External Agents Important for Cancer Control
The following table summarizes the important occupational and industrial chemical exposures that carry a risk for cancer.
| Exposure | Chemical | Site of Cancer |
| Insecticide spraying | Arsenic | Skin |
| Nickel refining | Nickel | Paranasal Sinuses |
| Chromium plating | Chromium | Lung |
| Shale oil production | Polynuclear Aromatic Hydrocarbons | Scrotum |
| Vinyl chloride production | Vinyl Chloride | Liver |
| Gas retort work | naphthylamine | Bladder |
| Tire manufacturing | Benzene | Leukemia |
(From WHO, National Cancer Control Programmes, 1995)
to return to slide 15.