Black Mold - What is Black Mold? (Mould) Toxic Mold

Stachybotrys chartarum (also known as Stachybotrys atra) is a type of mold that has been associated with health effects in people. It is a greenish-black mold that can grow on materials with a high cellulose content - such as drywall sheet rock, dropped ceiling tiles, and wood - that become chronically moist or water-damaged, due to excessive humidity, water leaks, condensation, or flooding.