| Answer | Crossword Clue |
|---|---|
| PCB | Banned toxic pollutant, for short |
| PCB | Toxic pollutant, for short |
| PCB | Toxic environmental pollutant, for short |
| PCB | Banned chemical pollutant, for short |
| PCB | Toxic pollutant banned since the 1970s |
| PCB | Chemical pollutant, for short |
| PCB | Environmental pollutant, for short |
| PCB | Outlawed pollutant, for short |
| CFC | Ozone layer pollutant, for short |
