The research presented is based on an experimental study of bioaccumulation of two mercury compounds (HgCl2 and CH3HgCl) by two species of rooted macrophytes (Elodea densa and Ludwigia natans). Contamination of the experimental model (water, natural sediment, and macrophytes) is carried out by introducing contaminants into the water column. The actions and interactions of four abiotic factors (temperature, pH, photoperiod, and light intensity) are studied by setting up a complete experimental design corresponding to 72 different experimental conditions. Results relate to the evolution of mercury concentrations in the water over 28 days' exposure, plant growth (weight and stem length), and quantification of total mercury bioaccumulation (concentration and content) in the whole plants.
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