In Philadelphia, some parents are convinced high levels of lead in soil put their children at risk for irreversible brain damage. The Philadelphia Inquirer and Daily News recently tested more than a hundred parks, playgrounds and backyards in the city's river wards and found nearly 75 percent of the areas tested had hazardous levels of lead. Jericka Duncan reports.
From: http://www.cbsnews.com/videos/high-lead-levels-found-in-philadelphias-backyards/
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