A risk factor is something that increases your chances of getting a disease like cancer. Different cancers have risk factors. For example, exposing the skin to sunlight is a risk factor for skin cancer. Smoking is a risk factor for cancers of the lung, mouth, larynx, bladder, kidney, and several other organs. People exposed to asbestos should be encouraged to avoid exposure to tobacco because, together, the risk of lung cancer is significantly higher than smoking without a history of exposure to asbestos. But having a risk factor, or even several, does not mean that you will get the main risk.Asbestos The risk factor for developing mesothelioma is exposure to asbestos. Asbestos refers to a family of fibrous minerals made of silicate. Asbestos has already used in many products such as insulation, tile, door seals, sound insulation, roofing, patching products, fireproof gloves and ironing board covers, and even brake pads.
As the link between asbestos and mesothelioma has become well known, the use of this material has almost ceased. Most use stopped after 1989, but it is still used in some products. Experts have linked this decline in the use of asbestos on the fact that the pace of development of mesothelioma is no longer increasing.Still, up to 8 million Americans may already have been exposed to asbestos. Exposure to asbestos particles suspended in air and construction materials is much less dangerous except when they are asbestos removed.Since is a naturally occurring mineral, it can also be found in dust And rocks in parts of the United States as well as in the world. According to the State Environmental Protection Agency, no less than 733,000 schools and public buildings in the country today contain asbestos insulation. As much as 10% to 15% of schools in the US may contain asbestos insulation.
People who may be at risk of occupational exposure to asbestos include some miners, factory workers, insulation manufacturers, railwaymen, shipbuilders, gas mask makers and construction workers , Especially those involved in the installation of insulation. Several studies have shown that family members of people exposed to asbestos have an increased risk of developing mesothelioma, because asbestos fibers are made at home on the workers’ clothes. There are 2 main forms Asbestos – serpentine fibers and amphiboles.Serpentine are curly and supple. Chrysotile is the only type of serpentine fiber and it is the most prevalent form of asbestos.Amphiboles are thin, rod-shaped fibers. There are 5 main types – crocidolite, amosite, anthrophylite, tremolite, actinolite and. Amphiboles (especially crocidolite) are considered the most carcinogenic (causing cancer). However, even the most commonly used chrysotile fibers are associated with malignant (cancerous) mesotheliomas and must be considered as dangerous as asbestos fibers are inhaled well.
When more are cleared in the nose, throat, trachea (trachea ), Or bronchi (the large tubes of lung respiration). The fibers are erased by sticking to mucus inside the air passages and being spat or swallowed. Long and thin, the fibers are less easily erased, and they can reach the ends of the small airways and enter the pleura of the lung and chest wall. These fibers can then directly damage the mesothelial cells of the pleura, and possibly cause mesothelioma.Asbestos fibers can also damage lung cells and lead to asbestosis (scar tissue formation in the lungs), and / or lung cancer . The risk of lung cancer in people exposed to asbestos is increased by 7 times, compared to the general population. Indeed, asbestosis, mesothelioma and lung cancer are the 3 most common causes of death and illness in people exposed to heavy asbestos.
Peritoneal mesothelioma, which forms in the abdomen, can cause coughing and swallowing asbestos fibers inhaled. Cancers of the larynx, pancreas, esophagus, colon and kidney may also come from exposure to asbestos, but the increased risk is small.The risk of developing mesothelioma is related to l Asbestos how much a person was exposed and how long lasted that exposure. People exposed to an early age, for a long period of time, and at higher levels are more likely to develop this type of cancer. Mesotheliomas take a long time to develop. The time elapsed between the first exposure to asbestos and the diagnosis of mesothelioma is generally between 20 and 50 years