| toxic waste | 23.17 | -- Toxic waste dumps. | ||
| toxic chemical | 22.71 | A return to even more toxic chemicals? | ||
| toxic substance | 12.97 | Been exposed to toxic substances? | ||
| toxic gas | 8.76 | A caged canary was prepared to detect toxic gas. | ||
| toxic fume | 8.23 | It emits no toxic fumes. | ||
| toxic material | 5.79 | Tests revealed no toxic materials. | ||
| toxic effect | 3.62 | Care is needed to avoid toxic effects. | ||
| toxic metal | 2.83 | Toxic metals leak from neglected factories. | ||
| toxic emission | 2.63 | The presence of oxygen also curbs toxic emissions, he said. | ||
| toxic site | 2.57 | Thirty-three toxic sites. | ||
| toxic dump | 2.11 | Build it on a toxic waste dump? | ||
| toxic spill | 1.84 | Authorities try to contain toxic spill. | ||
| toxic cleanup | 1.78 | Toxic cleanup. | ||
| toxic compound | 1.78 | Dioxins are toxic chemical compounds produced when waste is burned. | ||
| toxic smoke | 1.78 | Many victims were believed to have suffocated from toxic smoke. | ||
| toxic level | 1.71 | This unmanaged data tide is at toxic levels. | ||
| toxic agent | 1.51 | What are the toxic agents? | ||
| toxic pesticide | 1.51 | Try not to use toxic pesticides too often. | ||
| toxic mold | 1.38 | That is the thing about toxic mold. | ||
| toxic alga | 1.32 | Nitrogen can also stimulate the growth of toxic algae that kill fish. |