Numbers of exposures by agent (in thousands) in the European Union in 1990–3
| Agent | Exposures (n) | IARC group3-150 |
|---|---|---|
| Acrylamide | 31 | 2A |
| Acrylonitrile | 32 | 2A3-151 |
| Adriamycin | 18 | 2A |
| Aflatoxins | 2 | 1 |
| 4-Aminobiphenyl | 0 | 1 |
| Arsenic and arsenic compounds | 150 | 1 |
| Asbestos | 1200 | 1 |
| Azacitidine | 1 | 2A |
| Azathioprine | 2 | 1 |
| Benzene | 1400 | 1 |
| Benzidine | 7 | 1 |
| Benzidine based dyes | 14 | 2A |
| Beryllium and beryllium compounds | 67 | 1 |
| Bischloroethyl nitrosourea (BCNU) | 10 | 2A |
| Bis(chloromethyl)ether (BCME) | 2 | 1 |
| 1,3-Butadiene | 32 | 2A |
| 1,4-Butanediol dimethanesulphonate (Myleran) | 3 | 1 |
| Cadmium and cadmium compounds | 210 | 1 |
| Captafol | 8 | 2A |
| Carbon tetrachloride | 75 | 2B |
| Ceramic fibres | 62 | 2B |
| Chlorambucil | 10 | 1 |
| Chloramphenicol | 12 | 2A |
| 1-(2-Chloroethyl)-3-cyclohexyl-1-nitrosourea (CCNU) | 2 | 2A |
| Chlorozotocin | <1 | 2A |
| Chromium VI compounds | 800 | 1 |
| Cyclosporin | 10 | 1 |
| Cisplatin | 25 | 2A |
| Cobalt and its compounds | 240 | 2B |
| Cyclophosphamide | 45 | 1 |
| Diesel engine exhaust | 3000 | 2A |
| Diethylstilbestrol | <1 | 1 |
| Diethyl sulphate | 2 | 2A |
| Dimethylcarbamoyl chloride | 0 | 2A |
| Dimethyl sulphate | 10 | 2A |
| Epichlorohydrin | 48 | 2A |
| Estrogens, non-steroidal | 5 | 1 |
| Estrogens, steroidal | 5 | 1 |
| Ethylene dibromide | 1200 | 2A |
| Ethylene oxide | 47 | 1 |
| N-Ethyl-N-nitrosourea | 0 | 2A |
| Formaldehyde | 990 | 2A |
| Glasswool | 930 | 2B |
| Hepatitis B virus (HBV) | Not estimated | 1 |
| Hepatitis C virus (HCV) | Not estimated | 1 |
| Ionising radiation | 150 | — |
| Lead and inorganic lead compounds | 1500 | 2B |
| Melphalan | 10 | 1 |
| Methyl-CCNU | <1 | 1 |
| N-Methyl-N-nitrosourea | 0 | 2A |
| 4,4'-Methylene bis(2-chloroaniline) (MOCA) | 3 | 2A |
| Methylene chloride | 280 | 2B |
| MNNG | 1 | 2A |
| Mustard gas (sulphur mustard) | 1 | 1 |
| 2-Naphthylamine | 2 | 1 |
| Nickel compounds | 560 | 1 |
| Nitrogen mustard | 3 | 2A |
| N-Nitrosodiethylamine | 13 | 2A |
| N-Nitrosodimethylamine | 14 | 2A |
| Oral contraceptives, combined | 5 | 1 |
| Oral contraceptives, sequential | 5 | 1 |
| p-Chloro-o-toluidine and its strong acid salts | 1 | 2A |
| Pentachlorophenol | 49 | 2B |
| Phenacetin | 3 | 2A |
| Polychlorinated biphenyls (PCB) | 15 | 2A |
| Polycyclic aromatic hydrocarbons (PAH) | 980 | 1–3 |
| Procarbazide hydrochloride | <1 | 2A |
| Radon and its decay products | 2700 | 1 |
| Silica, crystalline | 3200 | 2A‡ |
| Solar radiation (at least 75% of working time) | 9100 | 1 |
| Styrene | 400 | 2B |
| Styrene-7,8-oxide | 86 | 2A |
| Sulphuric acid mist | 710 | 1 |
| Talc containing asbestiform fibres | 28 | 1 |
| Tetrachloroethylene | 820 | 2A |
| Thiotepa | 3 | 1 |
| Tobacco smoke, environmental (at least 75% of working time) | 7500 | 1 |
| Treosulfan | 0 | 1 |
| Trichloroethylene | 280 | 2A |
| 1,2,3-Trichloropropane | 1 | 2A |
| Tris(2,3-dibromopropyl)phosphate | <1 | 2A |
| Vinyl bromide | 0 | 2A |
| Vinyl chloride | 40 | 1 |
| Vinyl fluoride | 0 | 2A |
| Wood dust | 2600 | 1 |
| Total | 42000 |