Publication: Asbestos exposure among mitering workers
Issued Date
2012-01-01
Resource Type
ISSN
20937997
20937911
20937911
Other identifier(s)
2-s2.0-84879012159
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Safety and Health at Work. Vol.3, No.3 (2012), 235-240
Suggested Citation
Wantanee Phanprasit, Dusit Sujirarat, Pirutchada Musigapong, Penpatra Sripaiboonkij, Chalermchai Chaikittiporn Asbestos exposure among mitering workers. Safety and Health at Work. Vol.3, No.3 (2012), 235-240. doi:10.5491/SHAW.2012.3.3.235 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13927
Research Projects
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Title
Asbestos exposure among mitering workers
Other Contributor(s)
Abstract
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).