title: Health risk assessment linked to filling coastal quarries with treated dredged seaport sediments.
abstract: Dredged seaport sediments raise complex management problems since it is no longer possible to discharge them into the sea. Traditional waste treatments are poorly adapted for these materials in terms of absorbable volumes and cost. In this context, filling quarries with treated sediments appears interesting but its safety regarding human health must be demonstrated. To achieve this, a specific methodology for assessing health risks has been developed and tested on three seaport sediments. This methodology includes the development of a conceptual model of the global scenario studied and the definition of specific protocols for each of its major steps. The approach proposed includes in particular the use of metrological and experimental tools that are new in this context: (i) an experimental lysimeter for characterizing the deposit emissions, and (ii) a geological radar for identifying potential preferential pathways between the sediment deposit and the groundwater. The application of this approach on the three sediments tested for the scenario studied showed the absence of health risk associated with the consumption of groundwater for substances having a "threshold effect" (risk quotient <1), and an acceptable risk for substances having a "non-threshold effect", with the notable exception of arsenic (individual risk equal to 3.10(-6)).
authors.affiliation: Université de Lyon, ENTPE, UMR CNRS 5023, Laboratoire LEHNA, 2 rue Maurice Audin, 69518 Vaulx-en-Velin, France. Electronic address: yves.perrodin@entpe.fr.
authors.forename: Yves
authors.initials: Y
authors.lastname: Perrodin
authors.affiliation: Université de Lyon, ENTPE, UMR CNRS 5023, Laboratoire LEHNA, 2 rue Maurice Audin, 69518 Vaulx-en-Velin, France.
authors.forename: Gilles
authors.initials: G
authors.lastname: Donguy
authors.affiliation: Laboratoire de Qualité de l'Eau et de l'Environnement, Université Quisqueya, BP 796 Port-au-Prince, Haïti.
authors.forename: Evens
authors.initials: E
authors.lastname: Emmanuel
authors.affiliation: Université de Lyon, ENTPE, UMR CNRS 5023, Laboratoire LEHNA, 2 rue Maurice Audin, 69518 Vaulx-en-Velin, France.
authors.forename: Thierry
authors.initials: T
authors.lastname: Winiarski
mesh_terms: D003247:Conservation of Natural Resources; D004781:Environmental Exposure / Q000706:statistics & numerical data*; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D060587:Groundwater / Q000737:chemistry; D006801:Humans; D018570:Risk Assessment; D012767:Ships; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical
keywords: Health risk assessment; Pollutants; Quarries; Seaports; Sediments; Toxicity