Two more Hanford tank farms reported smelling abnormal odors about 3:30 p.m. Friday.
They were at the change trailer downwind of the C Tank Farm, according to Washington River Protection Solutions.
One of the two workers reported symptoms typical of workers exposed to chemical vapors from Hanford’s underground waste tanks, and the other had no symptoms.
Both were sent to the Hanford medical provider for an evaluation and were later released to return to work.
They bring the total of workers checked for possible exposure to tank vapors this spring and summer to 42.