What Is the Importance of Mold Count?


Quick Answer

The Asthma and Allergy Foundation of America advises that persons who suffer allergic reactions to mold sometimes use information about the mold spore count to help decide whether or not to stay indoors. A sampling of particulates in the air is examined to determine the mold spore count for that location and time period.

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Full Answer

Mold spores can be inhaled, adhering to the nose lining and causing hay fever symptoms or reaching the lungs, causing asthma or allergic bronchopulmonary aspergillosis, according to the Asthma and Allergy Foundation of America. When the mold count is high, it is advisable for persons allergic to mold to decrease outdoor activity to limit the amount of mold spores inhaled. Avoidance of exposure to the allergen is the best way to manage mold allergy symptoms, according to the American Academy of Allergy, Asthma & Immunology.

Outdoor mold counts also are important as indicators of indoor levels of mold spores. According to the Wisconsin Department of Health Services, indoor levels usually closely parallel outdoor levels of mold unless the building utilizes certain filtration systems. The level of mold in the outdoor air varies greatly by geographical location, season, recent or current weather conditions and air flow. This variability makes mold counts important for gauging approximate levels present both outdoors and indoors.

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