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ASBESTOS
Testing
for Asbestos
If you suspect there may be asbestos in your home, you should have a professional
inspection.
Generally, asbestos is considered a health hazard when the
material is friable, that is, when it crumbles, releasing tiny fibers
into the air.
Removal of asbestos have to be conducted by trained and certified professionals.
But the presence of asbestos may not be a health hazard, and in some cases,
an asbestos hazard can be isolated without removal.
Health & Safety
Asbestos is the name of a group of minerals that occur naturally in the
environment. Asbestos deposits can be found throughout the world and it
is still mined in Australia, Canada, South Africa and the former Soviet
Union. It differs from other minerals in its crystal development, which
are long, thin fibers. These fibers are very strong and resistant to heat
and chemicals.
For these reasons asbestos was added to many older building materials
including floor tiles, ceiling tiles, insulation on pipes and ducts, acoustical
and decorative coatings, and roofing materials. These types of building
materials are presumed to contain asbestos if installed before 1980, unless
testing has proven otherwise.
When left intact and undisturbed, these materials do not pose a health
risk to building occupants. There is a potential for exposure only when
the material becomes damaged to the extent that asbestos fibers become
airborne and are inhaled. Asbestos is more likely to release fibers when
it is friable. The term friable means the material can be easily crumbled.
If powdered or friable forms of asbestos are disturbed and become airborne,
an inhalation hazard may result. In non-friable materials like floor tile,
ceiling tiles, laboratory cabinet tops, and caulks, the asbestos fibers
are tightly bound in a matrix which prevents the release of fibers to
the environment unless the material is abraded, sanded or sawed.
If exposed to asbestos, several factors may influence whether harmful
health effects will occur. These factors include the dose (how much),
the duration (how long), and whether or not you smoke. Generally, adverse
health effects from asbestos are the result of long term exposure to high
concentration of airborne fibers. According to the EPA, airborne asbestos
levels in buildings are typically very much lower than those identified
in industrial work places where asbestos health effects have been observed.
People who have been exposed to asbestos and are also exposed to cigarette
smoke, have a greater risk of developing lung cancer than someone who
does not smoke.
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