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The Dangers of Exposure to Asbestos Before it was banned, asbestos was used in a myriad of commercial products. Studies have shown that exposure to asbestos can cause cancer and other health problems. It is impossible to tell just by taking a look at something if it is made of asbestos. Neither can you smell or taste it. It is only found when the asbestos-containing materials are drilled, chipped or broken. Chrysotile At its height, chrysotile was responsible for 99% of the asbestos that was produced. It was used in many industries, including construction insulation, fireproofing, and insulation. If workers are exposed to asbestos, they can develop mesothelioma along with other asbestos-related illnesses. Thankfully, the use of this toxic mineral has decreased dramatically since mesothelioma awareness began to grow in the 1960's. However, traces of it are still present in products that we use in the present. Chrysotile is safe to use when you have a thorough safety and handling program in place. It has been discovered that at the current controlled exposure levels, there isn't an danger to the people working with it. Lung fibrosis, lung cancer and mesothelioma have been strongly associated with breathing in airborne respirable fibres. This has been proven for the intensity (dose) as well as the duration of exposure. A study that looked at a factory that used almost exclusively chrysotile for manufacturing friction materials compared mortality rates at this factory with national death rates. It was found that, for 40 years of preparing asbestos chrysotile in low levels of exposure there was no significant excess mortality in this factory. Chrysotile fibres are usually shorter than other forms of asbestos. They can pass through the lungs, and then pass through the bloodstream. This makes them more likely to cause ill-health effects than longer fibres. It is very difficult for chrysotile fibres be a threat to the air or pose any health risk when mixed with cement. Fibre cement products are widely used in a variety of locations around the world, including schools and hospitals. Research has proven that chrysotile's risk is lower to cause disease than amphibole asbestos like crocidolite and amosite. These amphibole types have been the primary cause of mesothelioma and various asbestos-related illnesses. When chrysotile is mixed in with cement, it forms a tough, flexible building product that can withstand harsh weather conditions and other environmental hazards. It is also simple to clean after use. Professionals can safely eliminate asbestos fibres when they have been removed. Amosite Asbestos refers to a set of silicate fibrous minerals which are found naturally in a variety of types of rock formations. It is comprised of six main groups: serpentine, amphibole, tremolite, anthophyllite and crocidolite (IARC, 1973). Asbestos minerals consist of long, thin fibers that vary in length from very fine to wide and straight to curled. These fibres can be found in nature as bundles or individual fibrils. Asbestos is also found in powder form (talc) or combined with other minerals to make vermiculite or talcum powder. They are used extensively as consumer goods, such as baby powder, cosmetics, and face powder. Asbestos was heavily used in the first two thirds of the 20th century to construct construction of ships as well as insulation, fireproofing and various 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 geographic location. The majority of asbestos exposures that workers were exposed to was due to inhalation. However, certain workers were exposed through contact with skin or through eating contaminated food. Asbestos can only be found in the environment because of natural weathering and the degradation of contaminated products, such as ceiling and floor tiles cars, brakes and clutches as well as insulation. There is emerging evidence that non-commercial amphibole fibers could also be carcinogenic. These are fibres that don't form the tightly interwoven fibrils that are found in 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 gets into the environment primarily as airborne particles, but it can also leach into soil and water. This can be caused by natural (weathering and erosion of asbestos-bearing rocks) and ananthropogenic (disintegration and removal of asbestos-containing wastes from landfill sites) sources. Asbestos contamination of surface and ground water is largely associated with natural weathering, but has also been triggered by anthropogenic activities like milling and mining, demolition and dispersal of asbestos-containing materials, and the removal of contaminated soils for disposal in landfills (ATSDR, 2001). Airborne asbestos fibres are the primary cause of disease among those exposed to asbestos in their occupation. Crocidolite Inhalation exposure is the most common method of exposure to asbestos fibres. These fibres can get into the lung and cause serious health problems. Mesothelioma and asbestosis as well as other illnesses are all caused by asbestos fibres. Exposure to fibres can occur in other ways, too like contact with contaminated clothing or construction materials. This type of exposure is particularly dangerous when crocidolite (the blue form of asbestos) is involved. Crocidolite fibers are softer and less brittle, making them easier to inhale. They also can get deeper within lung tissue. It has been associated with more mesothelioma cases than other asbestos types. The six main types are chrysotile and amosite. The most commonly used asbestos types are chrysotile and epoxiemite, which together make up 95% all commercial asbestos employed. The other four asbestos types are not as prevalent, but could still be present in older structures. They are not as dangerous as chrysotile or amosite but can still be a danger when combined with other minerals or when mined close to other mineral deposits like talc and vermiculite. Several studies have found an connection between exposure to asbestos and stomach cancer. A number of studies have confirmed that asbestos exposure is linked to stomach. The evidence is not conclusive. Some researchers have reported an SMR (standardized mortality ratio) of 1.5 (95% of the time CI: 0.7-3.6) for all asbestos-related workers and others have reported an SMR of 1.24 (95 percent of the CI = 0.76-2.5) for workers working in chrysotile mining and mills. The International Agency for Research on Cancer (IARC) has classed all forms of asbestos as carcinogenic. ohio asbestos lawyer can cause mesothelioma but the risks vary depending on how much exposure is taken, what type of asbestos is involved and the length of time that exposure lasts. The IARC has recommended that avoid all forms of asbestos should be the top priority since this is the best option for those who are exposed. However, if someone has been exposed to asbestos in the past and suffer from a condition such as mesothelioma and other respiratory diseases it is recommended that they seek advice from their GP or NHS 111. Amphibole Amphiboles are groups of minerals that can create prism-like or needle-like crystals. They are an inosilicate mineral made up of double chains of SiO4 molecules. They typically possess a monoclinic crystal system however some may have an orthorhombic structure. The general formula of an amphibole is A0-1B2C5T8O22(OH,F)2. Double chains contain (Si, Al)O4 tetrahedrons linked together in a ring of six tetrahedrons. The tetrahedrons can be separated by octahedral strips. Amphibole minerals are prevalent in igneous and metamorphic rocks. They are typically dark-colored and hard. Due to their similarity of hardness and color, they can be difficult for some people to differentiate from Pyroxenes. They also share a similar design of cleavage. Their chemistry allows for a range of compositions. The chemical compositions and crystal structures of the various minerals in amphibole can be used to determine their composition. Amphibole asbestos is comprised of chrysotile as well as the five asbestos types: amosite, anthophyllite (crocidolite) amosite (actinolite) and amosite. Each kind of asbestos has distinct characteristics. Crocidolite is the most hazardous asbestos kind. It has sharp fibers that can be easily breathed into the lungs. Anthophyllite comes in a brownish-to yellowish hue and is made mostly of iron and magnesium. This type was used to make cement and insulation materials. Amphibole minerals can be difficult to analyze because they have complex chemical structures and numerous substitutions. An in-depth analysis of the composition of amphibole minerals is a complex process that requires specialized techniques. The most widely used methods for identifying amphiboles is EDS, WDS, and XRD. However, these methods only give approximate identifications. These techniques, for example cannot differentiate between magnesio hornblende and hastingsite. In addition, these techniques can not distinguish between ferro hornblende and pargasite.