Stainless Steel Welding and Respiratory Carcinogenesis

Stainless steel welding represents a significant occupational exposure scenario where workers inhale complex mixtures ofmetal compounds. The process generates fumes containing particles ranging from 0.01 to 1.0 micrometres in diameter, capable of penetrating deep into respiratory tissues. Epidemiological studies have documented elevated rates of respiratory diseases among welding personnel, prompting intensive research into specific causal agents and pathological mechanisms.The composition of stainless steel alloys, particularly those containing chromium (Cr) and nickel (Ni), creates fumes with distinct toxicological profiles. These metals exist in multiple oxidation states within welding environments, forming compounds with varying solubility and bioavailability. Understanding how these chemical forms interact with biological systems forms thefoundation of this investigation into respiratory carcinogenesis.