Bioaccumulation: An experimental approach
Abstract
In this paper we present lab activities for teaching bioaccumulation, an environmental problem that needs immediate attention. We present activities that simulate the phenomenon, using inexpensive materials, to study hypothetical aquatic ecosystems and determine the concentration of the toxic pollutant at different trophic levels. The activities include a demonstration experiment and two lab projects to model the phenomenon, using the classic example of DDT. We describe the activities and their teaching objectives. The simulations and the procedures that students will undertake are expected to contribute in an illustrative way to a deeper understanding of the phenomenon and help clarify details related to the assumptions of the textbook. These activities support teaching and do not require special equipment.
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