Requirements that workers use supplied-air respirators for much of the work at the Hanford tank farms have been put in place since the work shown here was done at the tank farms.
Requirements that workers use supplied-air respirators for much of the work at the Hanford tank farms have been put in place since the work shown here was done at the tank farms. Courtesy DOE
Requirements that workers use supplied-air respirators for much of the work at the Hanford tank farms have been put in place since the work shown here was done at the tank farms. Courtesy DOE