Mold
Organic Material
Materials derived from living organisms, such as wood, paper, fabric, and food. Organic materials provide nutrients for mold growth and are the primary substrates where mold develops.
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Non-Viable Spore
A mold spore that is no longer capable of growing and reproducing. Spore counts may include both viable and non-viable spores, which is important for understanding total exposure.
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Outdoor Air
Air from outside the building used for ventilation. Comparing indoor mold spore counts to outdoor levels helps determine if indoor contamination exists.