IS POLLUTION leaving porpoises vulnerable to killer diseases? It seems so, now that researchers in London have found the strongest evidence so far linking the contamination of harbour porpoises by polychlorinated biphenyls (PCBs) to deaths from infectious disease.
PCBs have long been suspected of damaging the immune systems of whales and dolphins (
With the help of the Centre for Environment, Fisheries and Aquaculture Science at Burnham-on-Crouch in Essex, Bennett and Jepson have been conducting postmortems on harbour porpoises (
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