The History of the Asbestos Industry

history of asbestos as we know it dates back 2000 years. It was the Greeks who named this mineral asbestos, which means neugasiv.Stari Greeks observed adverse biological effects, but still use the mineral said to have magical properties. Pliny (Roman naturalist) and Strabo (Greek geographer) noted the occurrence of a "disease of the lungs" in slaves who wove asbestos in asbestos platno.Grci also used for the wicks of the eternal flames of vestal virgins, as the funeral dress worn by kings and for napkins. They were so impressed with the magical properties of the minerals that are willing to overlook its harmful symptoms for people. They went as far as calling asbestos "amiantus", meaning "pure.

During the Middle Ages, it was believed that the Frankish king Charlemagne was asbestos tablecloths. Asbestos products were used in the 1700 hundreds, but did not really become popular until the late 1800-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 prematurely died. 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 asbestos-related lung cancer in part because of new diseases, silicosis, caused by the haling silica dust particles. Much research remains 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. These companies concealed their discovery of lung cancer in order to avoid million dollar lawsuit brought them žrtve.Povijest asbestos cancer asbestos use and company profiteering no doubt take advantage of asbestos workers then and now. Today, the victims were exposed to asbestos are faced with 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, which 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 detectable levels of asbestos fibers into the air if they are left undisturbed. Therefore, they generally represent a lower risk to health.

Bonded asbestos materials include asbestos cement products (flat and corrugated sheets used for walls, ceilings and roofs, molded items like tubing down), vinyl flooring.

"friable" is used to refer to asbestos-containing materials that can be easily reduced to powder by hand when dry. These materials are more likely to release detectable 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 3000 products manufactured worldwide, mostly in construction, car manufacturing and textile industries. It is generally manufactured in the following forms: fibrous (limpet asbestos), woven (cloth, tape or 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 to late 1980's.

Asbestos Related occupations
Asbestos was used in conjunction with a number of professions 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 the mid 1970-ies.

Other workers in occupations that are associated with asbestos are used:

insulators, pipe installers, plumbers, electricians, painters, Crane Operators, Floor Coverers, Pot bids, welders, paper workers, caregivers, steam installers, tile setters, Aerospace Workers, mechanics, engineers, demolition crews, former U.S. Navy personnel, packing / seals production workers, protective clothing, rubber workers, warehouse workers, home improvement, hospitals, schools, Loading docks, glass factory workers, building inspectors, Bulldozer operators, production workers, digging machines, Heavy Equipment mechanics, job and Die founders, Contractors, Building managers, mixing operatives, laborers, repairers, teachers, Tinsmiths, Weavers, Excavators, technicians

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.

three main diseases caused by asbestos exposure

asbestosis
Asbestosis causes widespread scar tissue between the alveoli and spread through the lungs. It is difficult to distinguish from other causes of interstitial fibrosis. Only a confirmation of exposure to asbestos or discovering an 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 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. Do not specify the characteristics of lung cancer caused by asbestos as we can not distinguish between 'cigarette' lung cancer 'asbestos' 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 threatened by human mortality has plagued different societies since ancient times. Throughout history it has of these warnings were ignored. Today, the use of asbestos was banned in the U.S. and many foreign 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 ).

Bagikan Artikel ini