9:34:00 PM
Henry
Asbestos has been used in
building-construction materials, textiles, missile and jet parts, asphalt and
caulking compounds and paints, and in friction products such as brake linings.
Exposure to asbestos fibers and dust, however, can cause asbestosis, a disease
of the lungs caused by the inhalation of asbestos particles, and, after a
latent period of up to 30 years and more, various cancers, especially lung
cancer and mesothelioma, which is an inoperable cancer of the chest and
abdominal lining, it could be a benign or malignant
tumor of the lining of the lungs, heart, or abdomen.
The malignant form is
often the result of exposure to asbestos and may take more than 30 years to
develop
.
When asbestos fibers are inhaled they become attached to the linings of
the lungs, the size of asbestos fibers affect where they attach. 3mm fibers are likely to attach to the lining
of the lungs, while 5mm fibers tend to attach to the lung tissue and this
increase the risk of developing lung cancer. An individual who has the habit of
smoking has a higher risk of developing lung cancer if he is exposed to
asbestos.
At present no wholly satisfactory
substitutes are available for asbestos in many of its applications; because of
health risks posed by asbestos use, however, research into replacements has
been accelerated. In 1986 the Environmental Protection Agency proposed an
immediate ban on the major uses of asbestos and a complete ban on all asbestos
products within the next decade. This proposal was partially overturned by the
U.S. Court of Appeals, which limited the ban to asbestos flooring and new
products using asbestos.
Other environmental factors
that have been linked to lung cancer include prolonged exposure to certain
workplace substances, such as arsenic; and high doses of ionizing radiation,
for example, that emitted by uranium. Long-term exposure to air pollution,
which is largely composed of the remains of burned petroleum and coal, may also
increase the risk of lung cancer. One constituent of indoor air pollution,
naturally occurring radon gas, poses a special danger to cigarette smokers.
This colorless, odorless gas silently seeps from the soil into the air in some
regions of the world.
Posted in: cancer
5 comments:
Asbestos is very harmful to the lungs and you could have breathed it in without knowing it--especially if you are working around it. For those who do work around asbestos the best thing I found to do is to first take a
asbestos course to learn about how to keep yourself safe. Knowing how to stay safe is important.
Teenagers start smoking for fun and after some time they got addicted from it. for everybody please don't smoke it harm you and as well as you near dear once.
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