How To Clean Up PCB-contaminated River
Sixteen years after 10-year-old Isaac PCB Oppers science experiment detected elevated levels of the chemical PCB in Lewistowns Big Spring Creek, cleanup of the waterway may finally be complete. I had ...
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 11 |
| 2 | Jonathan Scher | 3 |
| 3 | Paul Hupman | 2 |
| 4 | Samarth Jiwarajka | 1 |
| 5 | Engineer | 1 |
| 6 | Ibrahim TKR | 1 |