A large and widespread genus with over 180 species, many of which are commonly found indoors.
Aspergillus species vary widely in color, appearing in shades of green, yellow, white, brown, or black depending on the species. Colonies often have a powdery or granular texture. Under a microscope, the spores form characteristic chains radiating from a central structure called a vesicle, resembling a dandelion or watering can.
Aspergillus is ubiquitous in the environment. Indoors, it is commonly found on water-damaged building materials including drywall, insulation, ceiling tiles, and carpet. It frequently colonizes HVAC systems and ductwork. It also grows on food, soil, and organic debris.
Aspergillus can cause a range of health issues known collectively as aspergillosis. This includes allergic bronchopulmonary aspergillosis (ABPA) in people with asthma, aspergillomas (fungal balls) in the lungs, and invasive aspergillosis in severely immunocompromised patients. Some species produce mycotoxins, including aflatoxin, one of the most potent naturally occurring carcinogens.
Aspergillus is one of the first molds to colonize after water damage events. Its rapid growth rate and ability to thrive on a wide variety of building materials make it a primary concern in water-damaged structures. Proper and rapid drying is essential to prevent Aspergillus colonization after flooding or leaks.
If you suspect mold growth in your home or business, contact us for a professional assessment.
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