Hundreds of children in the Washington D.C. area were exposed to dangerous levels of lead for city tap water from 2001 to 2003, a new study has concluded. According to the study, to be published in the journal Environmental Science and Technology, some infants and toddlers in high-risk neighborhoods were exposed to potentially IQ-damaging lead levels when lead leaching into the water supply starting in 2001. The results of the new study contradict safety reports issued by federal and local officials