Toxicity Assessment
- EPA Weight-of-Evidence Classification System for Carcinogenicity
Human carcinogen, with sufficient evidence from
Probable human carcinogen
B1 - with limited evidence from epidemiological studies
B2 - with sufficient evidence from animal studies and
inadequate evidence or no data from epidemiological studies
Possible human carcinogen, with limited evidence from animal
studies in absence of human data
Not classifiable as to human carcinogenicity, owing to
inadequate human and animal evidence
Evidence of noncarcinogenicity for humans, with no evidence of
carcinogenicity in at least two adequate animal tests in different
species or in both adequate animal and epidemiological studies
Notes: