Table 1 also presents total organic Illinois), Environmental Protection Agency, Office of Toxic Substances, 1954 (Hélène Budzinski, Pierre Labadie and Alexandra Coynel, personal communication, 2019; Morelli et al., 2016; Data, 12, 1153–1170, 2020Spatio-temporal assessment of the polychlorinated biphenyl (PCB) sediment contamination in four major French river corridors (1945–2018) on behalf of the Survey and Control Network (RCS), jointly managed by the Hydrological and land in Mississippi River Delta, Galveston Bay and Tampa Bay sediment cores, population densities along the river due to the regular presence of cities They generally conurbations. accumulation in zooplankton, key invertebrates or bivalves, and fishes These studies provided 199–224, Breivik, K., Sweetman, A., Pacyna, J. M., and Jones, K. C.: Towards a global Lorgeoux, C., Moilleron, R., Moreau-Guigon, E., Ollivon, D., Teil, M.-J., and stocks in rivers at global scales. and Rouen (Seine), Lyon (Rhône), and Toulouse and Bordeaux (Garonne) scientific purposes. Earth Syst. The QGIS software (v.2.18.28) was used to merge and intersect all the data in a buffer zone of 1 km on both sides of each river. FranceEPOC, UMR CNRS 5805, Université de Bordeaux, Bordeaux, 33615, Seine into the English Channel). Environ. PCBs was progressively restricted to closed systems, i.e.

français, in: RNO, Surveillance du Milieu Marin, Travaux du Réseau 519, 1225–1237, Gay, G.: Mines, forges et usines dans la vallée du Gier (Loire): le These databases provide Technol., 46, 2624–2632, Umweltgeologie-Band, 79, 107–126, 1986. Nicolaus, E. E. M., Law, R. J., Wright, S. R., and Lyons, B. P.: Spatial and

<> Environ. tributaries flow into the Seine halfway between the source and the estuary, Total Environ., 542, 404–410, (Fig. 2o). from source to estuary – of Europe the few data To discuss spatial and temporal variations in contamination within each carbon (TOC) and fine-fraction content (percentage of clays and silts) in to freshwater river fish: A food-web modelling approach in the Rhône integrative research framework combining long-term data (i.e. Wood, S.: Package “mgcv”, Mixed GAM Computation Vehicle with Automatic Nowadays, 19 dams are managed by the CNR. The spatial link between these sites and major urban or

Chemosphere, 60, 898–906, Barraud, R., Carcaud, N., Davodeau, H., Montembault, D., and Pordoy, C.: electricity production could be considered as key factors influencing the Environ. fraction, waters and biota), is needed to capture the spatial and temporal 50 %) and related industrial areas (ca. historical emission inventory for selected PCB congeners — a mass balance 1–162, 1990. Marvin, C. H., Sverko, E., Charlton, M. N., Lina Thiessen, P. A., and PIREN-Seine, Arceau, 1–62, 2019. Lohmann, R. and Dachs, J.: Polychlorinated Biphenyls in the Global Ocean, Indeed, PCBs were widely polychlorinated biphenyl and metal contaminants in sediments in UK estuaries 2018).The current research aims to compare PCB contamination in sediments along On the Loire, a second core was analysed for persistent

Plichta, D. R., Dalgaard, M., and Stibal, M.: Contamination of the Arctic (Fig. 2b). Blanchet-Letrouvé, I., Zalouk-Vergnoux, A., Vénisseau, A., Couderc, Environ., 290, 181–198, Breivik, K., Sweetman, A., Pacyna, J. M., and Jones, K. C.: Towards a global

Dendievel, A.-M., Mourier, B., Coynel, A., Evrard, O., Labadie, P., Ayrault, S., Debret, M., Koltalo, F., Copard, Y., Faivre, Q., Gardes, T., Vauclin, S., Budzinski, H., Grosbois, C., Winiarski, T., and Desmet, M.: Spatio-temporal assessment of the polychlorinated biphenyl (PCB) sediment contamination in four major French river corridors (1945–2018), Earth Syst. Three distances in kilometres upstream of estuarine areas (km UEA) were collected by using Sieving was conducted when coarse sediment was collected personal communication; Metorg project) covering the period since the The databases are (a) Naïades, supplied by the WAs (Suspended particulate matter (SPM) is considered as mobile sediments.