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Total Fume Emissions And Emission Factors Applicable To Gas Metal Arc Welding, Nayara De Souza
Total Fume Emissions And Emission Factors Applicable To Gas Metal Arc Welding, Nayara De Souza
University of New Orleans Theses and Dissertations
Welding is a common industrial practice that has the potential to emit air pollutants. Emission factors are useful indicators to help in the understanding of the extent of pollution from a process and managing them to reduce or minimize health impacts. The objective of this thesis is to determine emission factors applicable to the gas metal arc welding (GMAW), under varying current and voltage conditions. The most used base metals and an electrode for the shipbuilding industry were considered. A weld fume chamber was used to achieve the project goals along with standard sampling and analytical procedures. Three test runs …
Evaluation Of Total Fume And Heavy Metal Emission Factors Applicable To Gas Metal Arc Welding, Abhinay Jilla
Evaluation Of Total Fume And Heavy Metal Emission Factors Applicable To Gas Metal Arc Welding, Abhinay Jilla
University of New Orleans Theses and Dissertations
Welding is a metal joining process widely used in many manufacturing facilities around the world. It involves the process of heating the base and filler metals to a high temperature that leads to the formation of fumes. Welding emissions consist of gaseous pollutants and micron and sub-micron particles consisting of different heavy metals. Health risks associated with exposures to weld fume is well recognized in the literature. This research evaluates emissions and emission factors applicable to gas metal arc welding (GMAW) on AH 36 (mild steel) and 316 L (stainless steel). Emission factors evaluated consisted, total fume, chromium, cobalt, lead, …