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Asbestos Exposure Asbestos Exposure Many American workers, across a variety of industries, were exposed to asbestos on the job. As a result, they are now at risk to develop mesothelioma. In this section, learn about the history of asbestos use, about the products that contained asbestos and about the companies that manufactured them. Find out which occupations and trades are at higher risk for asbestos exposure. Learn which job sites across the United States were contaminated with asbestos containing materials and about the risks associated with handling asbestos. What is Asbestos? Long considered a miracle material, asbestos boasts excellent fire- and heat- resistant properties. This naturally-occurring mineral, now known to be a human carcinogen (cancer-causing agent), has a history that dates back to ancient Greece. Asbestos was used as a building material, even as far back as during the Roman Empire. Asbestos was a component of fabric that would be used in clothing and a variety of other textiles. During the Industrial Revolution, asbestos use grew in factories and other heavy industries throughout the United States. Asbestos was used not only in factories, but also in oil refineries, chemical plants, on railroad cars, and in shipyards. Asbestos materials were used to insulate pipes and boilers in steam locomotives, to line tanks and ovens in refineries, and could be found literally everywhere aboard the nation’s ships, from engine rooms to galleys. As the twentieth century progressed, more uses for asbestos were found. It was used in the brakes and clutches of automobiles, insulated America’s new skyscrapers, and was used extensively in the construction industry, where it was used in asbestos products like joint compounds, cements, roofing shingles, ceiling and floor tiles, siding, stucco, plaster, and much more. Those workers at risk included any that worked in an asbestos-heavy industry or frequently handled asbestos products. By the middle of the twentieth century, it became apparent that asbestos was causing health problems. Asbestos exposure is now known to cause mesothelioma. This asbestos-related cancer can occur when asbestos is inhaled and the microscopic fibers become lodged within the outer lung tissue layer known as the mesothelium. This thin layer of cells protects and lubricates the chest cavity. Asbestos causes a sustained inflammation of these cells resulting in harmful scar tissue forming on the surface. This scar tissue lays the foundation for cancerous cells to develop. Despite knowledge of the health risks posed by asbestos, historical records indicate that many companies who used asbestos in their facilities knew that the material was dangerous, yet continued to allow its use. Over time, as stories of sick employees became commonplace, the American government began to consider imposing laws about regulating the use of asbestos. Resources for Asbestos Cancer Patients and Their Families Request a Free Mesothelioma Treatment Guide Connect with Top Mesothelioma Doctors Locate the Nearest Comprehensive Cancer Center Sign up for Our Mesothelioma Treatment Alert Speak with a 12-Year Mesothelioma Survivor Financial Assistance Available to Help with Treatment Costs Asbestos Exposure in the United States Exposure usually occurred at major construction jobsites, in shipyards, aboard navy vessels, and during construction or renovation of commercial buildings. People working in the vicinity of boilers and insulated piping often are at risk. In addition, teachers, students, and other staff members who work in older school buildings may be at risk of exposure to asbestos products, such as ceiling or floor tiles. Equally at risk are families of these workers, as asbestos often was carried home on clothing.
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