Chloramine's effect on lead in drinking water

摘要

Chloramines,which have been linked to elevated levels of toxic lead in drinking water in Washington,D.C.,and Greenville,N.C.,have again been implicated in high lead concentrations,but this time the evidence comes from real-time experiments.In research published in this issue of ES&T (pp 3384-3387),chemist Jay Switzer at the Universi-ty of Missouri-Rolla describes real-time corrosion studies that show that lead scales on pipes are more likely to dissolve into drinking water when chloramines are used as a disinfectant.