Lead and possible solution

http://www.provet.co.uk/Petfacts/healthtips/lead.htm
The environment where my brother Marcus lives is possible to be lead infested place, where we still use lead shells to hunt game particularly geese during spring time and where he lives during the summers is at a lake (www.albertsfishcamp.com) where the fish might be contaminated with heavy metals as well. Not so much for the sutton river brook trout which use to be my main diet when I was growing up. We are starting to see more and more of steel shots, which is a good. The community is been hunting in the bay and around the coast of Polar Bear Provincal Park for years and starting back with musket lead rounds! I makes me wonder how much lead is there out in coast line of Hudson Bay?

There was a show that open my eyes I watched last month about Swans dying off from lead poisoning, a lake pond was hunted using lead buck shots for many years and Swans fly in there annually. Researchers found out how to reduce the death rate by scaring the Swans away from the pond. (I forget the show).