ATLANTA (AP) - An Atlanta school official says carbon monoxide detectors will be placed in an elementary school where dozens of students were sickened by the gas -- and plans are under way to install the devices "across the entire district."
Atlanta Public Schools Associate Superintendent Steve Smith made the comments at a Thursday news conference.
More than 40 students and some adults at Finch Elementary School were treated at hospitals after Monday's leak.
Superintendent Erroll Davis said Thursday that an investigation into what caused the leak now focuses on human error rather than equipment failures.
Smith said the maintenance workers failed to reopen a valve after doing work on the Finch Elementary boiler a few days before the leak. Davis said those workers did not initially come forward with that information.
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