Did Lead Cans Doom the Franklin Expedition?
December 16th, 2009 | By Nora Sawyer | Filed in Current Events
A 160-year-old can of soup has yielded insight into the fate of Franklin’s 19th-century quest for Canada’s Northwest Passage:
High lead levels in both the soup and its container were detected by McMaster experts in experiments using X-ray fluorescence, a non-destructive method of analyzing objects that’s available at only two laboratories in Canada.
“The numbers showed us lead levels that were pretty much off the scale,” Fiona McNeill, a medical science and radiation expert, said in a statement after tests Tuesday on the can’s lid.
“It was an instantaneous test. We had already tested the soup found in the can and found high levels of lead, so we were certain we were going to find similar levels in the sealing solder.”
Lead poisoning has been cited as a major factor in the deaths of Franklin and his crewmen, who died while stranded in the Canadian Arctic. Bone tests on skeletons recovered from grave sites in the Arctic in the 1990s revealed dangerously high levels of lead, leading scientists to suspect that contaminated food lead to impaired judgment and poor health among Franklin and his crew.













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