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The Dangers of Exposure to Asbestos

Asbestos was used in a variety of commercial products prior to when it was banned. According research, exposure to asbestos can cause cancer and many other health issues.

You can't tell if something has asbestos just simply by looking at it and you cannot smell or taste it. It can only be found when asbestos-containing materials are chipped, drilled or broken.

Chrysotile

At its peak, chrysotile made up 99% of the asbestos produced.  somerville asbestos lawsuit  was used in many industries like construction insulation, fireproofing, and insulation. If workers are exposed to asbestos, they may develop mesothelioma or other asbestos-related illnesses. Fortunately, the use this hazardous mineral has declined drastically since mesothelioma awareness started to spread in the 1960's. However, traces of it can still be found in products that we use today.

Chrysotile can be used in a safe manner when a thorough safety and handling plan is put into place. It has been proven that, at the present 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.

In one study, mortality rates were compared between a factory which used almost exclusively Chrysotile for the production of friction materials and the national death rate. It was concluded that for 40 years of preparing asbestos chrysotile at a low level of exposure, there was no significant excess mortality in this factory.

Chrysotile fibres are typically shorter than other forms of asbestos. They can enter the lungs and enter the bloodstream. This makes them much more likely to cause health consequences than longer fibres.

When chrysotile is mixed into cement, it is extremely difficult for the fibres to air-borne and pose any health risk. Fibre cement products are widely used in various parts of the world, including schools and hospitals.

Research has revealed that chrysotile is less prone to cause illness than amphibole asbestos, like crocidolite and amosite. Amphibole asbestos kinds have been the main cause of mesothelioma as well as other asbestos-related diseases. When chrysotile is mixed in with cement, it creates a tough, flexible building product that can withstand the most extreme conditions in the weather and other environmental dangers. It is also very easy to clean up after use. Asbestos fibres are easily removed by a professional and taken away.

Amosite

Asbestos is a term used to describe a class of fibrous silicate minerals that naturally occur in certain types of rock formations. It is divided into six groups which include amphibole (serpentine) and Tremolite (tremolite), anthophyllite (crocidolite) and anthophyllite.

Asbestos minerals are made up of thin, long fibers that vary in length from fine to wide. They can also be curled or straight. These fibres are found in nature as individual fibrils, or as bundles with splaying ends called a fibril matrix. Asbestos minerals are also found in powder form (talc) or mixed with other minerals and sold as vermiculite and talcum powder, which have been widely used in consumer products such as baby powder cosmetics, face powder and other.

The largest use of asbestos occurred in the first two-thirds period of the twentieth century, when it was used in insulation, shipbuilding, fireproofing, and other construction materials. The majority of asbestos exposures for work occurred in the air, however some workers also were exposed to asbestos-bearing rock fragments and contaminated vermiculite. Exposures varied by the type of industry, the time period, and geographic location.

The majority of asbestos-related exposures in the workplace were because of inhalation, but some workers were also exposed via skin contact or through eating contaminated food. Asbestos is currently only found in the air due to natural weathering of mined ores and the deterioration of products contaminated with asbestos like insulation, car brakes and clutches as well as ceiling and floor tiles.

It is becoming apparent that non-commercial amphibole fibers can also be carcinogenic. They are not tightly weaved like the fibrils in amphibole and serpentine, they are loose and flexible, and needle-like. These fibers are found in the cliffs and mountains in a variety of countries.

Asbestos can be found in the environment as airborne particles, but it can also leach into soil and water. This happens both through natural (weathering and erosion of asbestos-bearing rocks) and ananthropogenic (disintegration and disposal of asbestos-containing wastes at landfill sites) sources. Asbestos contamination in surface and ground waters is primarily caused by natural weathering. However it can also be caused by anthropogeny, such as through the mining and milling of asbestos-containing materials demolition and dispersal and the disposal of contaminated dumping material in landfills (ATSDR 2001). Asbestos fibres that are emitted from the air are the most significant reason for illness among those who are exposed to it during their work.

Crocidolite

Exposure to asbestos through inhalation is the most frequent method by which people are exposed harmful fibres, which could be absorbed into the lungs and cause serious health issues. Mesothelioma, asbestosis, and other illnesses can be caused by asbestos fibres. The exposure to asbestos can happen in a variety of ways like contact with contaminated clothing or building materials. This type of exposure is more dangerous when crocidolite (the blue form of asbestos) is involved. Crocidolite fibers are smaller and more fragile making them more palatable to breathe. They can also get deeper in lung tissues. It has been associated with more mesothelioma cases than other types of asbestos.

The six main types of asbestos are chrysotile amosite as well as epoxiemite. Tremolite is anthophyllite and actinolite. The most commonly used asbestos types are epoxiemite and chrysotile, which together make up 95% all commercial asbestos used. The other four asbestos types aren't as common, but may still be present in older structures. They aren't as hazardous as amosite or chrysotile however they could still pose a threat when combined with other minerals or when mined near other naturally occurring mineral deposits like talc and vermiculite.

Numerous studies have proven an association between stomach cancer and asbestos exposure. However, the evidence is contradictory. Some researchers have cited an overall SMR (standardized mortality ratio) of 1.5 (95 percent range of CI: 0.7-3.6) for all asbestos-related workers while other studies have reported an SMR of 1.24 (95% 95% CI: 0.76-2.5) for those working in chrysotile mines and mills.

IARC the International Agency for Research on Cancer has classified all types of asbestos carcinogenic. All forms of asbestos could 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 as well as the length of their exposure and the manner in which it is inhaled or ingested. The IARC has advised that the prevention of all asbestos types should be the highest priority, as this is the most secure option for those who are exposed. However, if people have been exposed to asbestos in the past and are suffering from an illness, such as mesothelioma or other respiratory illnesses it is recommended that they seek advice from their GP or NHS 111.

Amphibole

Amphibole is a class of minerals that form long prism or needlelike crystals. They are a kind of inosilicate mineral made up of double chains of SiO4 molecules. They usually possess a monoclinic crystal system but some also have an orthorhombic structure. The general formula of an amphibole is A0-1B2C5T8O22(OH,F)2. The double chains are composed of (Si, Al)O4 tetrahedrons linked together in a ring of six tetrahedrons. Tetrahedrons are distinguished from each other with octahedral strips.

Amphiboles are found in both igneous and metamorphic rock. They are typically dark-colored and tough. Due to their similarity in strength and color, they can be difficult for some people to distinguish from pyroxenes. They also share a corresponding cut. However their chemistry permits an array of compositions. The various amphibole mineral groups are identified by their chemical compositions and crystal structures.

Amphibole asbestos includes chrysotile and the five types of asbestos: amosite anthophyllite (crocidolite), amosite (actinolite) and amosite. Each variety of asbestos has distinct characteristics. Crocidolite is among the most dangerous asbestos kind. It has sharp fibers that can easily be breathed into the lungs. Anthophyllite is yellowish to brown in color and is composed of magnesium and iron. This type of stone was once used in cement and insulation materials.

Amphibole minerals can be difficult to study because of their a complicated chemical structure and numerous substitutions. Therefore, a thorough analysis of their composition requires specialized techniques. The most popular methods for identifying amphiboles are EDS, WDS, and XRD. These methods are only able to provide approximate identifications. These methods, for instance cannot differentiate between magnesio hornblende and magnesio hastingsite. These techniques do not distinguish between ferro-hornblende as well as pargasite.