chemical vapor exposure

RICHLAND, Wash. (AP) — Officials say the number of workers at Hanford Nuclear Reservation evaluated for chemical vapor exposure has climbed to 42, following reports last month that a tank had leaked several thousand gallons of radioactive waste...

RICHLAND, Wash. (AP)  Officials say six more Hanford Nuclear Reservation workers have been evaluated for chemical vapor exposure, bringing the total number to 26. The Tri-City Herald reports three people working Monday reported smelling suspicious odors and three others requested medical evaluations because of odors last week...