Pollen Monitoring

Pollen and mold counts measure the amount of airborne allergens from trees, grass, weeds and molds that is present in the air. Pollen and mold spores are collected using a Burkhard sampler which operates continuously for a 24 hour period. Airborne pollen and mold is collected on slides and then analyzed by an aero biologist to determine the quantity and type of each pollen or mold present on the slide. The quantity determines the pollen count for the day.

Daily Pollen Count Of Islamabad
Daily Pollen Count of Lahore

Interpretation of pollen and mold counts and their relationship to allergy symptoms is complex. The symptoms experienced by allergy sufferers vary from patient to patient and at varying level of pollen and mold concentrations.

Weather can also influence allergy symptoms. Allergy sufferers often find relief on rainy, cloudy or windless days because pollen movement is limited during these days. Hot, dry and windy conditions result in higher pollen and mold concentrations, and increased allergy symptoms. Because pollens are microscopic particles they are easily spread over great distances by wind, and can result in the detection of pollen which may not be in seasonal in the local area.

Pollen counts are measured in grains per cubic meter and are assigned a severity level based upon the concentration found on the slide. The scale, developed by the American Academy of Allergy, Asthma & Immunology™s National Allergy Bureau, used to assign the severity level is found below.

Pollen Measurement Scale
Pollen Type Low Moderate High Very High
The above data were Grains per cubic meter:  
Trees 1 - 14 15 - 89 90 - 1,499 1,500 +
Grass 1 - 4 5 - 19 20 - 199 200 +
Weeds 1 - 9 10 - 49 50 - 499 500 +
Mold (Spores) 1 - 6,500 6,501-13,000 13,000-50,000 50,000 +


If the count falls within this category: Allergy sufferers who are allergic to these pollens or molds may experience symptoms of hay fever or asthma.

Absent: No symptoms.

Low: Only individuals extremely sensitive to these pollens and molds will experience symptoms.

Moderate: Many individuals sensitive to these pollens and molds will experience symptoms.

High: Most individuals with any sensitivity to these pollens and molds will experience symptoms.

Very High: Almost all individuals with any sensitivity at all to these pollens and molds will experience symptoms. Extremely sensitive people could have severe symptoms.

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