The water-sediment interface is a focal point in the study of the biogeochemical cycles of trace elements and nutrients in the aquatic environment, as it is the site of important processes involving the remineralisation of organic matter. The result of the biogeochemical processes taking place are benthic fluxes representative of the variation over time of the concentrations of solutes present in the water above the sediment and therefore of the mobility of contaminants. This result can be achieved through the use of benthic chambers positioned on the seabed, suitably built and equipped so that samples can be taken in completely undisturbed conditions.
