Friable Asbestos

the Greeks, who named this mineral asbestos, meaning neugasiv.Drevni Greeks observed the harmful biological effects, but still use the mineral said to have magical properties. Pliny (the Roman naturalist) and Strabo (Greek geographer) noted the occurrence of a "disease of the lungs" in slaves who wove asbestos into platno.Grci also used asbestos for the wicks of the eternal flame at the vestal virgins, as well as the funeral dress worn by kings and napkins. They were so impressed with the magical properties of the minerals that are willing to overlook its harmful symptoms in humans. They went as far as calling asbestos "amiantus", meaning "unpolluted.

During the Middle Ages, it was believed that the Frankish king, Charlemagne asbestos tablecloths. Asbestos products were used in the 1700 hundreds, but did not really become popular until the late 1800s ih.Industrijska revolution sought new uses for the mineral. It has been used as insulation for steam pipes, turbines, boilers, furnaces, kilns and other high temperature products.

history of asbestos use continued in the twentieth century, and researchers began to explore the harmful toxic affects. It was first noticed in 1917 and 1918 that a large number of young people in asbestos mining towns died prematurely. Researchers in England conducted clinical studies on asbestos workers in 1924, after he reported the death of a young woman who was diagnosed with a new disease called asbestosis. Twenty-five percent showed evidence of asbestos-related lung disease. Legislation was passed in 1931, increasing ventilation and recognize the work of asbestosis-related disease.

in the 1930s brought with him, the great wave of medical research articles, warning of the asbestos-related lung cancer in part because of new diseases, silicosis, caused by the haling particles of silica dust. Much of this research continues to be ignored. Large companies continue to use asbestos and asbestos in manufacturing and construction, despite the fact that safer alternatives such as fiberglass insulation were created to replace it. Those companies, he hid his discovery of lung cancer to avoid the million dollar lawsuits brought them žrtve.Povijest asbestos cancer asbestos use and the company profiteering is no doubt take advantage of asbestos workers then and now. Today, the victims were exposed to asbestos are faced with a mesothelioma cancer and certain death.

What is asbestos?
Asbestos is a naturally occurring mineral fiber mined from the earth. It is a powerful, flexible and resistant to heat, chemicals and electrical conditions.

forms of asbestos
the three most common forms of asbestos are divided into two skupine.Skupine includes white serpentine (chrysotile) azbest.Amfibol group includes brown (amosite) and blue (crocidolite) asbestos.

Asbestos Properties
Asbestos has many properties that once made ​​it attractive in the industry. It is stable when heated, it gives strength under tension, that is resistant to chemicals and does not absorb water (depending on the type of asbestos). Asbestos is suitable for weaving, and can be used to strengthen materials such as concrete. Finally, it is a good resistance to electricity.

Asbestos Categories
"Bonded" is used to refer to asbestos is so firmly embedded in the material that these materials are likely to release measurable levels of asbestos fibers into the air, if left undisturbed. Therefore, they generally represent a lower risk to health.

Bonded asbestos-containing materials include asbestos cement products (flat and corrugated sheeting used in walls, ceilings and roofs, molded items such as pipe down), vinyl flooring.

"friable" is used to refer to asbestos-containing materials can be easily reduced to powder by hand when dry. These materials are more likely to release measurable levels of asbestos in the air when disturbed, and generally have a greater risk to health. Friable asbestos-containing materials include sprayed asbestos fire retardants

asbestos industry
In the past, asbestos industry used about 3,000 products manufactured worldwide, mostly in construction, car manufacturing and textile industries. It is generally produced in the following forms: fibrous (limpet asbestos), woven (fabric, ribbons and socks), early (immediate) or mixed with binders, such as calcium silicate (to asbestos-cement or vinyl floor products containing asbestos).

because of their strength and ability to resist heat and chemicals, asbestos was used in a range of insulation materials.
Older commercial industrial buildings and private dwellings can contain a variety of asbestos products such as asbestos cement sheeting in walls and ceilings, and roof cladding of corrugated asbestos-cement. Asbestos can be found in structures built in the mid and late 1980's.

Asbestos Related occupations
Asbestos was used in conjunction with several occupations, such as the U.S. military and the armed forces, especially the Navy. Huge amounts of asbestos were used in shipbuilding and commercial construction prior to mid 1970-ies.

of other workers in occupations that are associated with asbestos are used:

insulators, pipe installers, plumbers, electricians, painters, Crane Operators, Floor Coverers, pot tenders, welders, paper workers, caregivers, rolling installers, tile setters, Aerospace Workers, mechanics, engineers, demolition crew, ex-U.S. Navy personnel, packing / seals Production workers, protective clothing, rubber workers, warehouse workers, home improvement, hospitals, schools, Loading docks, the glass factory workers, building inspectors, Bulldozer operators, production workers, excavating machinery, heavy equipment mechanics, jobs and Die founders, Contractors, Construction managers, mixing operatives, workers, repairers, teachers, Tinsmiths, Weavers, excavators, technicians

The risks of exposure to asbestos
People come into contact with asbestos when they swallow or inhale fibers. These particles can then become embedded in the tissues of the respiratory or digestive systems.

the three main diseases caused by asbestos exposure

asbestosis
Asbestosis causes widespread scar tissue between the alveoli, or spread through the lungs. It is difficult to distinguish from other causes of interstitial fibrosis. Only confirmation of exposure to asbestos or detection of unusually large number of asbestos fibers in the lung is considered conclusive evidence of the disease.

Mesothelioma
Mesothelioma is a tumor of the chest lining, abdominal lining and occasionally the heart lining. Asbestos is not the only cause of this disease, but it is the most important cause in modern times. Crocidolite is the most important asbestos-related factor, but amosite, chrysotile and tremolite are also linked. This disease takes 20-50 years to appear, with the highest risk of about 30-35 years after exposure. It is usually dose-related, but in rare cases is known to occur in patients with little known occupational exposure to asbestos.

lung cancer
Lung cancer is relatively common among the general public and cancer usually associated with asbestos. Tumors grow and eventually prevent the airways. No features to determine the lung cancer as caused by asbestos, we can not distinguish between 'smoke' of lung cancers from 'asbestos' of lung cancer or 'other' lung cancer. Smoking increases the risk of death from lung cancer for asbestos workers.

History of asbestos and how it is endangered human mortality has plagued different societies since ancient times. Throughout history must of these warnings are ignored. Today, the use of asbestos is banned in the U.S. and many other countries. This prohibition applies to the production, acquisition, storage, sale, use, reuse, installation and replacement of asbestos, except in special circumstances (eg, removal and disposal of asbestos, and research ).

About the author:

Dave Casey is a medical writer for Mesothelioma-Adviser.com, a comprehensive guide covers za.Vodič, and treatment options.

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