Hazard identification by reviewing all relevant data.
Identification of “critical effects”.
Determination of the no-observed-adverse-effect level (NOAEL) of the findings that are considered to be critical effects.
Use of several adjustment factors to account for various uncertainties.
求教:有害识别作为第一步如何做?以及第二步关键影响如何鉴定?,最后是通过确定的关键影响来确认NOAEL数值,NOAEL 文献实验中有很多个,如何选择?
Hazard identification by reviewing all relevant data.
NOAEL之所以有很多个,原因1:就选取了多个的critical effects作为指标,每一个critical effect就对应一个NOAEL,原因2:选用了不同的routes of administrations,其三:选取不同的动物模型进行的毒理试验
可以参见:Guideline on setting health based exposure limits for use in risk identification in the manufacture of different medicinal products in shared facilities