The human race's use of asbestos has with controversy, was interspersed, of which much to the numerous accounts of the high level of power as a threat to the health can be attributed to.
Long before the beginning of the twentieth century even dawned, have countless stories comes from Greece and Rome of a mysterious illness "breathing" chronicled that had plagued slaves, the task of the asbestos cloth weave assigned were. In the late 1890s he suspected death of around 50 asbestos workers in France asked, what would the first ever study, be absorbed into the possible health risk of asbestos known. However, the outcome of the study showed that workers ill, known as Chalicosis died a generalized pneumoconiosis. But the fact that these workers strongly a combination of asbestos and cotton dust were exposed to could not be denied.
In the first decade of the 1900s, the stories about the health risks of asbestos were at best anecdotal. At the time asbestos was already a dust risk. But the severity of the seriousness of it is a danger for the health has the industry not yet recognized by. The first wave of recognition of the health hazards of asbestos saw use of the 1920s. A British pathologist with the name Dr. Cooke reported several cases of chronic bronchitis and fibrosis, which he found in post-mortem examinations of the lungs of the asbestos workers. He gave the name this disease asbestosis.
Dr. Cooke results then a large nationwide study in the health of some 360 of UK diligently asbestos textile workers followed. It was revealed that about one-fourth of these workers pulmonary fibrosis suffered. The improvement of rules relating to the manufacture of products containing asbestos and resulted in the implementation of hygiene standards in factories and establishment of the necessary medical examinations at work revealed the results of this investigation. The asbestos industry was also in the British workers compensation Act included. This unprecedented nationwide study became known as the Merewether report.
In the United States the use was marred the hundreds of millions of dollars between companies and workers controversies, of asbestos also much with a lot. In the early 1930s showed the Metropolitan life insurance company, which is about 29% of employees in the Johns Manville plant suffered under asbestosis. Out of court regulated the actions which have been followed. A few years later, a group of companies agreed to sponsor asbestos research studies, which look about the dangerous effects of asbestos exposure to human health. These same companies but insisted that they have complete control over the dissemination of the results of the study.
It was not until the 1980s that modern regulation on the use of asbestos sees the light of day. A ban on asbestos and phasing-out of regulation Protection Agency (EPA) was released the US Environmental in 1989. Two years later but this judgement in corrosion proof fittings vs. the EPA was overturned. Traces of asbestos found still legally in a number of products on the market today. The EPA has a concentration limit of 7 M fibres per litre of drinking water for fibers with lengths of deleted > = to 5. The occupational safety and health administration (OSHA) sets a lower and more stringent limit to 100,000 fibers/m3 of workplace for 8-hour shifts within a 40-hour/week. Other countries such as New Zealand and Australia followed suit issuing bans or imports of asbestos, 1984 and 1991.
Controversy surrounded the use of asbestos for ever. It is up to each country to ensure that effective regulatory laws to the extent of the use under control and safety of workers to keep are guaranteed.
Monday, July 18, 2011
Asbestos: History of health issues
9:18 PM
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