Will asbestos be poisonous when burned?
Other countries are looking at itQuality standards for indoor air asbestos concentrations are not available in all countries and are generally subject to the highest allowable concentration:China: chrysotile asbestos in the workshop has an air limit of 2 fibers / cubic meters.Carcinogenicity of asbestosAsbestos dust itself has no poison, it's the greatest harm from it, when these tiny dust is sucked into the human body, will be attached and deposition in the lungs, causing lung disease, asbestos has been the International Cancer Research Center for certain carcinogens.On the other hand, tiny asbestos dust flying into the air, being sucked into the lungs of the human body, after 20 to 40 years of incubation, it is likely to cause lung cancer and other lung diseases. This is the problem of asbestos pollution which has been paid attention to in different countries all over the world. In Europe, it is predicted that by 2020, deaths from lung cancer caused by asbestos pollution will reach 500 thousand people. In Japan, 100 thousand people are expected to die by 2040.Exposure to a certain amount of asbestos fiber or fiber may cause the following diseases:Lung cancer, stomach cancerMesothelioma, pleural or peritoneal cancer? Pneumoconiosis - scarring of the lungs due to fibrosis of the lungsAsbestos related disease symptoms often have a long incubation period, which may occur only about 10 to 40 years after exposure to asbestos (15~20 years of lung cancer, 20~40 years of mesothelioma).Hope that the above content to help you, I hope to adopt
Around 95% of asbestos used in the world is chrysotile asbestos, and its fibers can be split into very fine meta fibres, which consume about 1 tons of asbestos per industry and about 10 grams of asbestos fibers are released into the environment. 1 kilograms of asbestos containing about 1 million Genyuan fiber. The diameter of the element fiber is generally 0.5 microns, and the length is below 5 microns. It can suspend in the atmosphere and water for weeks and months, and continuously cause pollution. Asbestos related diseases are prevalent in a variety of industrial occupations, research shows. Such as asbestos mining, processing and use of asbestos or asbestos materials in all walks of life (construction, vessel and auto repair, metallurgy, textile, mechanical and electrical engineering, chemistry, agriculture, etc.).The United States Environmental Protection Agency has restricted the use of asbestos products, such as the regulations on the prohibition of spraying fire-resistant coatings containing asbestos fibers, as promulgated in 1972.During the German 19802003 years, asbestos related occupation disease caused 12 thousand deaths. Asbestos killed 2000 people a year in france. The United States reported nearly 20000 cases of asbestos in the 19901999 period.In 1998, the WHO reiterated the carcinogenic effects of chrysotile asbestos, particularly the risk of mesothelioma, and continued to call for alternatives. WHO also stated that not many countries chose to ban the most EU Member States (all members to 2005 must prohibit all asbestos) and a growing number of other countries (Iceland, Norway, Switzerland, New Zealand, Czech Republic, Chile, Peru, South Korea).
Asbestos is an important fireproof material, so it is incorrect to ask after burning.According to your question, I suppose you want to understand the hazards of asbestos. I'll give you some information about asbestos.Asbestos, also known as asbestos, is a commercial term for silicate mineral products with high tensile strength, high flexibility, chemical and thermal resistance, electrical insulation, and spinnability. It is a general term for natural fibrous silicates and minerals. Under the jurisdiction of the 2 class a total of 6 kinds of minerals (with serpentine asbestos, amphibole asbestos, asbestos, actinolite anthophyllite tremolite asbestos asbestos, iron, etc.). Asbestos consists of a fiber bundle, consisting of very long, very thin fibers that can be separated from each other. Asbestos is of high fire resistance, electrical insulation and thermal insulation. It is an important fireproof, insulating and heat insulating material. However, because asbestos fibers can cause asbestos, pleural mesothelioma and other diseases, many countries have chosen to ban the use of such dangerous substances.
