Table 1.

Group 1 agents evaluated in the IARC Monographs Volumes 1–120, excluded from primary list of occupational carcinogens

Agent	Volume (a)	Year (a)	Cancers with sufficient evidence in humans (b)
Reason for Exclusion: Group 1 classification based on mechanistic upgrade
Ethylene oxide	60	1994	N/A
2,3,4,7,8-Pentachlorodibenzofuran	100F	2012	N/A
3,4,5,3’,4’-Pentachlorobiphenyl (PCB-126)	100F	2012	N/A
4,4'-Methylenebis(2-chloroaniline) (MOCA)	99	2010	N/A
Benzidine, dyes metabolized to	99	2010	N/A
Benzo(a)pyrene	92	2010	N/A
Neutron radiation	75	2000	N/A
Reason for Exclusion: Evaluation did not include occupational epidemiology data
Aflatoxins	Sup 7	1987	Liver
Erionite	Sup 7	1987	Mesothelioma
Fission products, including strontium-90	100D	2012	Salivary gland, oesophagus, stomach, colon, lung, bone, basal cell of the skin, female breast, kidney, urinary bladder, brain and CNS, thyroid, leukaemia
Fluoro-edenite fibrous amphibole	111	2017	Mesothelioma
Reason for Exclusion: Group 1 classification is for an occupation, industry, or process
Acheson process, occupational exposure associated with	111	2017	Lung
Aluminium production	Sup 7	1987	Lung, bladder
Auramine production	Sup 7	1987	Bladder
Coal gasification	Sup 7	1987	Lung
Coal-tar distillation	92	2010	Skin
Coke production	Sup 7	1987	Lung
Haematite mining (underground, with exposure to radon)(c)	Sup 7	1987	Lung
Iron and steel founding (occupational exposure during)	Sup 7	1987	Lung
Isopropyl alcohol manufacture using strong acids	Sup 7	1987	Nasal cavity
Magenta production	Sup 7	1987	Bladder
Painter (occupational exposure as a)	47	1989	Lung, mesothelioma, bladder
Rubber manufacturing industry (occupational exposures in)	Sup 7	1987	Leukaemia, lymphoma, lung, stomach, bladder