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Nuclear site workers test thousands of air samples

Cause of worker illnesses remains elusive, officials say

The Columbian
Published: July 10, 2014, 12:00am
11 Photos
A sign warns of radioactivity near a wind direction flag indicator at the &quot;C&quot; tank farm during a media tour of the Hanford Nuclear Reservation Wednesday, July 9, 2014 near Richland, Wash. Officials said Wednesday that 12,000 air samples taken at Hanford this year after more than three dozen workers reported being sickened by chemical vapors have failed to find a cause for the problem. (AP Photo/Ted S.
A sign warns of radioactivity near a wind direction flag indicator at the "C" tank farm during a media tour of the Hanford Nuclear Reservation Wednesday, July 9, 2014 near Richland, Wash. Officials said Wednesday that 12,000 air samples taken at Hanford this year after more than three dozen workers reported being sickened by chemical vapors have failed to find a cause for the problem. (AP Photo/Ted S. Warren) Photo Gallery

RICHLAND — About 12,000 air samples taken on the Hanford Nuclear Reservation this year after more than three dozen workers reported being sickened by vapors have failed to find a cause, Hanford officials said Wednesday. But Hanford officials said that doesn’t mean workers aren’t getting sick.

“Our workers are not exposed to vapors, but they are having symptoms,” said Tom Fletcher of the U.S. Department of Energy, which manages Hanford. “The question is why?”

“This isn’t something we are taking lightly,” Fletcher said.

None of the 12,000 air samples taken this year showed chemical levels above occupational-exposure limits, Fletcher said. In fact, more than 50,000 air samples dating to 2007 found no chemical exposure above the allowable limits, he said.

Hanford officials say they hope an investigation conducted by the Savannah River National Laboratory might shed light on what is causing the illnesses. A draft of that report is due by October.

Hanford, for more than four decades, made plutonium for nuclear weapons, and it now contains the nation’s greatest volume of nuclear waste. Much of the waste is stored in 177 giant underground storage tanks. It is workers at those tanks who are reporting smelling vapors and falling ill.

This year, 38 workers have sought treatment after reporting exposure to vapors. Some workers reported irritation in their eyes, nose or throat, or a metallic taste in their mouth, Hanford officials said at a media briefing Wednesday.

All 38 workers were checked by doctors and cleared to return to work, Hanford officials said.

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