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Document ID (ISN)110054
CIS number 09-1123
ISSN - Serial title 1545-9624 - Journal of Occupational and Environmental Hygiene
Year 2008
Convention or series no.
Author(s) Perkins R.A., Hargesheimer J., Vaara L.
Title Evaluation of public and worker exposure due to naturally occurring asbestos in gravel discovered during a road construction project
Bibliographic information Sep. 2008, Vol.5, No.9, p.609-616. 20 ref.
Abstract During a road repair project in a remote region of Alaska, it was discovered that the materials used from a local material site contained asbestos. Evaluation of asbestos exposure to workers was required, as was the possible future exposure of workers and the general public. In addition, a decision was needed on whether to use materials from the contaminated site in the future. Of the almost 700 breathing zone air monitoring samples taken of the workers, 3% of the samples indicated exposures at or near 0.1 fibre/cc by phase contrast microscopy. Further analysis of 36 samples by transmission electron microscopy indicated that about 40% of the fibres were asbestos. Implications of these findings are discussed.
Descriptors (primary) road work; Alaska; quarrying industry; exposure evaluation; asbestos
Descriptors (secondary) fibre counts; phase-contrast microscopy; USA; determination in air; transmission electron microscopy; sampling and analysis; breathing atmosphere
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Construction industry
Broad subject area(s) Chemical safety
Browse category(ies) Exposure evaluation
Road transportation
Mining and quarrying