"Organisation for Economic Co-operation and Development." . . "Organisation for Economic Co-operation and Development" . "Transportation Environmental aspects." . . "Environment." . . "Environment" . . . . . . . . . . "Report of the OECD/UNEP workshop on the use of multimedia models for estimating overall environmental persistence and long range transport in the context of PBTS/POPS assessment" . . . "Report of the OECD/UNEP Workshop on the Use of Multimedia Models for Estimating Overall Environmental Persistence and Long Range Transport in the Context of PBTS/POPS Assessment" . "This document contains the report from the OECD/UNEP Workshop on the Use of Multimedia Models for Estimating Overall Persistence and Long-range Transport in the Context of PBTs/POPs Assessment, held on 29-31 October 2001 in Ottawa, Canada, together with background papers, presentation summaries, and reports from the three subgroups." . .