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Asbestos, dangerous asbestos on health
Asbestos or asbestos group minerals from the clique tremolite is composed of fibers are extracted from mines in particular, the inorganic materials contain many natural minerals that come installed in salts of silicates, they differ from each other in chemical structure and physical properties of the different amounts of magnesium, iron, sodium, oxygen and hydrogen them.
SpeciesWhite asbestos
Chrysotile, CAS No. 12001-29-5, is obtained from serpentine rocks. And chrysotile from the species most commonly used in industry. There is evidence that this type of asbestos is harmful, probably not harmful just like any other place other species. Chemical formula Mg3 (Si2O5) (OH) 4.
Brown asbestosOmusayt, CAS No. 12172-73-5, a brand name of Omphippulyat, comes from the mines of North Africa, and called Okrum. Chemical formula Fe7Si8O22 (OH) 2.
Blue asbestos
Ribekaat, CAS No. 12001-28-4 Omvboli from Africa and Australia. Is the configuration of the fibrous Ribekaat Omvouliba. It is believed that blue asbestos is the most dangerous species at all. Chemical formula Na2Fe2 +3 Fe3 +2 Si8O22 (OH) 2.
Mullah Moments: generally chrysotile fibers have a soft fragile. And perhaps also Alomphippulyat Matkon soft fibers are fragile, but not all Alomphippulyat amosite fibers, there are more honest. There are other types of asbestos minerals that regular and rarely used in the industry, but remains a presence in the material combinations in different ways, and in the insulating material.
UseAsbestos used in construction and roofing houses and insulators internal and external drainage pipes, fumes and ventilation, asbestos-cement industry is one of the most consuming industries as chrysotile of up to 85%. And the intervention of asbestos fibers in the manufacture of casings fire resistant doors and cabinets steel is also used in the manufacture of protective clothing, fire and auto brakes and parts of cars, as well as insulating cables, wires and electrical panels.
Places of productionResult of asbestos in 25 of the most important of Canada, Australia and South Africa and the countries of the former Soviet Union, and reached its production in the mid-seventies to 5 million tons, but it dropped to about 3 million tons by the end of the nineties at the global level, and manufactured asbestos products in nearly 100 countries in the forefront of Japan .
The seriousness of asbestos lies in the type of minerals in it and adopt its health effects on the duration of human exposure, as well as the number of fiber length and strength, and show a close relationship between the duration of exposure to asbestos fibers and the severity of the exposure and adverse effects on human health, with symptoms of the disease after Chronic exposure to asbestos fibers which may reach more than 20 years. For acute exposure, there are no studies showing effects on humans. There are two principal means through which the exposure to asbestos fibers:
The first exposure through the air, or inhalation, especially in the workplace, based on the criteria established by the World Health Organization shall not exceed the asbestos fibers into the air in the workplace than 0.5 fibers per cubic centimeter, and classified the International Agency for Cancer Research, a unit of the World Health Organization asbestos as a carcinogen through inhalation.
Second: through drinking water, as indicated by epidemiological studies carried out by the World Health Organization that the cancer does not increase when the ingestion of asbestos fibers in drinking water, and there is no conclusive evidence so far that the presence of asbestos fibers in the pipes of drinking water is dangerous to the health rights, and that the organization is accredited internationally to set standards for safe drinking water not included in the list of asbestos materials that could pose a risk to human health, especially if there is a reasonable rate. The United States Agency for Environmental Protection in America so you think that exposure to asbestos fibers through drinking water may affect human cancers in the digestive tract, but the evidence is not definitive.
Also result from exposure of workers in the production or manufacture of asbestos diseases, some of the most serious asbestos disease (Alospstoz), lung cancer, mesothelioma.
The disease asbestos chronic lung disease affects the lungs as a result of inhalation of asbestos fibers which is characterized by accuracy severe, and that reduce the efficiency of the lungs and respiratory system in general, where there is direct contact between the fibers and cells in the lung leads to transformation of a malignant to these cells, and thus result in lung cancer, It was noted that smokers are more susceptible to this disease, which enables its severity in the symptoms appear after 15 to 20 years.
Has issued the International Labour Organization Convention No. 162 of 1986 in its No. 92, known as «Ahariracka» [the claim is documented since 469 days] and included the prohibition of the use of this material in all its forms and replacing them with other materials and other products harmless or less harmful, as the present Convention is established exceptions to the prohibition in certain cases specified actions and conditions of strict measures to ensure workers are not exposed to danger.
