take careful preparation | 0.48 |
take specialty gear | 0.46 |
spoil the environment | 0.45 |
enter the environment | 0.25 |
discharge into groundwa… | 0.16 |
exhibit hazardous chara… | 0.16 |
gas | 0.36 |
heavy metals | 0.19 |
liquid | 0.52 |
waste | 0.52 |
sludge | 0.37 |
the subject of provisio… | 0.33 |
asbestos | 0.30 |
firework | 0.21 |
gadget | 0.21 |
dangerous good | 0.16 |