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Early diagenetic processes aspects controlling the mobility of dissolved trace metals in three riverine sediment columns.
Sci Total Environ. 2008 Dec 15; 407(1):447-59.ST

Abstract

The behaviour of Mn, Fe, Co, Zn, Cd, Pb and Ni has been studied during early diagenesis in three different riverine sediments (Spierre, Lys and Sheldt). For that purpose (1) pore waters were extracted from sediment cores by centrifugation under nitrogen and further analyzed for the determination of total dissolved metal concentrations and (2) DET and DGT probes have been deployed in situ for the determination of high resolution profiles of labile and total dissolved metal concentrations. Furthermore, sulfidization processes have been examined; they revealed a production of pyrite near the water-sediment interface at Helkijn and Wervik sampling sites, probably due to a partial re-oxidation of reduced sulphur species. In Spierre sediments, where Eh values are the most negative, pyrite production should be mainly due to strict anaerobic processes. Concentrations of AVS in Spierre sediments are also very high and result in low TI values and low trace metal concentrations in the pore waters. Otherwise, in Wervik sediments, the low pH values combined to a TI value close to 0 results in the highest observed dissolved trace metal levels. DOS remains low at the three sites, since it does not exceed 0.4. In Wervik and Helkijn, the limitation is probably due to low sedimentary inputs of sulphate. In Spierre, sulphate is never exhausted in the pore water, suggesting a limitation of the DOS by a lack of bio-degradable organic matter. Values of Cd, Cu and Pb DGT concentrations remain low in pore waters whatever the site, due to their strong affinity with the reduced sulphur pool. It has also been demonstrated that the labile fractions of Pb and Cd are the lowest and do not exceed 0.5, while Co and Ni are the most available metals.

Authors+Show Affiliations

Université Lille 1 (USTL), Laboratoire Géosystèmes (UMR-CNRS 8157), France.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18834616

Citation

Lesven, L, et al. "Early Diagenetic Processes Aspects Controlling the Mobility of Dissolved Trace Metals in Three Riverine Sediment Columns." The Science of the Total Environment, vol. 407, no. 1, 2008, pp. 447-59.
Lesven L, Gao Y, Billon G, et al. Early diagenetic processes aspects controlling the mobility of dissolved trace metals in three riverine sediment columns. Sci Total Environ. 2008;407(1):447-59.
Lesven, L., Gao, Y., Billon, G., Leermakers, M., Ouddane, B., Fischer, J. C., & Baeyens, W. (2008). Early diagenetic processes aspects controlling the mobility of dissolved trace metals in three riverine sediment columns. The Science of the Total Environment, 407(1), 447-59. https://doi.org/10.1016/j.scitotenv.2008.08.033
Lesven L, et al. Early Diagenetic Processes Aspects Controlling the Mobility of Dissolved Trace Metals in Three Riverine Sediment Columns. Sci Total Environ. 2008 Dec 15;407(1):447-59. PubMed PMID: 18834616.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Early diagenetic processes aspects controlling the mobility of dissolved trace metals in three riverine sediment columns. AU - Lesven,L, AU - Gao,Y, AU - Billon,G, AU - Leermakers,M, AU - Ouddane,B, AU - Fischer,J-C, AU - Baeyens,W, Y1 - 2008/10/01/ PY - 2008/05/23/received PY - 2008/08/08/revised PY - 2008/08/11/accepted PY - 2008/10/7/pubmed PY - 2009/1/27/medline PY - 2008/10/7/entrez SP - 447 EP - 59 JF - The Science of the total environment JO - Sci Total Environ VL - 407 IS - 1 N2 - The behaviour of Mn, Fe, Co, Zn, Cd, Pb and Ni has been studied during early diagenesis in three different riverine sediments (Spierre, Lys and Sheldt). For that purpose (1) pore waters were extracted from sediment cores by centrifugation under nitrogen and further analyzed for the determination of total dissolved metal concentrations and (2) DET and DGT probes have been deployed in situ for the determination of high resolution profiles of labile and total dissolved metal concentrations. Furthermore, sulfidization processes have been examined; they revealed a production of pyrite near the water-sediment interface at Helkijn and Wervik sampling sites, probably due to a partial re-oxidation of reduced sulphur species. In Spierre sediments, where Eh values are the most negative, pyrite production should be mainly due to strict anaerobic processes. Concentrations of AVS in Spierre sediments are also very high and result in low TI values and low trace metal concentrations in the pore waters. Otherwise, in Wervik sediments, the low pH values combined to a TI value close to 0 results in the highest observed dissolved trace metal levels. DOS remains low at the three sites, since it does not exceed 0.4. In Wervik and Helkijn, the limitation is probably due to low sedimentary inputs of sulphate. In Spierre, sulphate is never exhausted in the pore water, suggesting a limitation of the DOS by a lack of bio-degradable organic matter. Values of Cd, Cu and Pb DGT concentrations remain low in pore waters whatever the site, due to their strong affinity with the reduced sulphur pool. It has also been demonstrated that the labile fractions of Pb and Cd are the lowest and do not exceed 0.5, while Co and Ni are the most available metals. SN - 0048-9697 UR - https://www.unboundmedicine.com/medline/citation/18834616/Early_diagenetic_processes_aspects_controlling_the_mobility_of_dissolved_trace_metals_in_three_riverine_sediment_columns_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(08)00836-X DB - PRIME DP - Unbound Medicine ER -