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Glossary
Pages 93-96

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From page 93...
... A dose with a specified low level of excess health risk, generally in the range of 1% to 10%, that can be estimated from data with little or no extrapolation outside the experimental dose range. For laboratory animals, an exposure (usually at low concentrations)
From page 94...
... The lowest exposure level at which there are statistically or biologically significant increases in frequency or severity of adverse effects between the exposure population and its appropriate control group. The highest dose that can be administered to animals for two years without causing mortality from causes other than cancer.
From page 95...
... no-observed-adverse- An exposure level at which there are no effect level (NOAEIL) statistically or biologically significant increases in the frequency or severity of adverse effects between the exposed population and its appropriate control; some effects may be produced at this level, but they are not considered as adverse, nor precursors to adverse effects.
From page 96...
... uncertainty factors Factors used to divide a no-observedadverse-effect level (NOAEL) or lowestobserved-adverse-effect level (LOAEL)


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