HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation

Welcome to the Resources Reservoirs and Hydrosystems Group collection

Number of resources

368

 

Number of fulltexts

Chargement de la page

 

Twitter

Chargement de la page

 

Keywords

Chargement de la page

 

Latest submissions in HAL !

[hal-02556187] Flux estimation, temporal trends and source determination of trace metal contamination in a major tributary of the Seine estuary, France

(20/05/2022)  
Anthropogenic impacts on rivers have increased significantly over the past ~150 years, particularly at the beginning of the industrial revolution. Among other signs, this impact is manifested through the addition of trace metals and metalloid elements to rivers. The Eure River watershed in France covers an area of 6017 km2 and is a major tributary of the Seine estuary. It is not exempt from anthropogenic pressures and has been exposed to significant metal discharges over the last 80 years. The average concentrations of metals (i.e., Cr, Co, Ni, Cu, Zn, Ag, Cd, Sb, and Pb), in suspended particulate matter currently transported by the river are high compared to the local geochemical background. Moreover, the lack of correlation between concentration variations and the hydrosedimentary behaviour of the Eure River suggests that the river is currently under anthropogenic pressure. Analysis of sediment cores indicate strong As contamination during the 1940s, Cr, Co, Ni, Cu, Zn, Ag, and Cd contamination during the 1960s and 1970s, and Sb and Pb contamination during the 1990s and 2000s. The enrichment factors calculation suggests that total anthropogenic pressure within the Eure River watershed since the 1940s was comparable or higher than those in many other French watersheds. An estimation of particulate metal flux in 2017 shows that the Eure River watershed contributed to 7, 8, 9, 10 and 16% of total inputs to the Seine estuary in Cr, Cu, Zn, Cd and Pb respectively. Moreover, the estimation of past theoretical flux indicates that during the 1990s the Eure River watershed was the main contributor of particulate Pb to the estuary. The use of Pb isotopes has revealed that this contamination was primarily of industrial origin.

[hal-03663812] Neogene Paleostress and Structural Evolution of Trinidad: Rotation, Strain Partitioning, and Strike-slip Reactivation of an Obliquely Colliding Thrust Belt

(13/05/2022)  

[hal-03662614] Controls and timing of Cenomanian-Turonian organic enrichment andrelationship to the OAE2 event in Morocco, North Africa

(10/05/2022)  

 

Contact

Catherine Beaussier
Tél. (+33) 4 95 04 41 43
catherine.beaussier@osupytheas.fr

Archive créée et administrée sur la plateforme HAL du CCSD
 

Legal aspects : Contributor obligations


Dépôt de fichier : que faire en fonction de la version que vous déposez

Sherpa/Romeo

 

Domain

 

 

Evolution of the submissions

Chargement de la page

 

 

 

 

INTERNATIONAL COLLABORATIONS