The final three chapters of the report present a series of calculation procedures for bioconcentrat ion and biomagni f icat ion and laboratory methods for the investigation of bioconcentration phenomena. A comprehensive bibliography of approximately 120 references, as well as an appendix of selected relevant physicochemical properties for priority chemicals and bioconcentration data are also reported. The information provided in this report establishes a good data base, to assist the Ontario Ministry of the Environment in setting effluent limits based on receiving water quality. These effluent limits will, in turn, be compared with technology based effluent limits, derived through the MISA process. Such comparisons will greatly enhance the Ontario Ministry of the Environment's ability to recommend/evaluate load reductions achieved through the MISA program. And, as well, provide guidance and rationale for future policy decisions. Research and monitoring activities on the Great Lakes will, based on the information in this report, endeavour to incorporate design strategies, which more efficiently and reliably obtains data critical to those models addressing Food Chain Bioaccumulat ion dynamics