Application of a multidisciplinary and integrative weight-of-evidence approach to a 1-year monitoring survey of the Seine River.
Quality assessment of environments under high anthropogenic pressures such as the Seine Basin, subjected to complex and chronic inputs, can only be based on combined chemical and biological analyses. The present study integrates and summarizes a multidisciplinary dataset acquired throughout a 1-year monitoring survey conducted at three workshop sites along the Seine River (PIREN-Seine program), upstream and downstream of the Paris conurbation, during four seasonal campaigns using a weight-of-evidence approach. Sediment and water column chemical analyses, bioaccumulation levels and biomarker responses in caged gammarids, and laboratory (eco)toxicity bioassays were integrated into four lines of evidence (LOEs). Results from each LOE clearly reflected an anthropogenic gradient, with contamination levels and biological effects increasing from upstream to downstream of Paris, in good agreement with the variations in the structure and composition of bacterial communities from the water column. Based on annual average data, the global hazard was summarized as "moderate" at the upstream station and as "major" at the two downstream ones. Seasonal variability was also highlighted; the winter campaign was least impacted. The model was notably improved using previously established reference and threshold values from national-scale studies. It undoubtedly represents a powerful practical tool to facilitate the decision-making processes of environment managers within the framework of an environmental risk assessment strategy.
UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France. iris.barjhoux@univ-reims.fr.
Iris
I
Barjhoux
UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France.|AgroParisTech, 75005, Paris, France.
Lise C
LC
Fechner
UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France.
Jérémie D
JD
Lebrun
Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium.
Adriana
A
Anzil
UMR 8212 CNRS CEA UVSQ Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Institut Pierre Simon Laplace (IPSL), Gif-sur-Yvette, France.
Sophie
S
Ayrault
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France.
Hélène
H
Budzinski
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France.
Jérôme
J
Cachot
UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France.
Laetitia
L
Charron
UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France.
Arnaud
A
Chaumot
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France.
Christelle
C
Clérandeau
UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France.
Odile
O
Dedourge-Geffard
UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France.|AgroParisTech, 75005, Paris, France.
Juliette
J
Faburé
UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France.
Adeline
A
François
UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France.
Olivier
O
Geffard
Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium.
Isabelle
I
George
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France.
Pierre
P
Labadie
Ecologie Systématique Evolution, University Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, France.
Yves
Y
Lévi
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France.
Gabriel
G
Munoz
UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France.
Patrice
P
Noury
Ecologie Systématique Evolution, University Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, France.
Lucie
L
Oziol
UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France.
Hervé
H
Quéau
Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium.
Pierre
P
Servais
UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France.
Emmanuelle
E
Uher
UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France.
Nastassia
N
Urien
UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France.
Alain
A
Geffard
D000110:Acetylcholinesterase / Q000378:metabolism; D033304:Amphipoda / Q000187:drug effects / Q000502:physiology; D000818:Animals; D017753:Ecosystem; D054750:Ecotoxicology / Q000379:methods*; D004784:Environmental Monitoring / Q000379:methods*; D005260:Female; D005602:France; D019015:Geologic Sediments / Q000032:analysis; D008297:Male; D010297:Paris; D012098:Reproduction / Q000187:drug effects; D045483:Rivers / Q000737:chemistry; D012621:Seasons; D011795:Surveys and Questionnaires; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000633:toxicity; D060753:Water Quality
D014874:Water Pollutants, Chemical; D000110:Acetylcholinesterase
Bacterial community; Bioassays; Bioavailability; Biomarkers; Environmental risk; Pollutants; Seine River; Weight of evidence