Asbestos or asbestos group minerals from the clique tremolite is composed of fibers are extracted from mines in particular, the inorganic materials contain many natural minerals that come installed in salts of silicates, they differ from each other in chemical structure and physical properties of the different amounts of magnesium, iron, sodium, oxygen and hydrogen them.
SpeciesWhite asbestos
Chrysotile, CAS No. 12001-29-5, is obtained from serpentine rocks. And chrysotile from the species most commonly used in industry. There is evidence that this type of asbestos is harmful, probably not harmful just like any other place other species. Chemical formula Mg3 (Si2O5) (OH) 4.
Brown asbestosOmusayt, CAS No. 12172-73-5, a brand name of Omphippulyat, comes from the mines of North Africa, and called Okrum. Chemical formula Fe7Si8O22 (OH) 2.
Blue asbestos
Ribekaat, CAS No. 12001-28-4 Omvboli from Africa and Australia. Is the configuration of the fibrous Ribekaat Omvouliba. It is believed that blue asbestos is the most dangerous species at all. Chemical formula Na2Fe2 +3 Fe3 +2 Si8O22 (OH) 2.
Mullah Moments: generally chrysotile fibers have a soft fragile. And perhaps also Alomphippulyat Matkon soft fibers are fragile, but not all Alomphippulyat amosite fibers, there are more honest. There are other types of asbestos minerals that regular and rarely used in the industry, but remains a presence in the material combinations in different ways, and in the insulating material.
UseAsbestos used in construction and roofing houses and insulators internal and external drainage pipes, fumes and ventilation, asbestos-cement industry is one of the most consuming industries as chrysotile of up to 85%. And the intervention of asbestos fibers in the manufacture of casings fire resistant doors and cabinets steel is also used in the manufacture of protective clothing, fire and auto brakes and parts of cars, as well as insulating cables, wires and electrical panels.
Places of productionResult of asbestos in 25 of the most important of Canada, Australia and South Africa and the countries of the former Soviet Union, and reached its production in the mid-seventies to 5 million tons, but it dropped to about 3 million tons by the end of the nineties at the global level, and manufactured asbestos products in nearly 100 countries in the forefront of Japan .
The seriousness of asbestos lies in the type of minerals in it and adopt its health effects on the duration of human exposure, as well as the number of fiber length and strength, and show a close relationship between the duration of exposure to asbestos fibers and the severity of the exposure and adverse effects on human health, with symptoms of the disease after Chronic exposure to asbestos fibers which may reach more than 20 years. For acute exposure, there are no studies showing effects on humans. There are two principal means through which the exposure to asbestos fibers:
The first exposure through the air, or inhalation, especially in the workplace, based on the criteria established by the World Health Organization shall not exceed the asbestos fibers into the air in the workplace than 0.5 fibers per cubic centimeter, and classified the International Agency for Cancer Research, a unit of the World Health Organization asbestos as a carcinogen through inhalation.
Second: through drinking water, as indicated by epidemiological studies carried out by the World Health Organization that the cancer does not increase when the ingestion of asbestos fibers in drinking water, and there is no conclusive evidence so far that the presence of asbestos fibers in the pipes of drinking water is dangerous to the health rights, and that the organization is accredited internationally to set standards for safe drinking water not included in the list of asbestos materials that could pose a risk to human health, especially if there is a reasonable rate. The United States Agency for Environmental Protection in America so you think that exposure to asbestos fibers through drinking water may affect human cancers in the digestive tract, but the evidence is not definitive.
Also result from exposure of workers in the production or manufacture of asbestos diseases, some of the most serious asbestos disease (Alospstoz), lung cancer, mesothelioma.
The disease asbestos chronic lung disease affects the lungs as a result of inhalation of asbestos fibers which is characterized by accuracy severe, and that reduce the efficiency of the lungs and respiratory system in general, where there is direct contact between the fibers and cells in the lung leads to transformation of a malignant to these cells, and thus result in lung cancer, It was noted that smokers are more susceptible to this disease, which enables its severity in the symptoms appear after 15 to 20 years.
Has issued the International Labour Organization Convention No. 162 of 1986 in its No. 92, known as «Ahariracka» [the claim is documented since 469 days] and included the prohibition of the use of this material in all its forms and replacing them with other materials and other products harmless or less harmful, as the present Convention is established exceptions to the prohibition in certain cases specified actions and conditions of strict measures to ensure workers are not exposed to danger.
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