title: On biogeochemistry and water quality of river canals in Northern France subject to daily sediment resuspension due to intense boating activities.
abstract: In Northern France, channelized rivers facilitate greatly the waterway transport that should still increase in the coming years to replace as much as possible the road traffic, considered as a heavier source of pollution. These rivers are now subjected to the good potential status objectives required by the Water Framework Directive. The impact of the recurrent resuspension by the current boat traffic of polluted sediments (due to strong historical pollution) on the water quality is the main concern of this work. Our study reveals that the navigation seems to play a limited role on the enrichment of the water columns by dissolved metals and phosphorus, as well as on the oxygenation of surface waters. Conversely, the cycling of the phytoplankton over the year appears to partly control the physico-chemical and chemical evolutions of the overlying waters.
authors.affiliation: Laboratory LASIR (UMR 8516 CNRS - Université Lille 1), Cité Scientifique, 59655 Villeneuve d'Ascq, France.
authors.forename: E
authors.initials: E
authors.lastname: Prygiel
authors.affiliation: Laboratory LASIR (UMR 8516 CNRS - Université Lille 1), Cité Scientifique, 59655 Villeneuve d'Ascq, France.
authors.forename: P-J
authors.initials: PJ
authors.lastname: Superville
authors.affiliation: Laboratory LASIR (UMR 8516 CNRS - Université Lille 1), Cité Scientifique, 59655 Villeneuve d'Ascq, France.
authors.forename: D
authors.initials: D
authors.lastname: Dumoulin
authors.affiliation: Laboratory LOG, (UMR 8187 CNRS), Station Marine de Wimereux, Université Lille 1, 28 av. Foch, 62930 Wimereux, France.
authors.forename: F
authors.initials: F
authors.lastname: Lizon
authors.affiliation: Laboratory LASIR (UMR 8516 CNRS - Université Lille 1), Cité Scientifique, 59655 Villeneuve d'Ascq, France; Agence de l'Eau Artois-Picardie, 200 rue Marceline, 59200 Douai, France.
authors.forename: J
authors.initials: J
authors.lastname: Prygiel
authors.affiliation: Laboratory LASIR (UMR 8516 CNRS - Université Lille 1), Cité Scientifique, 59655 Villeneuve d'Ascq, France. Electronic address: Gabriel.billon@univ-lille1.fr.
authors.forename: G
authors.initials: G
authors.lastname: Billon
mesh_terms: D004777:Environment; D004784:Environmental Monitoring; D005602:France; D019015:Geologic Sediments / Q000032:analysis*; D008670:Metals / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D010839:Phytoplankton / Q000254:growth & development; D045483:Rivers / Q000737:chemistry*; D012767:Ships; D014873:Water Pollutants / Q000032:analysis*; D060753:Water Quality
chemical_list: D008670:Metals; D014873:Water Pollutants; D010758:Phosphorus
keywords: Boat traffic; Phosphorus; Resuspension; River canal; Sediment; Trace metal; Water framework directive