| But we can provoke a quicker second hit by treating the animals with a chemical mutagen or a carcinogen. |
| Unfortunately, Perc is also a suspected carcinogen which pollutes air and water supplies. |
| Broad-spectrum ultraviolet radiation from the sun or artificial light sources was added as a known carcinogen. |
| In addition, the manufacture and incineration of PVC releases dioxin, a known human carcinogen, into the environment. |
| First, the roller coaster's wooden components have been treated with copper, chromium and arsenic, a carcinogen. |
| The most potent human carcinogen known is the mycotoxin aflatoxin, and it is certainly not an artificial chemical. |
