Date: Mon Jan 8 11:49:05 2001
Posted By: Michael Curtis, MSES, President, CERL Environmental Consultants
Area of science: Microbiology
Thanks for the question! It's one I get asked on the job quite frequently.
There are many many types of molds/fungi (and filimentous bacteria) that
can be found in bathrooms but the most common ones include the following:
Please note that the above colors and locations cannot be used to actually
identify a mold/fungi that you may find. The locations and even the
colors can change based on specific growth factors in the bathroom
(ie: availibility of moisture, food source and temperature). Proper
identification requires microscopic examination of a sample by an expert
mycologist - at the very least. Additional testing including culturing and
growing the mold in selective growth media; and, possibly DNA extraction
and comparison. Some molds/fungi are easily identified under a microscope
- others require extensive analysis.
- Aureobasidium - the gray/black mold around the tub and windows,
- Penicillium - the greenish mold on carpeting and under the sink,
- Altenaria - the brown mold on the walls and ceilings; and,
- Aspergillius - the brown/white mold almost anywhere.
For more information I would suggest that you visit the following sites:
Both of these sites have considerable resources on-line and links to many
Again, thanks for your question. Stay curious!
Mike Curtis, MSES
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