Abstract
The U.S. Department of Energy has called for 42 actions to correct safety deficits that led to a series of radioactive releases during demolition of the now-closed plutonium processing facility at the former Hanford nuclear weapons production site in Washington state. The actions include better application of coatings and use of other technologies to control spread of radioactive contamination, broader radiation boundaries, improved air-dispersion measurement and modeling, and greater involvement of site workers as demolition moves ahead. Several hundred workers were tested for radiation exposure after the releases, and results showed that several dozen workers had inhaled or ingested detectable radiation but at levels acceptable to the department. Site remediation is currently halted and will resume after the Washington State Department of Ecology and EPA are satisfied the operation is safe, officials say. During World War II and the Cold War, the Hanford site was one of more than 100
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