| Answer | Crossword Clue |
|---|---|
| PCB | A water pollutant |
| PCB | Water pollutant |
| MERC | Current water pollutant: Abbr. |
| SOOT | A pollutant |
| SMAZE | Pollutant that's a portmanteau |
| pollutants | POLLUTANT, a substance causing pollution |
| nonpoint | ing pollution or a pollutant that does not arise from a single indentifiable source |
