Baltimore approves study of toxic chemicals in Back River in hopes of figuring out how to get rid of them
"Traces of some toxic chemicals have persisted in animals and waterways such as the Back River in Baltimore County for decades after the U.S. government banned their use.
A study in the Back River soon could help explain why the chemicals continue to show up — and maybe provide insights into how to get rid of them.
Industrial chemicals known as polychlorinated biphenyls, or PCBs, were long used in electrical and hydraulic equipment and plastics. The cancer-causing chemicals were outlawed in 1979 but continue to be found throughout the environment, including in humans. . ."