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Can I read Welder Exposure to NO and NO2 during Argon-Shielded Arc Welding on Aluminum Alloys on EtoBox?
Welder Exposure to NO and NO2 during Argon-Shielded Arc Welding on Aluminum Alloys by Thomas Neil McManus; Assed N. Haddad is a Environmental Science article available to read on EtoBox.
What is Welder Exposure to NO and NO2 during Argon-Shielded Arc Welding on Aluminum Alloys about?
This work was performed to assess welder exposure to NO and NO 2 and to assess the importance of these gases in the hierarchy of contaminants produced during welding (GMAW [MIG welding], GTAW [TIG welding], plasma cutting) on aluminum alloys. Methods: Personal air samples in the breathing zone were collected on welders using a small, person-portable, direct-reading, datalogging instrument containing an electrochemical sensor rated for NO 2 and colorimetric detector tubes rated for NO to assess exposure during welding. Results: Exceedance of the Threshold Limit Value -Time-Weighted Average (TLV-TWA) of 0.2 ppm (parts per million) averaged over 8 hours for NO 2 and the Ceiling Limit of 1 ppm used by some jurisdictions was likely during GTAW (TIG welding) in poorly ventilated conditions. Exceedance of these limits was unlikely during plasma arc cutting and GMAW (MIG welding). Exceedance of the TLV-TWA of 25 ppm for NO was unlikely to occur. Conclusion: Exceedance of the TLV-TWA of 0.2 ppm and the Ceiling Limit of 1 ppm mandated in some jurisdictions for exposure to NO 2 during argon-shielded GTAW on aluminium alloys is likely to occur in the shipyard environment examined during this s
Who reads Welder Exposure to NO and NO2 during Argon-Shielded Arc Welding on Aluminum Alloys?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Thomas Neil McManus; Assed N. Haddad
- Publisher
- Springer Science and Business Media LLC
- Published
- 2018
- Language
- EN
- Field
- Environmental Science (Physical Sciences)