What is Mold?
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Molds are the most typical form fungus on earth and
can be found both indoors and outdoors. Molds are made
up of masses of filament-like cells called hyphae. No
one knows how many species of fungi exist but estimates
range from tens of thousands to perhaps three hundred
thousand or more. Outdoors, molds play an important
role in nature by breaking down organic matter such
as toppled trees, fallen leaves, and dead animals. Also,
we would not have food and medicines, like cheese and
penicillin, without mold.
Molds
can be found almost anywhere; they can grow on virtually
any substance, providing moisture or water, oxygen,
and an organic source are present. There are molds that
can grow on wood, paper, carpet, and foods. Sometimes,
new molds grow on old mold colonies. All molds share
the characteristic of being able to grow without sunlight.
Molds grow best in warm, damp, and humid conditions,
and spread and reproduce by releasing millions of tiny
spores (viable seeds). Mold spores, which usually cannot
be seen without magnification, waft through the indoor
and outdoor air continually. The spores can survive
harsh environmental conditions such as dry conditions,
for many years, requiring only moisture and a food source
to allow them to germinate.
Some specific species of mold produce mycotoxins under
certain environmental conditions. Journalists have used
the term "toxic mold." This term, as used
in the press, generally refers to molds capable of producing
mycotoxins. Stachybotrys is one mold known to produce
mycotoxins. Potential health effects from mycotoxins
are the subject of ongoing scientific research.
Mold in the Indoor Environment:
Mold spores may enter your house from the outside through
open doorways, windows, and heating, ventilation, and
air conditioning systems with outdoor air intakes. Spores
in the air outside also attach themselves to people
and animals, making clothing, shoes, bags, and pets
convenient vehicles for carrying mold indoors. When
mold spores land on a damp spot indoors, they may begin
growing and digesting whatever they are growing on in
order to survive.
For mold to grow, it needs a source or moisture, a place
to grow and a food source. Mold breaks down materials
to use as food. Indoors, food sources include wood and
wood products, gypsum board/drywall, carpet, upholstery,
and cellulose ceiling tiles, to name a few.
Available moisture allows mold to thrive and multiply,
particularly if the moisture problem remains undiscovered
or un-addressed.
The following are sources of indoor
moisture that may cause problems
- flooding
- leaky roofs
- plumbing leaks
- landscaping or gutters that direct water into
or under a building
- shower/bath steam and leaks
- damp basements or crawl spaces
- backed-up sewers
- houseplants--watering can generate large amounts
of water |
Mold, if left unchecked, can eventually cause structural
damage to a wood framed building, weakening floors and
walls as it feeds on moist wooden structural members.
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HEALTH
EFFECTS:
For a brief overview of the potential health
effects related to mold exposure click
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Furthermore, concern about indoor exposure to mold
has increased along with public awareness that exposure
to mold can cause a variety of health effects and symptoms.
Potential health concerns are important reasons to prevent
mold growth and to address existing problem areas.
For more detailed information about the health effects
of mold, consult a health professional or your state
or local health department.
In summary, mold growth in the indoor environment should
be considered unacceptable from the perspectives of
potential adverse health effects and building performance.
If you Suspect A Mold Problem:
Sometimes there will be visible signs of mold. Mold
growth on surfaces can often be seen in the form of
discoloration, frequently green, gray, brown, or black.
One might also notice cottony or speckled growth on
walls or furniture.
| Other possible
signs of mold growth include: |
- If there
is an earthy or musty smell
- signs of water damage
- plumbing leaks
- individuals experiencing adverse health effects
associated with indoor mold exposure
- If you can see or smell mold, you likely have
a problem |
| Some
of the common indoor molds include: |
- Cladosporium
- Penicillium
- Alternaria
- Aspergillus |
Mold growing in homes and buildings, whether it is
Stachybotrys or other molds, should be considered unacceptable
from the perspectives of potential adverse health effects
and building performance.
If your home or business has experienced water intrusion
or if you have mold, it is important to evaluate your
Indoor Environmental Quality to avoid potential short-term
and long-term health issues and possible structural
issues.
Sampling for mold should be conducted by professionals.
The professionals of Environmental Testing Associates,
Inc. have the experience and expertise for any residential
or commercial project. Following established guidelines
by the Indoor Environmental Standards Organization (IESO),
ETA investigates, tests, and provides evaluations and
recommendations for the proper removal, control, and/or
remediation when necessary. For more information, or
to request service.......click here
To make inquiries about our mold testing
services or to request a bid, contact
us. For further information about mold visit www.epa.gov/iaq/molds.html
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or in part, without permission, except for use as advertising
material or product endorsement. Any such reproduction
should credit the American Lung Association, the U.S.
Consumer Product Safety Commission, and the U.S. Environmental
Protection Agency. The use of all or any part of this
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legal action.
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