Lead contained in paint and gasoline is banned in the U.S., but it persists in the environment in the form of house dust and paint chips, particularly in poorer neighborhoods. Lead-based paints were commonly used in the 1950s and '60s. According to the Alliance to End Childhood Lead Poisoning, 30 million U.S. homes built before 1960 still have lead in them. In 1978, Congress banned the use of lead paints, however problems associated with past usage have not been alleviated. Paint makers have ...MORE