PHILADELPHIA (October 25, 2011) -- The U.S. Environmental Protection Agency has declared October 23-30, 2011 Lead Poisoning Prevention Week as part of the agency’s on-going efforts to make families aware of the hazards presented by lead and lead-based paint in the home and places where children under six years of age are regularly present.....Lead is a major environmental health hazard for young children. Research shows that blood lead levels of 10 micrograms per deciliter of blood (µg/dL) in young children can result in lowered intelligence, reading and learning disabilities, impaired hearing, reduced attention span, hyperactivity, and antisocial behavior. However, there currently is no demonstrated safe concentration of lead in blood, and adverse health effects can occur at lower concentrations.If caught early, these effects can be limited by reducing exposure to lead or through medical treatment. Children under six years of age are particularly at risk and pregnant women should avoid exposure to lead as the effects can be passed on to the child.