The Accuracy of Dust Exposure Estimates Obtained from Conventional Air Sampling

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Abstract
An intensive three-day study was performed at a uranium fabrication plant to determine the accuracy of measuring average occupational exposures by conventional air sampling. Statistical evaluation of the sample data indicated that accurate measurements of average exposures were obtained by conventional sampling, that the measurement precision error of individual samples was about 20%, and that most sample groups fitted either normal or log-normal frequency distributions. The errors associated with measuring average exposures are discussed, including reference to the significance of log-normal distributions of air sample data.

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