No-Observed Adverse Effects Level (NOAEL) 1
No-Observed Adverse Effects Level (NOAEL) 1 : An exposure level at which there are no statistically or biologically significant increases in the frequency or severity of adverse effects (to tissue, cells, organs, etc). 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 specific adverse effects). It is based on the highest exposure without adverse effect