${session.getAttribute("locale")} 5 Organophosphorus flame retardants in surface and effluent water samples from the Vaal River catchment, South Africa: Levels and risk to aquatic life. 80%) was observed for six of the seven OPFRs with tris-(1, 3- dichloro-propyl)-phosphate (TDCPP) detection frequency being the lowest at 17%. Assessment of risk to aquatic organisms using risk quotients based on measured environmental concentrations (MEC) and predicted no-effect concentrations (PNEC) ranged from no significant risk (for algae, daphnia and fish) to low potential for adverse effects (for algae and fish).]]> Tue 27 Jul 2021 10:43:43 SAST ]]> Occurrence, distribution and ecological risk assessment of organophosphorus flame retardants and plasticizers in sediment samples along the Vaal River catchment, South Africa. 1) while TBOEP, TPhP, and TBP posed medium risk (0.1 < HQ < 1) with the remainder posing negligible risk (HQ < 0.01). The data obtained in this study provides valuable infor- mation on the occurrence and risks of the investigated OPFRs within Vaal River.]]> Tue 27 Jul 2021 10:35:26 SAST ]]> Occurrence and distribution of tetrabromobisphenol A and its derivative in river sediments from Vaal River Catchment, South Africa. Tue 27 Jul 2021 10:00:08 SAST ]]> Distribution, exposure pathways, sources and toxicity of nonylphenol and nonylphenol ethoxylates in the environment. Mon 26 Jul 2021 07:56:36 SAST ]]> A review of sources, fate, levels, toxicity, exposure and transformations of organophosphorus flame-retardants and plasticizers in the environment. Fri 16 Oct 2020 10:49:39 SAST ]]>