Metal and non‐metal miners' exposure to crystalline silica, 1998–2002

Weeks, James L.; Rose, Cecile S.

doi:10.1002/ajim.20323

Cited by 12 publications

(16 citation statements)

References 26 publications

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“…A related concern was highlighted by Weeks and Rose, (18) who analyzed the results of all silica exposure samples taken by the Mine Safety and Health Administration (MSHA) over the 5-year period 1998-2002 in metal and nonmetal mines. In all, they identified 16,207 8-hr full-shift personal air samples that contained >1% silica by mass and also met certain quality assurance criteria.…”

Section: Discussionmentioning

confidence: 99%

Particle Size Distribution and Particle Size-Related Crystalline Silica Content in Granite Quarry Dust

Sirianni

Hosgood

Slade

et al. 2008

Journal of Occupational and Environmental Hygiene

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Previous studies indicate that the relationship between empirically derived particle counts, particle mass determinations, and particle size-related silica content are not constant within mines or across mine work tasks. To better understand the variability of particle size distributions and variations in silica content by particle size in a granite quarry, exposure surveys were conducted with side-by-side arrays of four closed face cassettes, four cyclones, four personal environmental monitors, and a real-time particle counter. In general, the proportion of silica increased as collected particulate size increased, but samples varied in an inconstant way. Significant differences in particle size distributions were seen depending on the extent of ventilation and the nature and activity of work performed. Such variability raises concerns about the adequacy of silica exposure assessments based on only limited numbers of samples or short-term samples.

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Section: Discussionmentioning

confidence: 99%

Particle Size Distribution and Particle Size-Related Crystalline Silica Content in Granite Quarry Dust

Sirianni

Hosgood

Slade

et al. 2008

Journal of Occupational and Environmental Hygiene

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“…No cases of silicosis were found. Risk factors for silicosis in metal and non-metal miners have been enumerated by Weeks and Rose [2006]. These include latency of more than 10 years since first exposure, cumulative exposure, and exposure to freshly fractured quartz.…”

Section: Discussionmentioning

confidence: 99%

Airway disease in highway and tunnel construction workers exposed to silica

Oliver¹,

Miracle-McMahill²

2006

American J Industrial Med

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“…In the metal/nonmetal mining industry (103,327 samples) the overall geometric mean of silica exposure levels was 0.009 mg/m 3 ; 6.2% of all samples exceeded the MSHA PEL and 10.6% exceeded the NIOSH REL [National Institute for Occupational Safety and Health, 2008c]. Weeks and Rose [2006] evaluated metal/nonmetal miners' exposure to crystalline silica using 1998-2002 MSHA inspection data. The authors identified 12 jobs with more than 100 samples for which the mean exposure exceeded 0.05 mg/m 3 .…”

Section: Industry and Occupationmentioning

confidence: 99%