News Earth

PCBs damage fish immune systems

By Janet Raloff

- More than 2 years ago

A common Arctic fish can suffer subtle immunological impairments from polychlorinated biphenyls (PCBs) at concentrations found in some remote polar waters, new research indicates.

NO COLD COMFORT. PCBs at polar concentrations can affect the Arctic char’s immune system. E.H. Jørgensen/Univ. of Tromsø

Alec G. Maule of the U.S. Geological Survey in Cook, Wash.,