November 18, 1999 Orca Whales Contaminated by Ocean Chemical Pollution Orca "killer whales" throughout the world are now contaminated by a poison that the United States and Canada banned twenty years ago, but other countries such as Russia still use. That poison is PCBs, poly chlorinated biphenyls, once used everywhere for cooling and insulating electrical transformers and coloring newspaper comics. PCBs were even sprayed on country roads to keep dust down. Dr. Rob Macdonald, an oceanographer for the Canadian Institute of Ocean Sciences in Sidney, British Columbia, says "the PCB paintbrush has covered the globe." Marine scientists are concerned that the oceans are so polluted with the dangerous chemicals.
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