Deposition of trace metals in sediments of the deltaic plain and adjacent coastal area (the Neretva River, Adriatic Sea)

Jurina, Irena; Ivanić, Maja; Vdović, Neda; Troskot-Čorbić, Tamara; Lojen, Sonja; Sondi, Ivan

doi:10.1016/j.gexplo.2015.06.005

Cited by 16 publications

(19 citation statements)

References 56 publications

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“…Oriented SE-NW, it is bounded to the NE by the Croatian coastline, to the NW by the open Adriatic Sea through the Korcula Channel, and to the SW by the Peljesac Peninsula. The NC is a microtidal, low-wave energy environment with river-dominated sedimentation processes [15,17]. The river has an average annual water inflow of 332 m 3 /s with peaks in December and April, and with a long-term seasonal variability in terms of minimum and maximum monthly discharge from low to moderate, respectively [20].…”

Section: Study Areamentioning

confidence: 99%

“…Finally, water regime in the lower course of the NR is complicated by the interaction with seawater ingression. For instance, deepening of the NR riverbed may cause higher salinity of both water and soil due to a drop in the ground water level [17,22]. Salt water constantly penetrates into underground waterways, leading to the salinity of the soil, particularly during the dry season when the river flow is reduced [23].…”

Section: Study Areamentioning

confidence: 99%

“…Salt water constantly penetrates into underground waterways, leading to the salinity of the soil, particularly during the dry season when the river flow is reduced [23]. Hence, the natural environment of the lower river course may be strongly threatened in terms of chemical, physical and biological changes [17], especially where human activities cause pressure, such as road construction sites, urbanization, hunting and mining [22,24,25]. Moreover, the NR is moderately affected by untreated municipal and industrial (metallurgy and other lighter activities) wastewaters.…”

Section: Study Areamentioning

confidence: 99%

“…Several studies were carried out on sediment dynamics and geochemistry in the Adriatic Sea, but they were mainly focused on its western side (Italian Economic Water Zone; see [8][9][10][11][12][13][14] and reference therein). Hence, few geochemical data are available from sedimentary deposits of the eastern coast [15][16][17] and potential input of contaminants is still little known.…”

Section: Introductionmentioning

confidence: 99%

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Sediment Dynamics of the Neretva Channel (Croatia Coast) Inferred by Chemical and Physical Proxies

et al. 2020

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We examined the transport of sediments and their surficial pathways from the mouth of Neretva River, through the Neretva Channel, toward the Adriatic Sea. This research was based on twelve box-cores and five grab samples collected within the Neretva Channel. Sediment dynamics were evaluated using several proxies, such as organic matter, radiochemical isotopes and select metal concentrations and physical parameters. The data analysis showed that the influence of the river on particle distribution along the Neretva Channel decreases northward, with an estimated sediment accumulation rate ranging from 1.9 to 8.5 mm/yr. The lowest accumulation rate was found in the sector not influenced by river inflow, whereas the preferential sediment accumulation area is in the center of the basin. We speculate that dispersion and accumulation of sediments are both driven by an eddy in the waters of the Neretva Channel triggered/or intensified seasonally by the interaction of karstic springs, river input and Adriatic Sea waters. Our results indicate that the anthropogenic factor does not affect the concentration of metals within the channel and that the river particles dynamics determine the Pb areal distribution, while Cr and Ni have a possible source located to the northwest of the river-mouth.

