In addition, the U.S. EPA uses the National Research Council's four-step process for human health risk assessment: (1) Hazard Identification, (2) Dose-Response Assessment, (3) Exposure Assessment, and (4) Risk Characterization.
in adDiTion, the u.S. ePa usEs thE natioNal ResEarch counCiL's four-stEp prOcess fOr HUmAn hEalTh rIsk AsSessMenT: (1) HazArD IDentificatiOn, (2) doSe-ResPonsE AsSeSsMent, (3) EXposurE ASSEssmEnt, And (4) riSk chAraCteriZation.