Elevated Persistent Organic Pollutants (POPs) concentrations have been detected in high trophic level wildlife and have been associated with endocrine disruption and other adverse health effects. Recent evidence indicates that harbour seals (Phoca vitulina) inhabiting Puget Sound, WA are approximately seven times more contaminated with polychlorinated biphenyls (PCBs) than those inhabiting the ...

Although polychlorinated biphenyls (PCBs) were only commercially manufactured for about 50 years, their unusual versatility for certain purposes coupled with widespread use and improper disposal have resulted in global contamination (Hutzinger et al., 1974; Atlas et al., 1986). PCBs can enter the marine environment from leakages, urban runoff, dumped sewage sludge and industrial discharges (Con...