| cancer-causing dioxin | 2.50 | Tests show very high presence of cancer-causing dioxin. | ||
| chemical dioxin | 0.46 | The potent chemical dioxin was found in some fish. | ||
| toxic dioxin | 0.33 | Chlorine was found to produce toxic dioxins in the pulp-bleaching process. | ||
| carcinogenic dioxin | 0.26 | Last year, motor oil contaminated with carcinogenic dioxin was found in animal feed in Belgium. |