Ecotoxicological Assessment of Sediment Samples Impacted by Wastewater Treatment Plant Effluents Transporting Contaminants of Emerging Concern.

ABSTRACT: Wastewater treatment plant (WWTP) effluents can be important sources of contaminants of emerging concern (CEC) for riverine ecosystems, with some accumulation in sediments. This study investigated the ecotoxicological effects of sediment samples collected near three WWTPs. Sediment elutriates, simulating resuspension conditions, and whole sediment samples were tested. Results showed that sediments were toxic to some organisms and beneficial to others. Elutriates from one site significantly reduced luminescence in the bacterium Aliivibrio fischeri, though this was not consistently linked to sediment contaminant levels. Significant noxious effects of elutriates were recorded for the macrophyte Lemma minor (yield reductions up to 48%) and the microalgae Raphidocelis subcapitata (yield reducti

SUBMITTER: Silva C 

PROVIDER: S-EPMC12387254 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature