The answer PCBS has 37 possible clues. See the results below.
- Banned pollutants, briefly
- Banned pollutants
- EPA-banned chemicals
- Outlawed pollutants in the U.S.
- Environmental hazards, briefly
- Highly toxic pollutants
- Pollutants targeted in Great Lakes cleanups
- Environmental toxins, for short
- Toxic pollutants banned since the 1970s
- Chemicals banned by Congress in '76