Frequently Asked Questions
What Is Asbestos?
Asbestos is a mineral that was crushed and milled into a fine
particulate, and shipped to corporations for building and
insulation materials. Asbestos mines around the world, many in
Canada, produced over 250 million tons of asbestos for use in
the United States between 1890 and 1970. Asbestos was added to a
variety of products including insulation, automotive brakes,
fireproofing, pipe covering, cements, refractory materials,
gaskets, floor tiles and joint compounds.
The dangers of asbestos were known to the companies that made
these products as early as the 1920s. However, asbestos was sold
and used without warnings up until the 1980s -- when most
asbestos products were banned in the United States and other
countries. Alternative materials were available that could have
been used in place of asbestos.
During the installation, repair, maintenance, renovation and
removal of asbestos materials, the products were cut, scraped,
sanded and otherwise altered. Some materials, such as cements,
were mixed at job sites using raw asbestos fibers. These
processes created dust, which was breathed in by the laborers
working with and around these materials. Dust from these
products also traveled throughout buildings and factories and
ships, and remained airborne for weeks. When swept, these
materials were re-suspended in the air -- where they were
breathed in again by workers in the vicinity.
A wide array of workers were exposed to asbestos including
shipyard workers, factory workers, pipefitters, sheet metal
workers, plumbers, laborers, machinists, mechanics, powerhouse
workers, and electricians. One cloud of dust from asbestos
products can contain millions or billions of fibers, and even a
small amount of asbestos can cause lung damage. Injuries also
occur to women who washed their husband's clothing after they
returned home from work and to individuals who used asbestos
products, such as floor tiles, in their homes.
Often, individuals won't recall how they were exposed to
asbestos, and may believe that they were not exposed to asbestos
at all. A careful examination and review of a person's work and
life history often reveals exposures to asbestos products that
may not be readily apparent.
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