| Agent Name |
Welding fumes (not otherwise specified) |
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| Major Category |
Other Uses |
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| Category |
Pyrolysis Products |
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| Sources/Uses |
The 3 main types of arc welding are Tungsten Inert Gas (TIG), Metal Inert Gas (MIG), and Manual Metal Arc (MMA) or stick welding. The welding fume is mainly determined by the composition of the filler metal, not the composition of the parent metal. Of the metals in welding fume, hexavalent chromium and manganese are of greatest concern. Toxic gases may include carbon monoxide, nitrogen oxide, ozone, and phosgene. [Hendrick, p. 467-79] |
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| Comments |
See the Job Tasks: Arc weld aluminum, Arc weld stainless steel, Braze using cadmium-based solder, Decompose chlorinated solvents by UV light or heat from welding, Gas or arc weld on galvanized metal, Gas weld or cut in a confined space, Heat or machine chromium alloys, Heat or machine cobalt alloys, Heat or machine manganese alloys, Heat, machine, or spray lead products, Machine or weld on cadmium-alloyed or cadmium-plated steel, Use manganese-containing welding rods, Weld mild steel, Weld on metal painted with chlorinated polyester paint, Weld or machine on beryllium-containing alloys. |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
Not evaluated |
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| Explanatory Notes |
NIOSH REL = lowest feasible conc.; |
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| Adverse Effects |
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| Chronic Bronchitis |
Yes |
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| IARC Carcinogen |
Possible Carcinogen |
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| Links to Other NLM Databases |
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