There are neighborhoods in San Antonio where a high percentage of children are testing positive for lead poisoning.
Lead was eliminated from paint and gasoline decades ago, but the toxic element continues to turn up in blood tests of children.
At the Robert B. Green pediatric clinic in downtown San Antonio, two-year old Lonnie Romo is here for his check-up. The visit includes finding out if he has lead in his blood.
Dr. Ryan Van Ramshorst asks Lonnie’s parents some routine questions.
"Does he put things in his mouth like soil or clay?"