Enrichment of heavy metals in Baltic Sea sediments (Kiel Bight) - Early diagenesis and anthropogenic influence

1996 ◽  
Vol 147 (1) ◽  
pp. 137-144
Author(s):  
Kirsten Meiwirth ◽  
Lüder Kruse ◽  
Susanne Wachtendorf ◽  
Melanie Wienberg ◽  
Matthias Zabel ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Baltic Sea ◽  
Early Diagenesis ◽  
Anthropogenic Influence ◽  
Kiel Bight

TRANSFORMATIONS OF HIGH-CHARGED SWELLING MINERALS DURING EARLY DIAGENESIS IN RECENT SEDIMENTS OF GDANSK BAY (BALTIC SEA)

2019 ◽  
Author(s):  
Marta Kisiel ◽  
◽  
Michal Skiba ◽  
Artur Kuligiewicz ◽  
Magdalena Skoneczna ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Early Diagenesis ◽  
Recent Sediments

scholarly journals Physico-chemical variability and heavy metal pollution of surface sediment in a non-channeled section of Dilúvio Stream (Southern Brazil) and the influence of channeled section in sediment pollution

2019 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
Pedro Alexandre Sodrzeieski ◽  
Leonardo Capeleto de Andrade ◽  
Tales Tiecher ◽  
Flávio Anastácio de Oliveira Camargo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Total Concentration ◽  
Mineralogical Composition ◽  
Sediment Pollution ◽  
Anthropogenic Influence ◽  
Southern Brazil ◽  
Physico Chemical ◽  
Chemical Variability ◽  
The Impact

Dilúvio Stream flows through an area with a great population density in Porto Alegre, Southern Brazil. The anthropogenic influence in the surroundings impacted negatively the quality of the sediments of Dilúvio Stream and Lake Guaíba. This study evaluated the physico-chemical variability of surface sediments in a non-channeled section of Dilúvio Stream. Additionally, we compared the concentration of several heavy metals in this section with data from previous studies in the margins of Lake Guaíba near the outflow of Dilúvio Stream in order to evaluate the impact of urbanization on sediment pollution. The pH, bulk density, particle-size distribution, electrical conductivity, organic carbon, assimilable phosphorus, total nitrogen, mineralogical composition (X-ray diffractogram) and pseudo total concentration of several metals (Fe, Al, Ca, Mg, Na, K, Mn, Ba, Zn, V, As, Pb, Cu, Cr, Co, Ni, Cd, Mo, and Se) were evaluated. The results showed that the sediments in the non-channeled section of Dilúvio Stream are predominantly sandy, with heavy metal contents below the quality reference values. Quartz and feldspar predominated in all sites. The concentration of Zn, Pb, Cu, Cr, and Ni were lower than that observed in the margins of Lake Guaíba near the outflow of Dilúvio Stream, possibly due to pollution input throughout the channeled section. The Dilúvio Stream shows indications of an anthropogenic influence in the heavy metals concentration through the channeled area.

100-years-changes in the phytoplankton community of Kiel Bight (Baltic Sea)

2008 ◽  
Vol 73 (3-4) ◽  
pp. 300-322 ◽  
Author(s):  
Norbert Wasmund ◽  
Jeanette Göbel ◽  
Bodo v. Bodungen
Keyword(s):  
Baltic Sea ◽  
Phytoplankton Community ◽  
Kiel Bight

Dissolved heavy metal fluxes at sediment-water interface in polluted sediments of the Adriatic Sea

2020 ◽  
Author(s):  
Federico Spagnoli ◽  
Rocco De Marco ◽  
Giordano Giuliani ◽  
Pierluigi Penna ◽  
Alessandra Campanelli ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Pore Water ◽  
Adriatic Sea ◽  
Degradation Products ◽  
Early Diagenesis ◽  
Benthic Fluxes ◽  
Organic Matter Degradation ◽  
Po River ◽  
River Mouths

