Abstract:Investigation of the dynamics and toxicity of pollutants in natural sediments is hindered by the great complexity of their matrix. Given this difficulty, the objective of this paper was to recommend the formulation of sediments representative of tropical lotic environments, considering their use in ecotoxicological assays. Organic and inorganic fractions were used in different percentages, resulting in five sediment formulations with different grain size proportions (fine, medium and coarse sand, and clay). Me… Show more
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