W5's Todd Battis investigates how what was once considered the most toxic spot in North America was buried under an urban oasis.

The eighty-acre greenbelt, called Open Hearth Park, in Sydney, N.S. features walking trails, a soccer pitch, and a children's playground. One would be forgiven to forget that only a few short years ago it was the site of the most toxic place in Canada. A slough filled with deadly, poisonous chemicals - the legacy of more than a century of steelmaking in Sydney and the possible cause of terrible illnesses that plagued some neighbours.

An excellent program that shows the effects industry in Canada can have on both the environment and people living around it.  Can be used in science, social studies and geography classes.