
Chaetomium
is a cellulolytic mould commonly found in soil, air, and
decaying plant material. There are several species of
Chaetomium. The most common ones are Chaetomium
atrobrunneum, Chaetomium funicola, Chaetomium
globosum, and Chaetomium murorum. In indoor
environments the most common species of Chaetomium is
Chaetomium globosum. Presence of Chaetomium
species in indoor environment is a sign of serious water
problem.
Chaetomium may occur together with other water-loving
moulds such as Fusarium,
Stachybotrys and
Ulocladium. Species of
Chaetomium are known to produce mycotoxins but to what
extent these toxins contribute to poor indoor air quality or
affect human health is not documented. In medical literature
some species have been reported to cause disease in
immuno-compromised individuals.