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From a preliminary postal survey of 3903 firms a representative
population was chosen for on-site survey and monitoring. The
results of this study indicate there are approximately one
hundred thousand abrasive blasters with personal exposures to
silica dust environments up to sixty million manhours per year.
The protection afforded these workmen is, on the average,
marginal to poor. Equipment deficiencies and lack of maintenance
are the rule rather chan the exception. The average sand blaster
would appear to have an excellent chance of receiving above TLV
quartz exposures and extreme noise exposures.
Disclaimer: This report is reproduced as received from the contractor. The
conclusions and recommendations contained herein represent the
opinion of the contractor and do not necessarily constitute
NIOSH endorsement.
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