Asbestos are a set of naturally existing fibrous minerals. These minerals exist in rocks and soil in different parts of the world. It contains elements like silicon, manganese and is commonly used in the…
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Previously, people did not know the risk associated with asbestos and began to use asbestos in a wide range of activities. With the due passage of time and extensive research by researchers, it was found that asbestos were responsible for a considerable proportion of health risk attached with people. People are both directly and indirectly affected by asbestos. People are directly affected by asbestos through inhalation of considerable amount of asbestos by people in their working environment. Asbestos fibers when exposed to air causes air pollution which indirectly affects people. Direct contact with person who inhaled asbestos can also affect the health of people. It was revealed that exposure to asbestos caused a number of health diseases. A few of them were manageable and some were fatal. Asbestos particles which are released into the air are inhaled by humans by breathing or through a membrane called mesothelium. The inhalation of these fibers can make cells more cancer prone. Earlier mainly the mining workers were exposed to asbestos and affected by it, but due to the wide acceptance of asbestos in industries, schools and housing, the number of people affected by asbestos has increased. The consequences of asbestos inhalation are usually associated with the amount of asbestos the person is exposed to, how often the person is exposed and the tenure of exposure. The main effects can result in asbestosis, pleural mesothelioma or lung cancer (Asbestos, 2010).
With the increase in awareness of health diseases associated with asbestos, continuous efforts have been made to minimize its impact on human health. In 1970, the Congress in US passed the Occupational Safety and Health Act with a view to protect workers from occupational hazards. EPA also monitors the exposure of asbestos through its regulations which is known as National Emission Standards for Hazardous Air Pollutants. This regulation
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The current system often must fail catastrophically before a new system is put in place. This can be seen clearly when looking into the history of building safety codes and their relation to fire safety. Many of these disasters could have had a much lower death toll if only fire safety codes and building regulations had been enacted before, instead of after, these fires.
It is a hydrous magnesium silicate with chemical compound with the formula Mg3Si2O5(OH)4. It is long known that prolonged exposure through inhalation of some forms of the tiny fibers can result in a lung condition known as asbestosis which is a rapidly fatal form of lung cancer.
The U.S. Environmental Protection Agency (EPA) has been given the authority through the Toxic Substances Control Act (TSCA) to detect and identify potentially hazardous products and utilization of existing and latest chemicals by the U.S. manufacturers. Subject to the thorough TSCA screening and thorough tests which EPA requires chemical manufacturing firms to conduct are both synthetic and naturally occurring substances with the exception of those regulated under different federal laws.
According to research data, 90 percent of the mesotheliomas occur in the pleural cavities and only 6 percent and 1 percent occur in the peritoneum and pericardium respectively (Galateau-Salle 2006). Mesothelioma can be of benign or malignant nature depending on its extent of differentiation, invasive properties and morphological characteristics(Bouros 2004).
Statistical data “Tobacco use kills approximately 5–6 million people annually worldwide, accounting for 1 in every 5 male deaths and 1 in 20 female deaths in individuals over 30years of age” (Jha 655). In spite of the fact, that smoking has negative consequences on the body and nature, total number of smokers is increasing every year across the nations.
They are actively working to determine when the presence of these chemicals becomes a threat, how to limit exposures to prevent these dangerous levels, and determine and implement efforts that would repair environmental damage done by these chemicals, toxicants, and dangerous substances that we, nature, and wildlife can survive successfully without the fear of health risks in the future.
It is extremely toxic and according to later medical evidence, this fibrous mineral causes extreme health problems like asbestosis and mesotheleoma. 3,500 people are estimated to be dying in UK every year due to Asbestos exposure. 25% of them are working in building industry or transport, or near asbestos sites.
These are more powerful than rim brakes.
Drum brakes have become obsolete because they are heavier and more complicated, In this case both pads are pressed outward against the braking surface on the inside of the hub's shell, which is packed with grease.
workers and there is a need for the understanding of the issues behind the formulation and construction of safe workplaces for both workers and visitors. It is with this notion in mind that this paper aims at presenting the different facets that appertain to industrial hygiene.
ncorporation of products like insulation, drywall, steel and fireproofing materials into the number of structure that were within the World Trade Centre building (Wallingford & Snyder, 2001). The result saw an estimate of 400 tons of asbestos being using. Then came the collapse
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