| Share | Phrase |
|---|
| 18.22% | hazardous [producing effect] condition |
| 13.81% | hazardous [producing effect] waste |
| 12.18% | hazardous [producing effect] material |
| 9.11% | hazardous [producing effect] situation |
| 6.43% | hazardous [producing effect] vapor |
| 5.92% | hazardous [producing effect] emission |
| 5.88% | potentially [cert] hazardous |
| 5.69% | hazardous [producing effect] gas |
| 5.14% | hazardous [producing effect] metal |
| 4.46% | hazardous to health |
| 3.86% | hazardous [producing effect] failure |
| 2.84% | environmentally [manner] hazardous |
| 2.44% | hazardous [producing effect] component |
| 2.44% | hazardous [producing effect] substance |
| 1.51% | extremely hazardous |