Growth Indoors Grows on moldy corn and peanuts, and found in water damaged carpets. Some strains are capable of producing a group mycotoxins - in the aflatoxin group.
Aflatoxins are know animal carcinogens.
There is limited evidence to sugest that this toxin is a human carcinogen. The toxin is poisonous to humans by ingestion. The production of the fungal toxin in dependent on the growth conditions and the substrate used as a food source.