroallergens of this type will experience symptoms.
26-50 Moderate
Many individuals sensitive to aeroallergens in this group will experience symptoms.
51-75 High
Most individuals with any sensitivity to this group of aeroallergens will experience symptoms.
≥76 Very High
Almost all individuals with any sensitivity to these aeroallergens will experience symptoms. Extremely sensitive people could have severe symptoms.
PRS related to Pollen Density (grains per cubic meter)
Rating PRS Trees
Density
Grasses
Density
Weeds
Density
Absent 0 0 0 0
Low 1-25 1-14 1-4 1-9
Moderate 26-50 15-89 5-19 10-49
High 51-75 90-1499 20-199 50-499
Very High >=76 >=1500 >=200 >=500

These pollen density ranges are based upon the NAB Scale ranges suggested by the National Allergy Bureau (NAB) of the American Academy of Allergy, Asthma & Immunology (AAAAI).


For more information contact:
Monitoring and Mobile Sources Division, Pollen Monitoring Program
by telephone: (336) 703-2440
or email: akojelg@forsyth.cc