PMID- 30235589 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20181002 LR - 20181004 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 646 DP - 2019 Jan 1 TI - Past and recent state of sediment contamination by persistent organic pollutants (POPs) in the Rhone River: Overview of ecotoxicological implications. PG - 1037-1046 LID - S0048-9697(18)32835-3 [pii] LID - 10.1016/j.scitotenv.2018.07.340 [doi] AB - Twenty-one sediment samples were taken from five dated sediment cores collected along the Rhone River from 2008 to 2011. A total of 17 polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), 7 polychlorinated biphenyls (PCBs), 8 polybrominated diphenyl ethers (PBDEs), 3 polybrominated biphenyls (PBBs), 3 hexabromocyclododecanes (HBCD) and 31 organochlorine pesticides (OCPs) were investigated to provide information on deposition dynamics in time and space, but also regarding the ecotoxicological risks associated with these contaminants. Median concentrations of total PBDEs are nine times lower than the levels of total PCBs along the entire studied stretch of the Rhone River. The results show that total PBDEs concentrations range from 0.06 to 239 mug.kg(-1) DW with a median value of 3.81 mug.kg(-1) DW and a maximum concentration measured in the years 2000s. These maximum concentrations are identical to those measured for total PCBs at the end of the 1990s, but show a different pattern of distribution. Abnormal dichlorodiphenyltrichloroethane (DDT) levels were also detected in the downstream section of the river, with a peak concentration of 147.5 mug.kg(-1) DW measured at the GEC site from 2005 onwards. Analyses of the enantiomeric fractions reveal a fresh input resulting from a technical formulation. Sediments from the core sampled at the most downstream site (GEC) are found to be highly toxic to organisms living nearby, particularly because of the total PCDD/Fs, DDE and DDT levels. In addition, based on available sediment quality guidelines, there may be a potential bioaccumulation risk for humans not only for these three compounds of concern but also for total PCBs and 7 out of the 8 analysed PBDEs. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Liber, Yohan AU - Liber Y AD - Univ Lyon, Universite Claude Bernard Lyon 1, CNRS, ENTPE, UMR5023 LEHNA, F-69518 Vaulx-en-Velin, France. FAU - Mourier, Brice AU - Mourier B AD - Univ Lyon, Universite Claude Bernard Lyon 1, CNRS, ENTPE, UMR5023 LEHNA, F-69518 Vaulx-en-Velin, France. Electronic address: brice.mourier@entpe.fr. FAU - Marchand, Philippe AU - Marchand P AD - LUNAM Universite, Oniris, Laboratoire d'Etude des Residus et Contaminants dans les Aliments (LABERCA), UMR INRA 1329, F-44307 Nantes, France. FAU - Bichon, Emmanuelle AU - Bichon E AD - LUNAM Universite, Oniris, Laboratoire d'Etude des Residus et Contaminants dans les Aliments (LABERCA), UMR INRA 1329, F-44307 Nantes, France. FAU - Perrodin, Yves AU - Perrodin Y AD - Univ Lyon, Universite Claude Bernard Lyon 1, CNRS, ENTPE, UMR5023 LEHNA, F-69518 Vaulx-en-Velin, France. FAU - Bedell, Jean-Philippe AU - Bedell JP AD - Univ Lyon, Universite Claude Bernard Lyon 1, CNRS, ENTPE, UMR5023 LEHNA, F-69518 Vaulx-en-Velin, France. LA - eng PT - Journal Article DEP - 20180725 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 OTO - NOTNLM OT - Brominated flame retardants OT - Organochlorine pesticides OT - Polychlorinated compounds OT - Rhone River OT - Sediment cores OT - Sediment quality guidelines EDAT- 2018/09/22 06:00 MHDA- 2018/09/22 06:01 CRDT- 2018/09/22 06:00 PHST- 2018/03/30 00:00 [received] PHST- 2018/07/19 00:00 [revised] PHST- 2018/07/24 00:00 [accepted] PHST- 2018/09/22 06:00 [entrez] PHST- 2018/09/22 06:00 [pubmed] PHST- 2018/09/22 06:01 [medline] AID - S0048-9697(18)32835-3 [pii] AID - 10.1016/j.scitotenv.2018.07.340 [doi] PST - ppublish SO - Sci Total Environ. 2019 Jan 1;646:1037-1046. doi: 10.1016/j.scitotenv.2018.07.340. Epub 2018 Jul 25.