| Answer | Crossword Clue |
|---|---|
| CLEANSE | Free from pollution |
| CLEAN | Pollution free |
| PURE | Free of pollution |
| WINDFARMS | Pollution-free power sources |
| biohazard | a danger of disease or pollution from living organisms |
| biohazards | BIOHAZARD, a danger of disease or pollution from living organisms |
| REBURN | Co-firing technique used to reduce pollution from electrical power plants |
| nonpoint | ing pollution or a pollutant that does not arise from a single indentifiable source |
| nonpoint | being a source of pollution (as runoff from farmland) that is not a point source |
