|Document ID (ISN)||110054|
|ISSN - Serial title
||1545-9624 - Journal of Occupational and Environmental Hygiene
|Convention or series no.
||Perkins R.A., Hargesheimer J., Vaara L.
||Evaluation of public and worker exposure due to naturally occurring asbestos in gravel discovered during a road construction project
||Sep. 2008, Vol.5, No.9, p.609-616. 20 ref.
||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.
||road work; Alaska; quarrying industry; exposure evaluation; asbestos
||fibre counts; phase-contrast microscopy; USA; determination in air; transmission electron microscopy; sampling and analysis; breathing atmosphere
||D - Periodical articles
|Country / State or Province||USA|
|Broad subject area(s)
Mining and quarrying