We have Tungsten, Cerium, Zinc, yytrium, antimony, cadmium, vanadium, iron cobalt, iron, chromium, copper, aluminum, nickel, tin, lead and molybdenum. All these elements would be found in tig welding fumes and back in those days thoriated tungsten wasn’t used, I took my findings to a tig welders Facebook page and they confirmed this also there wasn’t much tungsten found on the tie so you would think there would be more if they came from tungsten electrodes but what I also learned that because the tungsten itself does not smelt during the weld process there wouldn’t be much measurable tungsten particles in the fumes only from grinding the tips of the electrodes and that was done by the welder not the manager/engineer overseeing it. Fumes is the only way a manger or engineer would pick up particles from the weld on there tie.