IARC Classification

IARC Classification and Examples

This is a list of substances classified according to their dangerousness, based on the Ames Test (IARC) follows. IARC stands for International Agency for Research on Cancer.

Group 1 Carcinogens

[107 agents]: The agent (mixture) is definitely carcinogenic to humans. The exposure circumstance entails exposures that are carcinogenic to humans. There is enough evidence of the agents in this group to support carcinogenicity in humans. In some cases an agent (mixture) may be in this class when evidence of carcinogenicity in humans is less than enough, however there is enough evidence in experimental animals and more than enough evidence in exposed humans.

Aflatoxin	Benzidine	HIV
Arsenic	Ethanol	2-Naphthylamine
Asbestos	Vinyl Chloride	Helicobacter pylori
Benzene	Benz[a]pyrene	HPV

Group 2A Carcinogens

[58]: The agent (mixture) is probably carcinogenic to humans. The exposure circumstance entails exposures that are probably carcinogenic to humans.

Inorganic lead	Acrylamide	Dibenz[a,h]anthracene
UV	Benz[a]anthracene	Chloramphenicol

Group 2B Carcinogens

[249]: The agent (mixture) is possibly carcinogenic to humans. The exposure circumstance entails exposures that are possibly carcinogenic to humans.

Lead

Caffeine

Acetaldehyde

Group 3 Carcinogens

[512]: The agent (mixture or exposure circumstance) is not classifiable as to its carcinogenicity to humans.

Acrylic fibers

Group 4 Carcinogens

[1]: The agent (mixture) is probably not carcinogenic to humans. Caprolactam

Caprolactam