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Killer Whales Face Long Term Health Risks From PCB's

British Columbia - New research says Orca's face long term health effects for early exposure to PCB's. Polychlorinated biphenyl's, also known as PCB's, have declined in ecosystems since laws were first passed in the 1970's. But, for animals that live a long time like Orca's, the PCBs take much longer to leave their bodies.

Submitted by Gareth Wiscombe on 13 Sep 02:59 and has 0 comments

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