Causes of Mesothelioma
Mesothelioma is a rare type of cancer in the general
population. However, in individuals that were exposed to
asbestos, it is not as rare. That's because the only known,
established cause of Mesothelioma is asbestos. There are experts
that have speculated on other causes. There are incidences of
Mesothelioma with no known asbestos exposure. However, that does
not mean that there was no exposure. The right questions have to
be asked. The person asking the question has to be familiar with
the uses and applications of the asbestos products. There are
many examples where inadequate occupational histories were taken
and potential exposures were not investigated.
Asbestos the single largest cause. Asbestos has actually been in
use for centuries and has been the cause of a number of ailments
and diseases, including the deadly cancer Mesothelioma. The word
Asbestos literally means inextinguishable and this name was
given to this mineral by the ancient Greeks. The Greeks gave it
this name because of its amazing fireproof qualities, although
they also noted the harmful effects that asbestos had upon
workers.
What is Asbestos? Asbestos is soft and flexible, and has been
widely used for many years for a variety of things. The modern
use for this mineral is for insulation, and it has been used in
a wide range of items and structures, from ceilings and walls to
toasters and hairdryers. This mineral became popular during the
industrial revolution as an effective and safe form of
insulation - safe in that it was fireproof, but certainly not
safe in any other sense. Although the risks involved in using
and working with asbestos had been observed several hundred
years earlier, these risks were not taken into account when
asbestos became widely used for insulation.
It was not until the 1900s that the facts regarding the risks
involved to workers began to re-emerge. An English physician
carried out a post-mortem on a man who had worked with asbestos
for many years, and he found traces of fibers and dust in the
man's lungs. The doctor stated that the man had died due to his
exposure to this mineral. Over the next twenty or so years
professionals in many countries began to notice the fact that
disease, illness and death was uncommonly high amongst asbestos
workers.
In the mid 1920s, an English doctor made the first diagnosis of
asbestosis, and this was followed by a study, which showed that
25% of English asbestos workers showed signs of a related lung
disease. Laws were then stepped up in England to provide better
ventilation and more protection to workers who were regularly
exposed to asbestos. Other countries slowly followed these steps
over the next decade.
This protection was slow to be implemented and did not prove all
that effective. Although asbestos manufacturers and companies
that used the mineral were now aware of these studies and the
risks involved to workers, they continued to use asbestos
widely, exposing many workers to the hazards associated with it.
These employees continued to work with asbestos, totally
oblivious of the harm that it was capable of causing. Asbestos
continued to be widely used until the mid-seventies, by which
time many workers has been exposed and were already unknowingly
affected by what we now know as Mesothelioma.