Test Content
A distinction is made between breathable substances (up to 100 µm large) and alveoli penetrating, i.e. Respirable substances (up to 10 µm large). These particles may reach the alveoli and deposit there and are therefore particularly dangerous. 98.9 % of particles in welding fumes are even below 0.4 µm in size.
The composition of welding fumes is determined by the material to be welded and the welding process in use.
Type of substance | Components | Fumes components | Hazard |
---|---|---|---|
Gas | Inert gas | Carbon dioxide, argon | Risk of suffocation |
Gas | Gases created by the welding process |
Carbon monoxide (can have an effect on fertility) Ozone |
Risk of suffocation Injury to airways and lungs (incl. cancer risk) |
Gas | Gases created by chemicals on the metal (e.g. paint, oil, solvents) |
Hydrogen chloride, phosgene Hydrogen, cyanide, formalin, isocyanate |
Injury to airways and lungs (incl. cancer risk) Suffocation, injury to airways and lungs (incl. cancer risk), allergic reaction, asthma |
Particles | Steel, not coated and not varnished | Aluminum, cadmium, chrome, iron oxide, manganese, magnesium, nickel, zinc | Chronic damages to the airways and lungs (incl. cancer risk) as well as the central nervous system, allergic reaction, metal vapour fever |
Particles | Galvanized steel | Zinc oxide, chrome | Chronic damages to the airways and lungs (incl. cancer risk) as well as the central nervous system, allergic reaction, metal vapour fever |
Particles | Anti-rust steel | Chrome hexavalent, nickel |
Chronic damages to the airways and lungs (incl. cancer risk) as well as the central nervous system, allergic reaction, metal vapour fever |
>> to 1. Welding fumes - What are they?
>> to 3. How large are the individual particles in welding fumes?
>> to 4. Physical effects by absorbing the pollutants of welding-fume
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