risk assessment tool / external lead media / homogeneous media concentrations / environmental media / environmental media concentrations / environmental lead media / exposure media / heterogeneous media concentrations / media concentrations / individual environmental media / unintended and unexpected applications / software package / exposure media pathways / media ingestion rates / exterior lead-based paint / nonnutrient metal / food / /
MedicalCondition
chronic lead exposure / chronic exposure / /
Organization
EPA office of Air Quality Planning and Standards / EPA's Clean Air Science Advisory Committee / U.S. Environmental Protection Agency / Environmental Protection Agency / /
Position
IEUBK model / as have all internal lead sources / /
February 1994 Publication # [removed]EPA 540-R[removed]BEFORE YOU START 1.1 BACKGROUND: PURPOSE AND DEVELOPMENT OF THE