摘要：Graphical abstractPCBs Exchange between Organism and Environment (New Design).Display OmittedHighlights•The extended model adopts a population-based design. Treat each organism as a compartment and estimate the PCB mass based on biota population.•Establish PCB exchange routes between organisms and the environment, especially the feedback processes from the organism to the environment.•Predict PCB distribution under both the steady state and the dynamic scenarios.•Yielding a more realistic simulation among organisms and the environment.AbstractA population-based bioaccumulation fugacity model is designed to simulate the continuous and dynamic transport of polychlorinated bisphenols (PCBs) in an aquatic environment. The extended model is developed based on a previous fugacity model by Campfens and Mackay. The new model identifies each biotic species as a populated compartment and constructs all the exchange routes between organisms and the environment based on known biological processes. The population-based design could assist to uncover the impacts of organism activities on PCB fate and transport in the ecosystem. The new model utilizes the PCB loading as inputs and calculates the PCB distribution in each biotic and environmental compartment simultaneously.
关键词：Fugacity capacity variation;Population estimation;Mortality rate;Energy flows;Multicompartment box model
