Mercury in the sediments of the Marano and Grado Lagoon (northern Adriatic Sea): Sources, distribution and speciation

Acquavita, Alessandro; Covelli, Stefano; Emili, Andrea; Berto, Daniela; Faganeli, Jadran; Giani, Michele; Horvat, Milena; Koron, Neža; Rampazzo, Federico

doi:10.1016/j.ecss.2012.02.012

Cited by 78 publications

(40 citation statements)

References 86 publications

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“…The model was set up in agreement with Melaku Canu et al (2015) using the three-year scenario set-up for 2009e2011, the time frame for which a complete series of dissolved mercury concentrations in the lagoon water and meteorological data are available. The model was initialised using space variable field data of sediment compositions (silt, sand and OC) and mercury sediment concentrations (Hg T , HgS and MeHg) according to Acquavita et al (2012). Concentrations in the water column were set to 0.…”

Section: The Model Structure and Its Applicationmentioning

confidence: 99%

Long-term scenarios of mercury budgeting and exports for a Mediterranean hot spot (Marano-Grado Lagoon, Adriatic Sea)

Canu

Rosati

2017

Estuarine, Coastal and Shelf Science

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The Marano-Grado Lagoon (MGL) is extensively contaminated by mercury (Hg) from local sources and long-term (500 years) tidally delivered inputs from the Idrija Hg mine (Slovenia) through Isonzo River suspended loads. A multibox WASP-7 (Water Analysis Simulation Program) model was used to simulate the long-term dynamics of the mercury cycle in the MGL. Scenario simulations were used to compute changes in the system over 100 years. Present and future Hg concentrations in water, sediment, and Hg budgets were compared, including evasion and MeHg inputs to the Mediterranean Sea, based on climate changes and mercury capping in tributary rivers. Using the Ref baseline scenario, the model computes a general decrease in HgT of 13% in the water column and of 80% in sediment and a strong MeHg increase in sediment (+73%). The net sea export of HgT decreases by 77% to up to 48 kg/y while MeHg increases by 10% to up to 0.63 kg/y. The lagoon sediment recovery time of HgT up to a target level of 0.3 mg/kg is computed over 570 years for surface sediments (1750 for subsurface sediments). When removing Hg from boundaries, the same target value for surface sediments is reached within 110 years

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Section: The Model Structure and Its Applicationmentioning

confidence: 99%

Long-term scenarios of mercury budgeting and exports for a Mediterranean hot spot (Marano-Grado Lagoon, Adriatic Sea)

Canu

Rosati

2017

Estuarine, Coastal and Shelf Science

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“…These investigations were focused on both macro and micro-components, inorganic and organic substances, gaseous compounds, semi-volatile and particulate species. Nevertheless, rather than to marine air attention was overall paid to sea water (dissolved and suspended materials: Maldonado et al, 1999;Campanelli et al, 2004;Nizzetto et al, 2008;Berrojalbiz et al, 2011;Castro-Jim enez et al, 2012;Marrucci et al, 2013;Siemers et al, 2015), sediments (Gogou et al, 2000;Tsapakis et al, 2006;Cardellicchio et al, 2007;Perra et al, 2011;Acquavita et al, 2012Acquavita et al, , 2014Marini and Frapiccini, 2013;Net et al, 2015) and sea/air interface (Marty et al, 1988;Manodori et al, 2006;Lohmann et al, 2009;Guitart et al, 2010;Mulder et al, 2014).…”

Section: Introductionmentioning

confidence: 98%

Particulate PAHs and n-alkanes in the air over Southern and Eastern Mediterranean Sea

et al. 2016

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“…The trace element geochemistry studies of the Adriatic basin can be divided into several groups, the pollution and provenance studies related to the Western Adriatic Current (WAC) along the eastern coast of Italy (DINELLI & LUCCHINI, 1999;AMOROSI et al, 2002;DINELLI et al, 2007;SPAGNOLI et al, 2008;AN-NIBALDI et al, 2009;AMOROSI, 2012;GOUDEAU et al, 2013;ROMANO et al, 2013), the pollution related to the studies of the Gulf of Trieste (COVELLI et al, 2001(COVELLI et al, , 2006(COVELLI et al, , 2007FAGANELI et al, 2003;COVELLI et al, 2006COVELLI et al, , 2007ACQUAVITA et al, 2012;EMILI et al, 2012), the coastal the average composition of fine-grained Middle Adriatic sedi ments, and that major variations in trace element concentrations depend on changes in the silicate/carbonate ratios, and the type and abundance of silicate supply. The study by TANKÈRÉ et al (2000) used a simple box mass balance mo del for Mn, Fe, Pb, Zn, Cu, Ni on an annual scale for the different compartments of the Adriatic Sea.…”

Section: Introductionmentioning

confidence: 99%

Metal deposition in deep sediments from the Central and South Adriatic Sea

Ilijanić¹,

Miko²,

Petrinec³

et al. 2014

Geol Cro

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Geochemical analysis and trace element distribution were performed on the marine sediments from short cores (30 to 50 cm) from the Middle (Jabuka and Palagruža pits, depth 230 m and 170 m, respectively) and South Adriatic Sea (depth 1030 m) and the Albanian offshore (50 m depth). The distribution of trace elements (As, Co, Cd, Cu Cr, Ni, Zn, Hg, and Pb) and major elements (Al, Ca and Mn) and mineralogy in the sediments is presented. Sediments are highly heterogeneous and consist of carbonate and detrital aluminosilicate minerals. The main mineral phase is calcite, followed by quartz, feldspars, micas and clay minerals (smectite, chlorite, illite and kaolinite). The cores were dated using 137 Cs. The cores from the South Adriatic Pit and Palagruža Sill gave estimated sedimentation rates of 1.8 mm y -1 and 3.1 mm y -1 in Jabuka Pit. Distributions of Ni and Cr showed that they can be used as tracers of sediment provenance along the southern part of the Eastern Adriatic Current. Calculated enrichment factors for Pb, Cd and Hg are highest in the top 2 cm of the cores. Mercury shows the highest degree of enrichment in 0-2 cm sediment intervals (the highest in the Albania core). Generally the estimated surface enrichment follows the order: Hg>Pb>Cd. No enrichment was found for Zn, Ni and Cr.

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Mercury in the sediments of the Marano and Grado Lagoon (northern Adriatic Sea): Sources, distribution and speciation

Cited by 78 publications

References 86 publications

Long-term scenarios of mercury budgeting and exports for a Mediterranean hot spot (Marano-Grado Lagoon, Adriatic Sea)

Long-term scenarios of mercury budgeting and exports for a Mediterranean hot spot (Marano-Grado Lagoon, Adriatic Sea)

Particulate PAHs and n-alkanes in the air over Southern and Eastern Mediterranean Sea

Metal deposition in deep sediments from the Central and South Adriatic Sea

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