Study: PCB Pollution Threatens to Wipe Out Killer Whales
More than 40 years after the first initiatives were taken to ban the use of PCBs, these chemical pollutants remain a deadly threat to animals …
More than 40 years after the first initiatives were taken to ban the use of PCBs, these chemical pollutants remain a deadly threat to animals …
Hailed as a miracle in the 1950s, the potent bug killer DDT (dichloro-diphenyl-trichloroethane) promised freedom from malaria, typhus and other insect-borne diseases. Manufacturers promoted it …