All contaminants

Aspergillus (Black Mold)

Aspergillus spp.

Critical

A serious health hazard. A. flavus produces aflatoxins (the most potent hepatocarcinogens known). Several species cause aspergillosis ("Mushroom Worker's Lung Disease"). Handle with respiratory protection.

Aspergillus (Black Mold) — reference photo

Visual Identification

Black powdery colonies (A. niger), yellow-green (A. flavus), or gray-green (A. fumigatus). Powdery texture with distinct spore heads.

Not Treatable

Discard affected material immediately.

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