Flu-like symptoms last one to two days. The illness is related to the inhalation of zinc fumes during the welding of metals coated with or containing zinc, such as galvanized metals and brass. Copper fumes can also cause metal fume fever. Copper fumes are produced in the welding of metals containing copper, such as brass and bronze. Nickle is a component of some alloys, such as stainless steel.
Skin contact can cause dermatitis.
Inhaling the dust, fumes, or mist of inorganic nickel increases the risk of lung cancer and nasal cancer. Chromates are common primer pigments. Welding on a surface that till has some remaining primer paint can release chromates into the air. Those substances increase the risk of developing lung cancer. Never weld while in a drum or other confined space without adequate ventilation, an airline respirator, or self- contained breathing equipment.