title: Temporal trends of persistent organic pollutants in dated sediment cores: Chemical fingerprinting of the anthropogenic impacts in the Seine River basin, Paris.
abstract: Persistent organic pollutants (POPs) were extensively produced and used throughout the last century. In the early 1980s, a rising concern on the environmental impact of these chemicals has led to the establishment of regulations and changes of use including bans. Long term monitoring of the environmental impacts of these emissions and regulations is a challenge because regular monitoring was not mandatory at the beginning of the first emissions. Moreover, the analytical methods have been strongly improved over the decades. To overcome the lack of monitoring and accurate data, sediment cores are powerful tools to construct contamination records. In this study, a high resolution record was constructed for four POPs families (13 polycyclic aromatic hydrocarbons (PAHs), 15 polychlorinated biphenyls (PCBs), 3 alkylphenols (APs) and 8 polybromodiphenyl ethers (PBDEs)) to establish their historical trends in a long-term urbanized and industrialized environment: the Seine River basin, France. These specific families were selected because they had different sources, uses and histories. The results showed concentrations up to 90 mg/kg for ∑PAHs, 2.3mg/kg for ∑PCB, 1.2mg/kg for ∑APs and 0.06 mg/kg for ∑PBDE. The vertical distribution profiles were different from one family to another and presented a good correlation with uses (e.g. transition from coal to natural gas for PAHs), and regulation implementation (e.g., AP ban after "OSPAR Convention" in 1992). The study of compounds distribution provided original information on sources, e.g. temporal variations in PAH uses. This study demonstrates the usefulness and accuracy of sedimentary archives in floodplain to assess the fate of POPs through time in continental hydrosystems. These first results give a comprehensive overview of the contamination in the Seine River basin downstream of Paris Megacity. They were in good agreement with previous studies dedicated to European areas and highlighted specificities of this basin that were not reported before.
authors.affiliation: Université Paris-Est, LEESU, UMR MA 102 - AgroParisTech, Créteil 94010, France; Université de Lorraine, CNRS, CREGU, GeoRessources Laboratory, Vandœuvre-lès-Nancy 54506, France. Electronic address: catherine.lorgeoux@univ-lorraine.fr.
authors.forename: C
authors.initials: C
authors.lastname: Lorgeoux
authors.affiliation: Université Paris-Est, LEESU, UMR MA 102 - AgroParisTech, Créteil 94010, France.
authors.forename: R
authors.initials: R
authors.lastname: Moilleron
authors.affiliation: Université Paris-Est, LEESU, UMR MA 102 - AgroParisTech, Créteil 94010, France.
authors.forename: J
authors.initials: J
authors.lastname: Gasperi
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR 8212 CEA-CNRS-UVSQ, Gif-sur-Yvette 91198, France.
authors.forename: S
authors.initials: S
authors.lastname: Ayrault
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR 8212 CEA-CNRS-UVSQ, Gif-sur-Yvette 91198, France.
authors.forename: P
authors.initials: P
authors.lastname: Bonté
authors.affiliation: Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR 8212 CEA-CNRS-UVSQ, Gif-sur-Yvette 91198, France.
authors.forename: I
authors.initials: I
authors.lastname: Lefèvre
authors.affiliation: Université Paris-Est, LEESU, UMR MA 102 - AgroParisTech, Créteil 94010, France.
authors.forename: B
authors.initials: B
authors.lastname: Tassin
mesh_terms: D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D015386:Hazardous Substances; D010297:Paris; D011078:Polychlorinated Biphenyls / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D045483:Rivers / Q000737:chemistry*; D014507:Urbanization; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data*
chemical_list: D015386:Hazardous Substances; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls
keywords: Alkylphenols; Historical trends; Polybromodiphenyl ethers; Polychlorobiphenyls; Polycyclic aromatic hydrocarbons; Suspended particulate matter