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Characterizing Shipyard Welding Emissions and Associated Control Options (The National Shipbuilding Research Program)
NATIONAL STEEL AND SHIPBUILDING CO SAN DIEGO CA
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This report was funded as an addendum sub-project under the NSRP Project entitled Air Toxics Emissions Evaluations N-3-93. The Air Toxics Emissions Project had two primary objectives I identify and quantify regulated toxic air pollutants emitted from shipyard operations and II develop a database and analyze cost effective air toxic control strategies. This sub-project focuses on collection, filtration, and emission factors for potentially toxic welding emission. Potentially toxic welding emissions have come under recent scrutiny with EPA regulations and regulatory agencies. With the signing of the Clean Air Act Amendments CAAA of 1990, shipyards face some of the most significant regulatory legislation ever enacted. Title III regulates hazardous air pollutants HAPs and poses the greatest cost and technical challenge for compliance. Title III requirements will be imposed equally on each air quality area. Under Title V, most shipyards will be required to obtain federally enforceable operating permits that could limit shipyard operations and increasingly regulate emissions. Therefore, it is extremely important that shipyards understand the constraints and opportunities available for welding emission reductions, collection, and filtration when addressing the CAAA of 1990.
APPROVED FOR PUBLIC RELEASE