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Australian Blue Asbestos : ウィキペディア英語版 | Australian Blue Asbestos Australian Blue Asbestos Pty. Ltd. (ABA) was a company founded by Lang Hancock, operated between the years (1938–1966) responsible for the mining, bagging and distribution of blue asbestos or crocidolite, in Wittenoom, in northern Western Australia. The operation, purchased in 1943 by CSR Limited, was operated as a subsidiary until its closure in 1966. Due to litigation brought about by workers about the effects of inhalation of airborne fibres of blue asbestos, the company was forced to close. It was alleged that ABA was negligent in its behaviour in that, with respect to the workers, families and residents of Wittenoom, the company willingly knew that conditions were well below standard and that dust levels exceeded accepted levels of the day. ==Asbestos== Blue asbestos is possibly 100 times more hazardous than white asbestos, as the fibres are much smaller (around 2.5 to 10 micrometres). The inhalation of asbestos results in illness and in most cases death, due to asbestosis, mesothelioma (of which asbestos is the only known cause) and other lung diseases.〔 This aetiology was described, reported and explained to the management of ABA as well as being the subject of many medical journal articles. The asbestos fibre count at the mine and other facilities was regularly measured at 1000 parts per cm3 or more. This is in stark contrast to the health department guidelines of the 1950s that required less than 176 parts per cm3. By 1967 the 'safe' level of asbestos was limited to 5 parts per cm3.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Australian Blue Asbestos」の詳細全文を読む
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