Small amounts of lead may damage children's kidneys

Small amounts of lead may damage children's kidneys  
http://www.eurekalert.org/pub_releases/2010-01/jhmi-sao010610.php
  
"Small amounts of lead in the bodies of healthy children and teens — amounts well below the levels defined as "concerning" by the U.S. Centers for Disease Control and Prevention (CDC) — may worsen kidney function, according to a Johns Hopkins Children's Center study published in the Jan. 11 issue of Archives of Internal Medicine."