Type of LOAEL/NOAEL Study type Uncertainty Factor (UF)
LOAEL Animal study 1000 (10 for LOAEL, 10 for animal study and 10 for protection of sensitive population)
NOAEL Animal study 100 (10 for animal study and 10 for protection of sensitive population)
LOAEL Human study 100 (10 for LOAEL and 10 for protection of sensitive population)
NOAEL Human study 10 (10 for protection of sensitive population)
Table 1: Uncertainty Factor (UF) used to estimate RfC of metals in this study.