Asbestos exposure among mitering workers
The objectives are to compare the airborne asbestos concentrations resulted from mitering of abestos cement roof sheets by a high-speed motor and a hand saw, and to monitor whether other workers near the test sites are vulnerable to the fibers exceeding the occupational exposure limit. Four test cas...
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th-mahidol.139272018-06-11T12:26:55Z Asbestos exposure among mitering workers Wantanee Phanprasit Dusit Sujirarat Pirutchada Musigapong Penpatra Sripaiboonkij Chalermchai Chaikittiporn Mahidol University Suranaree University of Technology Thammasat University Chemical Engineering Engineering Medicine Social Sciences The objectives are to compare the airborne asbestos concentrations resulted from mitering of abestos cement roof sheets by a high-speed motor and a hand saw, and to monitor whether other workers near the test sites are vulnerable to the fibers exceeding the occupational exposure limit. Four test cases were carried out and altogether 7 personal and 4 area air samples were collected. The NIOSH method 7400 was employed for the air samplings and analysis. Using the phase contrast microscopy, fiber counting was conducted under Rule A. The study showed that the fiber concentration medians for personal air samples gathered from the two tools were 4.11 fibers/cc (ranged: 1.33-12.41 fibers/cc) and 0.13 fibers/cc (ranged: 0.01-5.00 fibers/cc) respectively. The median for the area samples was 0.59 fibers/cc (ranged: 0.14-3.32 fibers/cc). Comparing each study case, the concentration level caused by the high-speed motor saw was more than twice that of the hand saw. According to the area samples, the workers nearby the test site are at risk from high exposure to asbestos. Copyright © 2012 by Safety and Health at Work (SH@W). 2018-06-11T04:42:07Z 2018-06-11T04:42:07Z 2012-01-01 Article Safety and Health at Work. Vol.3, No.3 (2012), 235-240 10.5491/SHAW.2012.3.3.235 20937997 20937911 2-s2.0-84879012159 https://repository.li.mahidol.ac.th/handle/123456789/13927 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84879012159&origin=inward |
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Chemical Engineering Engineering Medicine Social Sciences Wantanee Phanprasit Dusit Sujirarat Pirutchada Musigapong Penpatra Sripaiboonkij Chalermchai Chaikittiporn Asbestos exposure among mitering workers |
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The objectives are to compare the airborne asbestos concentrations resulted from mitering of abestos cement roof sheets by a high-speed motor and a hand saw, and to monitor whether other workers near the test sites are vulnerable to the fibers exceeding the occupational exposure limit. Four test cases were carried out and altogether 7 personal and 4 area air samples were collected. The NIOSH method 7400 was employed for the air samplings and analysis. Using the phase contrast microscopy, fiber counting was conducted under Rule A. The study showed that the fiber concentration medians for personal air samples gathered from the two tools were 4.11 fibers/cc (ranged: 1.33-12.41 fibers/cc) and 0.13 fibers/cc (ranged: 0.01-5.00 fibers/cc) respectively. The median for the area samples was 0.59 fibers/cc (ranged: 0.14-3.32 fibers/cc). Comparing each study case, the concentration level caused by the high-speed motor saw was more than twice that of the hand saw. According to the area samples, the workers nearby the test site are at risk from high exposure to asbestos. Copyright © 2012 by Safety and Health at Work (SH@W). |
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Mahidol University Wantanee Phanprasit Dusit Sujirarat Pirutchada Musigapong Penpatra Sripaiboonkij Chalermchai Chaikittiporn |
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Wantanee Phanprasit Dusit Sujirarat Pirutchada Musigapong Penpatra Sripaiboonkij Chalermchai Chaikittiporn |
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Wantanee Phanprasit |
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Asbestos exposure among mitering workers |
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Asbestos exposure among mitering workers |
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Asbestos exposure among mitering workers |
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Asbestos exposure among mitering workers |
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Asbestos exposure among mitering workers |
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asbestos exposure among mitering workers |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/13927 |
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