Study finds secondhand smoke may be source of lead exposure in children

Lead exposure has long been a known health risk, especially for young children. Research has found that even at low levels, chronic exposure to lead can cause damage to the brain and other organs and cause problems with cognitive and motor skills. In response, public health officials have determined that there is no safe exposure level and have made great efforts to eliminate lead-based paint and lead pipes in homes and phase out the use of leaded gasoline.