SPRINGFIELD, Ill. (AP) -- Illinois Emergency Management Agency officials say lab tests show no measurable increase of radiation after steam was released to cool a northern Illinois nuclear reactor.
Officials said Friday that the environmental sampling was conducted earlier this week after a reactor lost power and shut down at Byron Nuclear Power Plant on Monday. Agency director Jonathon Monken says the results confirm "no health hazard for people who live and work in the area."
Monday's outage started when an electrical insulator failed and fell off the metal structure that it was attached to. That interrupted power and caused the reactor to automatically shut down as a precaution.