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Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sediment Dynamics of the Neretva Channel (Croatia Coast) Inferred by Chemical and Physical Proxies

et al. 2020

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“…On the one hand, there is multiyear reduction of the groundwater inflow of fresh water from the river Trebišnjica, and uncontrolled deepening of the riverbed of the Neretva River. On the other hand, there is a sea-level rise owing to global warming, leading to an increase in the salinity of the water in the Neretva basin [3].…”

Section: Introductionmentioning

confidence: 99%

Salinity and Physicochemical Water Parameters of the Lower Flow of Neretva River

Ivanković

Petrović

et al. 2017

e-GFOS

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Abstract:The lower flow of the Neretva River (delta) covers approximately 20.000 hectares. This is a unique, humid Mediterranean area with a number of important and protected wetland habitats and is a ornithological, ichthyology, and botanical reserve. By measuring the physico-chemical parameters at 20 locations, the water quality was determined with special attention to the occurrence of salinity. Increasing salinity of the Neretva water was found, owing to inflow reduction groundwater of the river Trebišnjica and the uncontrolled deepening of the Neretva riverbed. During a one-year monitoring period, field tests were conducted of significant maritime impacts on water quality. The physical parameters were the measured temperature, conductivity, electrical resistance, salinity, chemical quantity of dissolved oxygen (expressed as a percentage, mg L-1), the oxygen pressure in water, and the pH value. The values of the above parameters were measured in the field with WTW multiparameter instruments.Keywords: the Neretva River; lower flow; salinity; water quality SALINITET I FIZIČKO-KEMIJSKI POKAZATELJI KVALITETE VODE DONJEG TOKA RIJEKE NERETVESažetak: Donji tok rijeke Neretve (delta) obuhvaća oko 20.000 hektara. To je jedinstveno vlažno mediteransko područje s brojnim važnim i zaštićenim močvarnim, ornitološkim, ihtiološkim i botaničkim rezervatima. Mjerenjem fizičko-kemijskih pokazatelja kvalitete vode na 20 lokacija, posebna pozornost dana je pojavi povišenog saliniteta. Porast saliniteta u neretvanskom bazenu uzrokovan je smanjenim dotokom podzemnih voda rijeke Trebišnjice i nekontroliranim produbljivanjem korita rijeke Neretve. Tijekom jednogodišnjeg monitoringa izvedena su terenska mjerenja važnog maritimnog utjecaja na kvalitetu vode. Mjereni su fizički pokazatelji -temperatura, električna vodljivost, električna otpornost i salinitet, a od kemijskih -količina otopljenog kisika izražena kao %, mg L-1 i tlak otopljenog kisika u vodi te pH vrijednost. Mjerenja su izvedena na terenu s kombiniranim WTW višeparametarskim instrumentima.

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Distribution of Cr and Pb in artificial sea water and their sorption in marine sediments: an example from experimental mesocosms

Maccotta

Cosentino

Coccioni

et al. 2016

Environ Sci Pollut Res

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The uptake of two heavy metals (chromium and lead) in sediments in experimental mesocosms under exposure to different metal concentrations was evaluated by monitoring their concentrations over time both in seawater and in sediment. Two separate experiments under laboratory-controlled conditions were carried out for the two metals. Sediments were collected from a protected natural area characterized by low anthropic influence and were placed in mesocosms that were housed in aquaria each with seawater at a different metal concentration. At pre-established time intervals, seawater and sediment samples were collected from each mesocosm for chemical analyses. Quantification of chromium and lead concentration in seawater and sediment samples was carried out by atomic absorption spectrometer with graphite furnace. Low doses of chromium and lead (<1 mg L) do not entail an uptake in sediments and waters. At doses ≥1 mg L, evolution of concentrations over time shows significant differences between these two metals: (i) chromium absorption from seawater is twice faster than lead; (ii) lead accumulates in considerable amount in sediments. The different behaviour of the two investigated heavy metals could be ascribed to different interactions existing between metal ions and different components of sediment.

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Deposition of trace metals in sediments of the deltaic plain and adjacent coastal area (the Neretva River, Adriatic Sea)

Cited by 16 publications

References 56 publications

Sediment Dynamics of the Neretva Channel (Croatia Coast) Inferred by Chemical and Physical Proxies

Sediment Dynamics of the Neretva Channel (Croatia Coast) Inferred by Chemical and Physical Proxies

Salinity and Physicochemical Water Parameters of the Lower Flow of Neretva River

Distribution of Cr and Pb in artificial sea water and their sorption in marine sediments: an example from experimental mesocosms

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