Publication: Asbestos exposure among mitering workers
Issued Date
2012-09
Resource Type
Language
eng
ISSN
2093-7997 (Electronic)
2093-7911 (Linking)
2093-7911 (Linking)
Rights
Mahidol University
Rights Holder(s)
Safety and Health at Work (SH@W)
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, วันทนี พันธุ์ประสิทธิ์, ดุสิต สุจิรารัตน์, เฉลิมชัย ชัยกิตติภรณ์ 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/20.500.14594/2175
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Asbestos exposure among mitering workers
Corresponding Author(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.
Sponsorship
This study was part of the work supported by the Roofing
and Accessories Industry Club. The researchers conducted the
study independently with no party conferring benefits on the
authors and their associated organizations.