Influence of dams on sediment continuity: A study case of a natural metallic contamination

The Science of the Total Environment
Franck FrémionAlexandra Courtin-Nomade

Abstract

Sediments play an important role on the quality of aquatic ecosystems, notably in the reservoir areas where they can either be a sink or a source of contaminants, depending on the management and hydrological conditions. The physicochemical properties of 25 surface sediments samples of a reservoir catchment (Vaussaire, Cantal, France) were studied. Results show a strong influence of dam presence, notably on the grain size and organic matter (OM) contents. The concentrations of trace metals and metalloids (As, Cd, Cr, Cu, Ni, Pb and Zn) were also measured and compared with worldwide reservoir concentrations and international sediment quality guideline levels in order to assess the intensity of the metallic contamination. Cr and Ni are the trace elements presenting the significantly highest values at the catchment scale. Enrichment Factors (EF), calculated using both local and national backgrounds, show that metals have mainly a natural origin, explaining especially the Cr and Ni values, linked with the composition of parental rocks. Unexpectedly, all the observed metal concentrations are lower in the reservoir than upstream and downstream, which might be related to the high fresh OM inputs in the reservoir, diluting the global me...Continue Reading

References

Oct 3, 1999·The Science of the Total Environment·P Avila-PérezC Díaz-Delgado
Jan 11, 2003·Environmental Science & Technology·Mark G CantwellDana R Kester
Jun 16, 2004·Environment International·Jacqueline Eggleton, Kevin V Thomas
Oct 12, 2007·Archives of Environmental Contamination and Toxicology·Alessandra AccorneroLoredana Manfra
Sep 13, 2008·The Science of the Total Environment·G Du LaingF M G Tack
Nov 15, 2008·The Science of the Total Environment·Jérôme ViersJérôme Gaillardet
Mar 20, 2010·Environmental Monitoring and Assessment·Guang Hong WuFang Ting Cao
Dec 4, 2012·Bulletin of Environmental Contamination and Toxicology·Małgorzata Wojtkowska
Jan 15, 2013·Environmental Monitoring and Assessment·Gökben Başaran KankılıçYusuf Kağan Kadıoğlu
Feb 25, 2014·The Science of the Total Environment·Qiang TangXinbao Zhang
Feb 11, 2015·Environmental Science and Pollution Research International·Maria Virgínia Alves MartinsFernando Rocha

❮ Previous
Next ❯

Citations

Nov 2, 2017·Environmental Science and Pollution Research International·Ana E TufoGustavo Curutchet
Jun 22, 2019·Environmental Science and Pollution Research International·Imali Kaushalya HerathRohana Chandrajith
Dec 5, 2019·Environmental Science and Pollution Research International·Susan PraiseToru Watanabe
Aug 30, 2020·Environmental Science and Pollution Research International·Qian-Li MaXue-Min Zhao
Dec 25, 2019·Environmental Science and Pollution Research International·Anne RapinVéronique Deluchat
Oct 21, 2017·Archives of Environmental Contamination and Toxicology·Yueqiu ZhangLei Chen
Jul 1, 2020·Environmental Geochemistry and Health·Guowei ChengWei Gao
Feb 19, 2017·Environmental Science and Pollution Research International·Cassiano Lazarotto RamboJacir Dal Magro
Mar 1, 2019·Environmental Monitoring and Assessment·Mohammed SaddikAbdelhadi Makan
Jan 10, 2021·The Science of the Total Environment·M N MirandaR Maia
Dec 16, 2020·International Journal of Environmental Research and Public Health·Tenzin TseringMahmoud S M Abdel Wahed
Feb 19, 2021·Journal of Environmental Management·Desneiges MurrayJanice Brahney

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.