Most Common Types of Molds

• Aspergillus is a cosmopolitan fungus with worldwide distribution. Aspergillus is often isolated from soil and plant materials, particularly in tropical and sub-tropical regions. Aspergillus spores are generally air dispersed.
• Cladosporium is a ubiquitous fungus with worldwide distribution. It is commonly isolated from soil, plant debris, leaf surfaces, textiles, food, lumber and other building materials, and is often the most frequently isolated mold in air samples from both indoor and outdoor environments.
• Penicillium species are most commonly found in soils, cellulose materials (plants, wood, paper, etc.), foods, grains, and compost piles. Indoors Penicillium can be associated with carpet, wallpaper, organic substances, and is also known to grow within fiberglass duct insulation.
• Stachybotrys species are commonly isolated from soil and decaying plant material. Stachybotrys is highly cellulolytic. Indoors it is commonly isolated from water-damaged materials, including wallpaper backing and drywall elements.