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The Dangers of Exposure to Asbestos Before it was banned asbestos was used in a myriad of commercial products. Research shows that exposure to asbestos can cause cancer and other health issues. You cannot tell by just looking at something if it is made up of asbestos. It is also impossible to taste or smell it. Asbestos is only detectable when materials containing it are broken, drilled, or chipped. Chrysotile At its peak, chrysotile accounted for the majority of asbestos production. It was widely used in industries, including construction, fireproofing, and insulation. If workers are exposed to asbestos, they can develop mesothelioma or other asbestos-related illnesses. Since the 1960s, when mesothelioma was first becoming a problem asbestos use has been reduced significantly. It is still found in many of the products we use in the present. Chrysotile is safe to use provided you have a comprehensive safety and handling program in place. Personnel handling chrysotile aren't exposed to a significant amount of risk at the current limit of exposure. Lung cancer, lung fibrosis and mesothelioma were all connected to breathing in airborne respirable fibres. This has been proven both in terms of intensity (dose) as and the duration of exposure. One study that looked into the operation of a factory that utilized almost exclusively chrysotile in the production of friction materials compared the mortality rates of this factory with national mortality rates. The study concluded that, after 40 years of converting low levels of chrysotile, there was no significant increase in mortality rates in this factory. In contrast to other forms of asbestos, chrysotile fibres tend to be shorter. They can penetrate the lungs and pass into the bloodstream. They are therefore more likely to cause health issues than fibres with longer lengths. When chrysotile is mixed with cement, it's very difficult for the fibres to be airborne and pose any health risk. Fibre cement products are utilized in many areas of the world including hospitals and schools. Research has shown that chrysotile is less prone to cause disease than amphibole asbestos such as amosite and crocidolite. These amphibole forms have been the primary cause of mesothelioma and other asbestos-related illnesses. When cement and chrysotile mix, a durable, flexible product is created which is able to withstand the most extreme weather conditions and environmental hazards. It is also simple to clean after use. Professionals can safely remove asbestos fibres once they have been removed. Amosite Asbestos is a class of fibrous silicates that are found in certain types of rock formations. It consists of six general groups: serpentine, amphibole anthophyllite, tremolite and crocidolite (IARC, 1973). Asbestos minerals consist of thin, long fibers that range in length from fine to broad. They can also be straight or curled. They are found in nature as individual fibrils or as bundles that have splaying ends, referred to as fibril matrix. Asbestos is also found in a powder form (talc), or combined with other minerals to form vermiculite or talcum powder. These are commonly used as consumer products, such as baby powder cosmetics, and face powder. The heaviest asbestos use was during the early two-thirds of the 20th century when it was utilized in insulation, shipbuilding, fireproofing, and other construction materials. The majority of asbestos-containing exposures to the workplace occurred in the air, but some workers were also exposed to asbestos-bearing rocks and vermiculite that was contaminated. Exposures varied by industry, time period and geographical location. Asbestos exposure in the workplace is mainly because of inhalation. However certain workers have been exposed by contact with their skin or through eating foods contaminated with asbestos. Asbestos is only found in the natural environment due to natural weathering and degradation of contaminated products, such as ceiling and floor tiles as well as car brakes and clutches, and insulation. It is becoming increasingly apparent that amphibole fibers that are not commercially available could also be carcinogenic. These are fibers that are not the tightly knit fibrils of the amphibole and serpentine minerals, but instead are loose, flexible and needle-like. These fibers are found in the cliffs and mountains of several countries. Asbestos may enter the environment in many ways, including as airborne particles. It can also leach out into water or soil. This can be caused by natural (weathering and erosion of asbestos-bearing rocks) and the anthropogenic (disintegration and removal of asbestos-containing wastes from landfill sites) sources. Asbestos contamination of surface and ground water is mostly due to natural weathering, but it has also been caused by anthropogenic activities like milling and mining demolition and dispersal asbestos-containing materials, and the removal of contaminated dumping soil in landfills (ATSDR, 2001). Exposure to asbestos-containing airborne fibers is the primary cause of illness in people exposed to asbestos at work. Crocidolite Exposure to asbestos through inhalation is the most common way people are exposed to harmful fibres, which could be absorbed into the lungs and cause serious health problems. These include asbestosis and mesothelioma. The exposure to asbestos can happen in other ways, too including contact with contaminated clothing, or building materials. This type of exposure is particularly dangerous when crocidolite (the blue asbestos form) is involved. Crocidolite has smaller, more fragile fibers that are easier to breathe in and can get deeper into lung tissue. It has been associated with a higher number of mesothelioma cases than any other form of asbestos. The six major types of asbestos are chrysotile, amosite and tremolite. They are epoxiemite, tremol anthophyllite, and actinolite. Chrysotile and amosite are the most frequently used types of asbestos and make up 95 percent of all commercial asbestos that is used. The other four asbestos types are not as widespread, but they can still be found in older structures. They are less dangerous than amosite and chrysotile, but they could be a risk when mixed with other asbestos minerals, or when mined close to other mineral deposits, such as vermiculite or talc. Numerous studies have revealed an association between stomach cancer and asbestos exposure. The evidence isn't unanimous. Some researchers have cited a SMR (standardized death ratio) of 1.5 (95% confidence interval: 0.7-3.6), for all asbestos workers, and others have reported an SMR of 1,24 (95 percent confidence interval: 0.76-2.5), for workers in chrysotile mines and mills. IARC, the International Agency for Research on Cancer has classified all forms of asbestos as carcinogenic. beaverton asbestos law firm can cause mesothelioma but the risk is different based on the amount of exposure is taken, what type of asbestos is involved and how long exposure lasts. The IARC has recommended that the prevention of all asbestos types is the most important thing to do, as this is the best option for those who are exposed. However, if someone has been exposed to asbestos in the past and suffer from an illness, such as mesothelioma, or other respiratory illnesses They should seek advice from their GP or NHS 111. Amphibole Amphiboles are a collection of minerals which can form prism-like and needle-like crystals. They are a type of silicate mineral made up of double chains of molecules of SiO4. They have a monoclinic arrangement of crystals, but some have an orthorhombic shape. The general formula of an amphibole is A0-1B2C5T8O22(OH,F)2. Double chains contain (Si, Al)O4 tetrahedrons linked together in rings of six tetrahedrons. The tetrahedrons can be separated from each other by strips of octahedral sites. Amphiboles occur in metamorphic and igneous rock. They are typically dark and hard. They can be difficult to distinguish from pyroxenes because they have similar hardness and colors. They also have a comparable Cleavage. However their chemistry allows an array of compositions. The chemical compositions and crystal structures of the various minerals in amphibole can be used to determine their composition. Amphibole asbestos includes chrysotile and the five asbestos types: amosite anthophyllite (crocidolite), amosite (actinolite), and amosite. Each type of asbestos has its own distinctive properties. Crocidolite is among the most dangerous asbestos type. It has sharp fibers which are easily inhaled into the lung. Anthophyllite can be found in a brownish or yellowish hue and is made primarily of magnesium and iron. This variety was used to make cement and insulation materials. Amphibole minerals are hard to analyze because they have a an intricate chemical structure and many substitutions. Therefore, a thorough analysis of their composition requires specialized techniques. EDS, WDS and XRD are the most widely used methods for identifying amphiboles. However, these methods can only provide approximate identifications. For example, these techniques cannot distinguish between magnesiohastingsite and magnesio-hornblende. Furthermore, these techniques do not distinguish between ferro-hornblende and pargasite.