| Answer | Crossword Clue |
|---|---|
| SMOG | Air polluter |
| SOOT | Air polluter |
| NOISE | Urban polluter |
| SMOKESTACK | Urban polluter |
| SOOT | Urban polluter |
| EPA | Polluter-busting org. |
| EPA | Polluter-policing org. |
| PCB | Hudson River polluter, initially |
| GREENTAX | Penalty for a polluter |
| polluters | POLLUTER, one that pollutes (to make unclean or impure) |
