Characterizing Site-specific SOurce Emissions For EPA's Risk Assessment Tool For the Metal FInishing Industry

摘要

EPA's risk assessment tool for the metal finishing industry is described in a compainon paper to this one: Lorber & co-authors, A Risk Assessment Tool for the Metal Finishing Industry (included in this proceedings). The most challenging aspect to producing this risk assessment tool is characterizing indoor and outdoor emissions of contaminants from metal finishing line processes. These emissions drive indoor worker exposures and outdoor nearby resident exposures. This tool contains default source e mission rates of 22 contaminants for 15 different line processes. This paper describes the line processes and generation of emission rates for these processes. The compantion paper shows how these default source characterizations fit into the risk assessment tool in general.