23.02.2013 Views

Industrial Hygiene Exposure Assessment: The Good, Bad, and

Industrial Hygiene Exposure Assessment: The Good, Bad, and

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AIHA <strong>Exposure</strong> <strong>Assessment</strong> Strategy<br />

� Quantitative <strong>Exposure</strong> <strong>Assessment</strong>s<br />

� Applying Statistics<br />

� Log Normal Distributions – More on this in the “<strong>Bad</strong>”<br />

� Mean vs. Upper Tail<br />

� 95% confident below 95%tile estimate<br />

� Uncertainty<br />

� Uncertainty in measurement<br />

� Uncertainty in OELS<br />

� Statistics should aid judgment not make the judgment

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