Release of chemicals into the environment / Stephen L. Brown and David C. Bomberger -- Fate of chemicals in aquatic systems : process models and computer codes / Lawrence A. Burns -- Soil and groundwater fate modeling / Marcos Bonazountas -- Modeling of human exposure to airborne toxic materials / G.E. Anderson -- The role of multimedia fate models in chemical risk assessment / Alan Eschenroeder -- Partition models for equilibrium distribution of chemicals in environmental compartments / P.J. McCall, R.L. Swann, and D.A. Laskowski -- A new mathematical modeling system / R.C. Johanson -- Model predictions vs. field observations : the model validation/testing process / Anthony S. Donigian, Jr. -- Application of fugacity models to the estimation of chemical distribution and persistence in the environment / Donald Mackay, Sally Paterson, and Michael Joy -- Environmental fate and transport at the terrestrial-atmospheric interface / David C. Bomberger, Julia L. Gwinn, William R. Mabey, Daniel Tusé, and Tsong Wen Chou -- Interactions between dissolved humic and fulvic acids and pollutants in aquatic environments / Charles W. Carter and I.H. Suffet -- A comparative study of the relationships between the mobility of alachlor, butylate, and metolachlor in soil and their physicochemical properties / C.J. Spillner, V.M. Thomas, D.G. Takahashi, and H.B. Scher -- Mathematical modeling application to environmental risk assessments / R.C. Honeycutt and L.G. Ballantine -- Application of the preliminary pollutant limit value (PPLV) environmental risk assessment approach to selected land uses / David H. Rosenblatt, Mitchell J. Small, and Robert J. Kainz -- Human exposure and health risk assessments using outputs of environmental fate models / J.R. Fiksel and K.M. Scow.