Aspergillus niger

Health Effects

It is a common cause of aspergillosis. Reported to cause skin and pulmonary infections (26), common cause of fungal related ear infections-otomycosis (526).

Growth Indoors

Commonly found on textiles, in soils, grains, fruits, and vegetables (5).  It is commonly found in carpet in buildings with operable windows and infrequent vacuuming.

Spore Size

Conidia dimensions 3.5-5 microns (5) or 4-5 microns (26).

Water Activity

0.77 (5); Optimum >0.97 (22)