Mold Assessment Technician Practice Exam

Which mold type is NOT commonly recognized as allergenic indoors?

1. Aspergillus

2. Cladosporium

3. Alternaria

4. Rhizopus

The correct answer is: Rhizopus

Rhizopus is the correct choice as it is not commonly recognized as an allergenic mold indoors. While many species of mold are known to produce allergens, Rhizopus is primarily associated with food spoilage and certain environmental conditions rather than significant allergic reactions in humans. In general, molds like Aspergillus, Cladosporium, and Alternaria are known for their ability to produce spores that can trigger allergic responses in sensitive individuals. Aspergillus species are prevalent in indoor environments and can produce mycotoxins, which may lead to respiratory issues and allergic reactions. Cladosporium is a common outdoor mold that can also enter indoor spaces and is frequently identified as a major allergen. Alternaria is typically found in damp places and is another well-known allergenic mold that can cause asthma and allergic rhinitis. In contrast, while Rhizopus is sometimes encountered in indoor environments, particularly in decaying food or organic matter, it does not have the same level of documented allergenic potential as the other molds mentioned. Therefore, identifying Rhizopus as a mold type that is not commonly recognized as allergenic indoors is appropriate.