<p>To evaluate the anthropogenic impact in surface sediments of the Northern and Central Adriatic Sea, dissolved fluxes at the sediment water interface of heavy metals and nutrients on the sea bottom in front of the Po River mouths and along the western side of the Northern and Central Adriatic Sea have been determined. The fluxes have been measured by benthic chamber deployments and calculated by pore water modelling. Pore waters composition have been used also to understand the early diagenesis processes generating the benthic fluxes.</p><p>Benthic chamber deployments and sediment core collection for pore water extraction have been carried out in three cruises in spring and autumn 2013 and autumn 2014.</p><p>The study stations have been chosen on the base of previous research results indicating a decreasing heavy metal and organic matter surface content leaving from the Po River mouths (Pérez-Albaladejo et al., 2016). The data obtained have been compared with previous studies carried in the Adriatic Sea (Spagnoli et al. 2010).</p><p>Results of the 2013 and 2014 cruises and of previous investigations indicate a consistent and rapid dissolved benthic flux decreasing going away from the Po River mouths both southward, eastward and northward.</p><p>The decreasing regards the final electron acceptors and the organic matter degradation products and some heavy metals.</p><p>On the whole, different early diagenesis environments have been recognized in the Northern and Central Adriatic Sea: they embrace two end members: from the Po River Prodelta to the Mid Adriatic Depression (MAD) (Spagnoli et al., 2014). In front of the Po River sediments are characterized by high sedimentation rate and by high inputs of fresh marine organic matter, continental organic matter and Fe-oxyhydroxides. These inputs produce high concentrations of organic matter degradation products, strong anoxic environment in the pore waters and high dissolved benthic fluxes. In the MAD the diagenetic environments are characterized by low sedimentation rate and low inputs of reactive organic matter that produce low concentrations of pore-water organic matter degradation products with oxic conditions near the surface and weak benthic fluxes.</p><p>As regard the two major metals involved in the early diagenesis processes (Fe and Mn), they too show dissolved benthic fluxes decreases from the Po River mouths. Also in this case, this trend is attributed to the high Po River dissolved and particulate, anthropogenic and natural, metal inputs that deposit in the surface sediments of the Po Prodelta (Spagnoli and Bergamini, 1997).</p><p>The dissolved benthic fluxes of trace heavy metals (Co, Ni, Zn, Cu, Cd, Pb) indicate that some elements, such as Co and Pb, are clearly adsorbed by the sediment that act, for these two elements as sink. Other elements, such as Cu, don’t show a clear north–south trend s, while other elements, such as Cd, indicate a southward decreasing trend suggesting a behavior affected by the Po River inputs and Fe-Mn-oxyhydroxide cycle.</p>

The distribution of heavy metals and 137 Cs in the central part of the Polish maritime zone (Baltic Sea) – the area selected for wind farm acquisition

2017 ◽  
Vol 198 ◽  
pp. 471-481 ◽  
Author(s):  
Agata Zaborska ◽  
Alicja Kosakowska ◽  
Jacek Bełdowski ◽  
Magdalena Bełdowska ◽  
Marta Szubska ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Baltic Sea ◽  
Wind Farm

scholarly journals Heavy metals contamination of the sediments of the south-eastern Baltic Sea: the impact of economic development

Baltica ◽  
2019 ◽  
Vol 32 (1) ◽  
pp. 51-62
Author(s):  
Alexander Krek ◽  
Aleksandr Danchenkov ◽  
Marina Ulyanova ◽  
Darya Ryabchuk
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Baltic Sea ◽  
Metal Concentration ◽  
Bottom Sediments ◽  
Heavy Metal Concentration ◽  
South Eastern ◽  
Heavy Metals Contamination ◽  
The Impact ◽  
Eastern Baltic

The scope of the study was to assess the impact of potential sources of Cu, Zn, Co, Ni, and Cr on bottom sediments of the Russian sector of the south-eastern Baltic Sea. A total of 68 samples were taken and analyzed for grain-size (laser diffraction and sieve method) and heavy metal concentration (atomic absorption spectroscopy method). To avoid the influence of the sorption capacity of the fine-grained sediments to accumulate the pollutants, the normalization of the heavy metal concentration to Fe was applied. The environmental indices (contamination factor and modified degree of contamination) were calculated. The research has shown the contribution of oil platform, pipelines, ports and wastewater treatment facilities on the geochemical composition of bottom sediments. The authors have identified the level of heavy metals contamination of the middle parts of the Curonian and Vistula spits as a result of alongshore transport of pollutants.

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