>>23314381idk but galvanized mild steel can pump zinc fumes into the air which can temporarily make you very sick (luckily bc zinc is needed by the human body, excessive amounts are "fairly easily" sequestered by the body) and stainless steel releases hexavalent chromium which reacts with cell walls to become pentavalent chromium which reacts with dna to form trivalent chromium while damaging and deleting dna segments in the process thus causing mutagenic cancers and inhibiting your cells from replicating properly