May not be considered non-toxic
Bismuth bullets, which became the primary form of bullets sold in Canada after lead shot was incrementally banned for environmental reasons between 1991 and 1999, may not be as non-toxic as originally thought, according to a new study. "Its not clear whether bismuth is a non-toxic shot alternative," says study co-author William Gough, a professor in the Department of Physical and Environmental Sciences at the University of Toronto at Scarborough. "Our final recommendation is to abandon bismuth and use steel shot until further research is completed."
Gough, along with graduate student Ruwan Jayasinghe and colleagues from McMaster and Queens universities and the University of Waterloo, examined the background levels of bismuth and lead in the muscle and liver tissues of mallard ducks, northern pintails, green-winged teals, Canada geese and snow geese. The waterfowl samples were all provided by hunters from First Nations Cree communities in the western James Bay region, who eat the birds as part of their traditional diet.
Prof. William Gough | EurekAlert!
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