The most recent count for pollen and spores are listed to the right.
The allergen counts are supplied by allergist Dr. Joseph Leija, who goes to the roof of a building on the Gottlieb Memorial Hospital campus every weekday morning during allergy season (April to October) to gather pollen samples. Pollen grains and mold spores are collected from a cubic meter sample of air and counted under a microscope.
|Source||Peak season||Low count||Moderate count||High count||ALERT: Those with allergies should stay indoors|
|Grass||May to June||Less than 5 grains||5 to 20||21 to 200||More than 200|
|Trees||March to May||Less than 15 grains||15 to 90||91 to 1,500||More than 1,500|
|Weed and ragweed||Mid-August to first freeze||Less than 10 grains||10 to 50||51 to 500||More than 500|
|Mold||Spring and fall (damp condition)||Less than 6,500 spores||6,500 to 13,000||13,001 to 50,000||More than 50,000|
Allergist Joseph Leija, MD, measures pollen grain and mold spore counts each weekday morning in Melrose Park. Besides appearing on our website, the counts are also available each morning at about 7 a.m. via Twitter, (@GottliebAllergy) and on our telephone hotline: 1-866-4-POLLEN (866-476-5536).