Sediment Ecotoxicological Stats for the Evaluation of Surface Water Quality: the Ebro River Basin

by Rebecca Herrera

Roig et al. (2014) assess various sites along the Ebro river basin and collect information on each site’s ecotoxicological status. The data are then used to complement traditional means of evaluating surface water quality. The researchers compare the effectiveness and viability of different ecotoxicicty tests, otherwise known as bioassays, performed with freshwater sediments, and evaluated the relationship between ecological status, pollutant concentrations and pore water and sediment ecotoxicity to make recommendations to the European Water Framework Directive (WFD). Their findings showed a high correspondence of the ecotoxicological measurements to prior measurements of ecological status, especially when ecosystem disruption due to numerous stressors was observed. Continue reading