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The Dangers of Exposure to Asbestos Before it was banned, asbestos was used in thousands commercial products. According to research, asbestos exposure can cause cancer as well as other health problems. It is impossible to determine if a product is asbestos-containing by looking at it and you can't smell or taste it. It is only found when asbestos-containing materials are drilled, chipped or broken. Chrysotile At its peak, chrysotile accounted for the majority of asbestos production. It was employed in many industries such as construction insulation, fireproofing, and construction. If workers are exposed to asbestos, they are likely to develop mesothelioma as well as other asbestos-related diseases. Since the 1960s, when mesothelioma became a major concern the use of asbestos has been reduced significantly. However, trace amounts are still found in products that we use in the present. Chrysotile is safe to use if you have a comprehensive safety and handling program in place. It has been proven that at the current controlled exposure levels, there is no undue risk to the workers who handle the substance. Inhaling airborne fibers has been found to be strongly linked with lung cancer and lung fibrosis. This has been confirmed in terms of intensity (dose) as well as the duration of exposure. A study that looked at a factory that used almost exclusively chrysotile in the production of friction materials compared mortality rates in this factory with national mortality rates. It was found that, for 40 years of processing asbestos chrysotile at a low level of exposure there was no signifi cant extra mortality in the factory. Contrary to other types of asbestos, chrysotile fibres tend to be smaller. They can enter the lungs, and enter the bloodstream. This makes them much more prone to cause negative effects than longer fibres. When chrysotile is mixed with cement, it is very difficult for the fibres to air-borne and pose any health risk. Fibre cement products are used extensively throughout the world particularly in structures like hospitals and schools. Research has proven that chrysotile has a lower chance to cause illness than amphibole asbestos such as amosite and crocidolite. Amphibole asbestos types have been the primary cause of mesothelioma as well as other asbestos-related illnesses. When cement and chrysotile mix, a durable and flexible material is created that can withstand extreme weather conditions and environmental hazards. It is also simple to clean after use. Professionals can safely eliminate asbestos fibres when they have been removed. college station asbestos attorneys refers to a set of silicate mineral fibrous that occur naturally in certain types of rock formations. It consists of six general groups: serpentine, amphibole anthophyllite, tremolite, anthophyllite, crocidolite (IARC, 1973). Asbestos minerals are made up of long, thin fibers that vary in length from fine to wide. They can be curled or straight. They can be found in nature in bundles or as individual fibrils. Asbestos is also found in powder form (talc), or mixed with other minerals to form talcum powder or vermiculite. These are widely used in consumer products, like baby powder, cosmetics and facial powder. Asbestos was used extensively in the first two thirds of the 20th century for shipbuilding insulation, fireproofing and other construction materials. The majority of occupational exposures were asbestos fibres borne by air, but some workers were exposed to contaminated vermiculite or talc, and to fragments of asbestos-bearing rock (ATSDR, 2001). Exposures varied from industry industry, era to and even geographical location. Asbestos exposure in the workplace is usually due to inhalation. However there have been instances of workers being exposed through contact with skin or eating food that is contaminated. Asbestos can only be found in the air due to natural weathering and the degradation of contaminated products, such as ceiling and floor tiles, car brakes and clutches as well as insulation. It is becoming increasingly apparent that amphibole fibers that are not commercially available could also be carcinogenic. These are fibres do not have the tight weaved fibrils of amphibole and serpentine minerals, but instead are loose, flexible and needle-like. These fibres can be found in the mountains, sandstones and cliffs of a variety of countries. Asbestos is able to enter the environment in a variety ways, including as airborne particles. It can also be absorbed into soil or water. This is caused by both natural (weathering of asbestos-bearing rock) and anthropogenic causes (disintegration of asbestos-containing wastes and disposal in landfill sites). Asbestos contamination of surface and ground water is largely associated with natural weathering, but it has also been triggered by anthropogenic activities such as milling and mining demolition and dispersal asbestos-containing material and the disposal of contaminated dumping soils in landfills (ATSDR, 2001). Asbestos fibres that are emitted from the air are the main cause of illness among people who are exposed to it during their occupation. Crocidolite Exposure to asbestos through inhalation is the most frequent method by which people are exposed to harmful fibres, which could be absorbed into the lungs and cause serious health issues. Mesothelioma as well as asbestosis and other illnesses are caused by asbestos fibres. Exposure to asbestos fibres can occur in other ways, too, such as contact with contaminated clothing or materials. This type of exposure is more dangerous when crocidolite (the blue form of asbestos) is involved. Crocidolite is a smaller, more fragile fibers that are easier to breathe in and can get deeper in lung tissue. It has been associated with more mesothelioma cases than other asbestos types. The six main types of asbestos are chrysotile amosite, epoxiemite, tremolite anthophyllite, and actinolite. The most common forms of asbestos are epoxiemite as well as chrysotile which together make up the majority of commercial asbestos employed. The other four asbestos types aren't as prevalent, but could still be found in older structures. They are less hazardous than chrysotile or amosite but can still be dangerous when mixed with other minerals, or when mined close to other mineral deposits like talc and vermiculite. Numerous studies have revealed an connection between asbestos exposure and stomach cancer. Several studies have found a link between asbestos exposure and stomach. However, the evidence is contradictory. Some researchers have cited a SMR (standardized death ratio) of 1.5 (95 percent confidence interval: 0.7-3.6), for all asbestos workers. However, others report an SMR of 1,24 (95% confidence interval: 0.76-2.5), for those who work in chrysotile mills and mines. The International Agency for Research on Cancer (IARC) has classified all asbestos types as carcinogenic. All kinds of asbestos may cause mesothelioma and other health issues, although the risks are different based on the amount of exposure people are exposed to, the kind of asbestos used and the duration of their exposure, and the manner in which it is inhaled or ingested. The IARC has advised that avoiding all forms of asbestos should be the highest priority as it is the safest option for people. If you have been exposed in the past to asbestos and suffer from respiratory issues or mesothelioma, then you should see your physician or NHS111. Amphibole Amphiboles are a grouping of minerals which can create prism-like or needle-like crystals. They are an inosilicate mineral that is composed of two chains of SiO4 molecules. They usually possess a monoclinic crystal system however, some have an orthorhombic structure. The general formula of an amphibole is A0-1B2C5T8O22(OH,F)2. The double chains comprise (Si, Al)O4 tetrahedrons linked together in rings of six tetrahedrons. The tetrahedrons are separated each other by octahedral sites that are surrounded by strips. Amphibole minerals can be found in metamorphic and igneous rocks. They are usually dark-colored and are hard. Because of their similar hardness and color, they can be difficult for some people to distinguish from pyroxenes. They also share a corresponding pattern of cleavage. However their chemistry permits a wide range of compositions. The chemical compositions and crystal structure of the various minerals in amphibole can be used to identify them. The five types of asbestos in the amphibole class include amosite, anthophyllite and chrysotile as well as crocidolite and actinolite. Each type of asbestos comes with its own unique properties. Crocidolite is the most hazardous asbestos type. It is composed of sharp fibers that can be easily inhaled into the lung. Anthophyllite is brown to yellowish in color and is composed of iron and magnesium. This type was used to make cement and insulation materials. Amphiboles are difficult to analyse because of their complex chemical structure and the numerous substitutions. Therefore, a detailed analysis of their composition requires special techniques. The most widely used methods for identifying amphiboles are EDS, WDS, and XRD. These methods are only able to provide approximate identifications. For instance, these techniques, cannot distinguish between magnesio hastingsite and magnesio hastingsite. These techniques also don't differentiate between ferro-hornblende or pargasite.