Whales heavy with metal
June 24, 2010 2:57 PM Subscribe
"I don't see any future for whale species except extinction." A report (pdf) released Thursday by Ocean Alliance noted high levels of cadmium, aluminum, chromium, lead, silver, mercury and titanium in tissue samples taken by dart gun from nearly 1,000 whales over five years. Concentrations of chromium found in some whales was several times higher than the level required to kill healthy cells in a Petri dish. Mercury in some whales was 16 times higher than a typical shark or swordfish, both known for their high mercury levels. Beyond whales, "You could make a fairly tight argument to say that it is the single greatest health threat that has ever faced the human species."
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