Hanford Air Samples Below Occupational Exposure Levels

Since January, nearly 40 workers at the largest nuclear waste storage site in the country reported breathing difficulties and other symptoms they attributed to vapors emanating from storage tanks, but the Associated Press reports air samples taken at the Hanford Nuclear Reservation in Washington state did not identify a cause for the problem.Hanford officials on Wednesday announced that all 12,000 air samples it collected had chemical levels below occupational exposure limits. “Our workers are not exposed to vapors, but they are having symptoms,” said Tom Fletcher, an assistant man...