Welding fume emission
Weld fume emission is the release of airborne particles and gases during welding through evaporation and condensation of metals. It can be dangerous if the concentration in the air gets too high.
Physico-chemical mechanism of action
During welding, metals evaporate and release chemical compounds such as sulfur, nitrogen, and carbon. These evaporation molecules condense in the air to form particles and gases.
Metallurgical relevance & risks during welding
Welding fume emission can be hazardous as it contains toxic substances that can affect operators. Excessive concentrations lead to health problems such as respiratory diseases and lung damage.
Workshop practice & action instructions
Use technical capture systems to measure welding fume emission. Keep the concentration below legal limits (e.g., 5 mg/m³ for sulfur dioxide). Prohibit smoking near the welding area and enhance ventilation.