Original scientific paper

https://doi.org/10.5562/cca3163

Evaluation of Discrete and Passive Sampling (Diffusive Gradients in Thin-films – DGT) Approach for the Assessment of Trace Metal Dynamics in Marine Waters – a Case Study in a Small Harbor

Ana-Marija Cindrić ; Ruđer Bošković Institute, Center for Marine and Environmental Research, Bijenička 54, Zagreb, Croatia
Neven Cukrov ; Ruđer Bošković Institute, Center for Marine and Environmental Research, Bijenička 54, Zagreb, Croatia
Gaël Durrieu ; Université de Toulon, PROTEE, EA 3819, 83957 La Garde, France
Cédric Garnier ; Université de Toulon, PROTEE, EA 3819, 83957 La Garde, France
Ivanka Pižeta ; Ruđer Bošković Institute, Center for Marine and Environmental Research, Bijenička 54, Zagreb, Croatia
Dario Omanović orcid.org/0000-0001-5961-0485 ; Ruđer Bošković Institute, Center for Marine and Environmental Research, Bijenička 54, Zagreb, Croatia

Abstract

Two complementary approaches, based on discrete and passive samplings (diffusive gradients in thin-films - DGT), supported by the speciation modeling, were evaluated for the assessment of distribution and operational speciation of trace metals (Zn, Cd, Pb, Cu, Ni and Co) within a small marine harbor (Rijeka, Croatia). Concentrations of dissolved metals were relatively low and comparable to, or slightly above those found in coastal Adriatic region. Compared to higher variability of dissolved metal concentrations due to the discrete sampling, smoother temporal distribution was recorded for DGT-labile metals. The percentages of DGT-labile metal concentrations, which reflect their affinity to organic matter, varied among metals with the following order: Cu
This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

chemical modeling; diffusive gradients in thin-films (DGT); speciation; trace metals

Hrčak ID:

184923

URI

https://hrcak.srce.hr/184923

Publication date:

3.7.2017.

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