Date Published: 04/21/2007 [Source]
Radon levels in two Riverside High School classrooms have remained low, three months after elevated levels were detected there, school district officials said.
The district has been monitoring the levels of the radioactive gas, even after subsequent tests in mid-January found the levels had dropped.
"The air systems are on," Superintendent Salvatore Luzio said. "So far, the results we got are very low, because of the ventilation."