Abstract
Traditional use of the noise dosimeter to assess employee exposure is to satisfy a regulatory mandate. Issues of effects of microphone placement and statistical reliability of the measurements have limited the usefulness of exposure measures so obtained and furthermore, have deflected attention from the real utility of the device to provide critical information for noise reduction. Experience with measurements on maintenance workers shows that time histories that are provided by certain dosimeters allow the engineer to identify noise generating processes that produce the major components of the exposure. As a practical matter, the high‐level processes that contribute several decibels to the time‐weighted‐average exposure are of greater concern than statistical variability induced by other factors. For this reason, acquisition of time histories in employee exposure assessment is encouraged.
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