What is asbestos? What harm does it cause to the human body?
1. What is asbestos?Asbestos is a natural fibrous siliceous minerals generally referred to, is a widely applied in building fire prevention board of silicate mineral fiber, natural mineral fiber is unique, it has good tensile strength and good heat resistance and corrosion resistance, not easy to burn, so it is widely used. There are many kinds of asbestos, the most common three are chrysotile asbestos (Bai Shimian), iron asbestos (brown asbestos) and bluestone (Lan Shimian), of which chrysotile asbestos is the most abundant and the most widely used.
Exposure to asbestos fibers can lead to the following diseases:lung cancerMesothelioma - pleural or peritoneal cancerAsbestos - scarring of the lungs due to fibrosis of the lungs (asbestos, lungs)Symptoms associated with asbestos tend to have a long incubation period, which may occur only about 10 to 40 years after exposure to asbestos (lung cancer usually 15 - 20 years, mesothelioma 20 - 40 years). Asbestos has been recognized as a carcinogen by the International Centre for cancer research.3. Sources of indoor asbestos:(1) some of the old residential ceiling, pipe insulation, insulation materials are asbestos products, when the asbestos material is repaired, cutting, remodeling, there will be a lot of tiny asbestos fibers in the air. Some building materials, home improvement materials such as asbestos cement and vinyl plastic floors can distribute tiny asbestos fibers.
2. Asbestos's harm to human body:Asbestos itself is not toxic, it's the greatest harm from the fiber, which is a very small, almost invisible to the naked eye fiber, when these tiny fibers can be released after long time floating in the air, inhaled, inhaled the asbestos fiber victu years to accumulate in the human body. Attachment and deposition in the lungs, causing lung disease.
