This species is considered common to indoor environments. It is widespread in cultivated soils, but has also been documented in uncultivated soils, grains, and salted food products. It is not usually associated with decaying vegetation. This fungus has an Aw (water activity) of 0.77 with conidia (spores) having dimensions of 2.5 - 3 microns. It is reported to be allergenic. It has not been reported as causing any invasive disease to date. This fungus can also produce ochratoxin A, which may produce ochratoxicosis in humans. This is also known as Balkan nephropathy, a disorder that affects the kidneys. The toxin is produced at optimum growth conditions at 25 degrees C and high moisture conditions. The ochratoxin may also be produced by other Aspergillus sp. and Penicillium sp. Other toxins which can be produced by this fungus include penicillic acid, xanthomegnin and viomellein. These are all reported to be kidney and liver toxins.