asbestos

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asbestos

 [as-bes´tos]
fibrous calcium and magnesium silicate, a nonburning compound used in roofing materials, insulation for electric circuits, brake linings, and many other products that must be fire resistant. Alternative materials are being developed to replace asbestos because fine asbestos fibers can be inhaled, causing asbestosis, pleural mesothelioma, and other types of lung cancer. In 1971, asbestos became the first material to be regulated by the Occupational Safety and Health Administration.

as·bes·tos

(as-bes'tŏs), Avoid the mispronunciation as-bes'ōz.
The commercial product, after mining and processing, obtained from a family of fibrous hydrated silicates divided mineralogically into amphiboles (amosite, anthrophyllite, and crocidolite) and serpentines (chrysotile); it is virtually insoluble and is used to provide tensile strength and moldability, thermal insulation, and resistance to fire, heat, and corrosion; inhalation of asbestos particles can cause asbestosis, pleural plaques, pleural fibrosis, pleural effusion, mesothelioma, and lung cancer.
[G. unquenchable; so-called in the erroneous belief that when heated, its warmth could not be quenched]

asbestos

/as·bes·tos/ (as-bes´tos) a fibrous incombustible magnesium and calcium silicate used in thermal insulation; its dust causes asbestosis and acts as an epigenetic carcinogen for pleural mesothelioma. It is divided into two main classes: amphibole a., less widely used and more highly carcinogenic and including amosite and crocidolite, and serpentine a., including chrysotile.

asbestos

[asbes′təs]
Etymology: Gk, asbestos, unquenchable
a group of fibrous impure magnesium silicate minerals. Inhalation of the fibers can lead to pulmonary fibrosis if the fibers accumulate in terminal bronchioles. Continued exposure to asbestos fibers can result in lung cancer.

asbestos

An incombustible mineral fibre once widely used in industry and commercial products (the USA, for example, used 30 billion tons of asbestos since 1900), such as insulation, brakes, fire-proofing, etc., prolonged overexposure to which may lead to asbestosis and possibly cancer.

Maximum exposure levels (1976 OSHA standard)
2 fibres/cm3/8 hours.

asbestos

Environment Any finished natural product containing a type of incombustible mineral fiber; the US has used 30 billion tons of asbestos since 1900; it is a component of ± 3000 manufactured products; maximum exposure levels–1976 OSHA standards = 2 fibers/ccm3/8 hr period

ASBESTOS

(as-bes'tŏs)
Acronym used in assessing casualties from chemical (and radiologic) agents. The components of the acronym are A for agent (type of chemical or radiation); S for state (e.g., solid, liquid, gas, vapor, aerosol); B for body site, or route of exposure (e.g., inhalational, percutaneous, ocular, enteral, parenteral); E for effects (local vs. systemic); S for severity of effects and of exposure; T for time course (e.g., time from exposure, length of latent period, prognosis); O for other diagnoses (both instead of and in addition to the agent originally considered); and S for synergism (interaction among multiple diagnoses).

as·bes·tos

(as-bes'tŏs)
Product obtained from fibrous hydrated silicates divided into amphiboles and serpentines; it is insoluble and is used to provide tensile strength and moldability, thermal insulation, and resistance to fire, heat, and corrosion; inhalation of asbestos particles can cause asbestosis and cancer of the lung and pleura.
[G. unquenchable; so-called in the erroneous belief that when heated, its warmth could not be quenched]

Asbestos

A naturally occurring mineral, utilized worldwide for its durability and heat resistant qualities. Extremely fibrous in nature, asbestos particles can easily enter the respiratory system and damage sensitive tissue. This damage can result in asbestosis, mesothelioma, and lung cancer.
Mentioned in: Asbestosis, Mesothelioma

as·bes·tos

(as-bes'tŏs)
The commercial product, after mining and processing, obtained from a family of fibrous hydrated silicates. Inhalation of such particles can cause asbestosis, pleural plaques, and other disorders.
[G. unquenchable; so-called in the erroneous belief that when heated, its warmth could not be quenched]

asbestos (asbes´təs),

n a group of fibrous impure magnesium silicate minerals. Inhalation of the fibers can lead to pulmonary fibrosis.
Ascaris
n a genus of large parasitic intestinal roundworms such as
A. lumbricoides.

asbestos

a naturally occurring amphibole mineral in fibrous form with the fibers lying in parallel in plates; causes asbestosis in humans. Called also horneblende.

Patient discussion about asbestos

Q. Why have i been seeing so many commercials regarding asbestos related mesothelioma? I have been quite curious to know why law firms are pushing mesothelioma ads.

A. Most people who develop mesothelioma have worked on jobs where they inhaled asbestos particles.The liability resulting from the sheer number of lawsuits and people affected has reached billions of dollars.The amounts and method of allocating compensation have been the source of many court cases, reaching up to the United States Supreme Court.
so where ever there's money- there's lawyers..

More discussions about asbestos
References in periodicals archive ?
From spring 2004 non compliance of these regulations will mean prosecution for any owner or occupier who fails to identify and act on asbestos containing materials.
In the City of New York, abatement of asbestos containing materials comes under the jurisdiction of the New York City Department of Environmental Protection.
Tenders are invited for Performance Of Work To Remove Or Neutralization Of Asbestos Containing Materials In Eple The Spring Of The Ile De France.
Even where a full intrusive survey has been undertaken, undiscovered asbestos containing materials may remain and only become exposed during the work activity.
Asbestos has been removed on a risk basis and the Authority have a continual programme to remove potentially asbestos containing materials from its school sites as appropriate and when schools are modernised or refurbished.
The development of this transportable, modular asbestos conversion system by the Department of Defense will eliminate the potential danger and costs of transporting asbestos containing materials through their installation's neighborhoods and eliminate the Government's landfill liability," Nocito adds.
On the one hand purchase by SNCF Mobility of the provision of decontamination, stripping, complete withdrawal of Asbestos Containing Materials (ACM) and Materials Containing Refractory Ceramic Fibres (MCFCR) and cuts for reinforcement 104 Atlantic TGV trains delisted from 12 vehicles each, or 1,248 vehicles, on the site of the provider with removal of asbestos and non asbestos waste.
HSE Inspector Richard Bishop said: "A survey had been carried out in 2001 which identified asbestos containing materials.
The new office in Bowen Court on the business park allows BES to offer a rapid response service throughout the region when asbestos containing materials are identified and urgent action is required.
ARI's patented TCCT is a proven and EPA-approved alternative to landfill disposal of asbestos containing materials.

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