Processes affecting the transformation of mercury in the coastal zone in the vicinity of two river mouths in the southern Baltic Sea

Saniewska, Dominika; Bełdowska, Magdalena; Szymczak, Ewa; Kuliński, Karol; Bełdowski, Jacek; Voß, Maren; Pryputniewicz-Flis, Dorota; Burska, Dorota

doi:10.1016/j.marchem.2021.104065

Cited by 14 publications

(9 citation statements)

References 60 publications

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“…The Vistula River contributes about 90% of the total inflow to the Gulf of Gda ńsk [24]. Along with the river's waters come nutrients, organic matter and various pollutants: heavy metals, organic pollutants, including pharmaceuticals and emerging contaminants [25][26][27]. In addition to the Vistula River, there are other sources of pollutants such as dozens of watercourses, ports, industry, wastewater treatment plants, atmospheric deposition or disturbed sediment [26].…”

Section: Introductionmentioning

confidence: 99%

Role of Macrofaunal Communities in the Vistula River Plume, the Baltic Sea—Bioturbation and Bioirrigation Potential

Miernik

Janas

Kendzierska

2023

Biology

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Macrozoobenthos plays a key role in the transformation of inputs from rivers to the sea, such as nutrients, organic matter, or pollutants, and influences biogeochemical processes in the sediments through bioturbation and bioirrigation activity. The purpose of our study was to determine the structure of benthic communities, their bioturbation (BPC) and bioirrigation potential (IPC), and the vertical distribution of macrofauna in the Gulf of Gdańsk. The study revealed changes in the structure of benthic communities and, consequently, in the bioturbation and bioirrigation potential in the study area. Despite the presence of diverse and rich communities in the coastal zone, BPC and IPC values, although high, were formed by a few species. Both indices were formed mainly by the clam Macoma balthica and polychaetes, although the proportion of polychaetes in IPC was higher than in BPC. In the deepest zones, the communities became poorer until they eventually disappeared, along with all macrofaunal functions. Both indices changed similarly with distance from the Vistula River mouth, and there was a very strong correlation between them. We also demonstrated that the highest diversity of the macrofauna was observed in the upper first cm of the sediment, but the highest biomass was observed in deeper layers—at a depth of up to 6 cm, and single individuals occurred even below 10 cm.

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Section: Introductionmentioning

confidence: 99%

Role of Macrofaunal Communities in the Vistula River Plume, the Baltic Sea—Bioturbation and Bioirrigation Potential

Miernik

Janas

Kendzierska

2023

Biology

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“…Nonetheless, in this present study, the presence of mercury was not detected in all sampling points (Table 4). The absence of mercury could be influenced by geographical factor, phase concentraiton [Cui et al, 2021], salinity [Bełdowska et al, 2015], and the mixing of river and sea waters [Saniewska et al, 2022]. There is a possibility that the mercury has been carried to the ocean, as suggested by a previous research [Saniewska et al, 2022].…”

Section: Mercury Content In Watermentioning

confidence: 89%

“…The absence of mercury could be influenced by geographical factor, phase concentraiton [Cui et al, 2021], salinity [Bełdowska et al, 2015], and the mixing of river and sea waters [Saniewska et al, 2022]. There is a possibility that the mercury has been carried to the ocean, as suggested by a previous research [Saniewska et al, 2022]. Hence, the mercury content left in the water sample is too small to be detected.…”

Section: Mercury Content In Watermentioning

confidence: 95%

“…Usually, the processing site is located near the watershed [González-Valoys et al, 2022]. It is ascribed to the fact that the processing requires a lot of water, and in addition, its location near the watershed would ease the waste discharge [Saniewska et al, 2022]. The waste effluent is discharged directly to the river; meanwhile, the solid waste is stacked around the site without proper management.…”

Section: Introductionmentioning

confidence: 99%

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Distribution of Mercury in Soil, Water, and Vegetable Fern in a Former Gold Mining Area – Evidence from Nagan Raya Regency, Aceh Province, Indonesia

Nisah¹,

Muslem²,

Ashari³

et al. 2022

J. Ecol. Eng.

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“…In aquatic environments, mercury, of anthropic origin, is generally incorporated into the sediment in its inorganic form, which, due to variations in the physical-chemical characteristics of the environment, can undergo methylation, giving rise to methylmercury [7]. Therefore, the concern with mercury in environments such as rivers and seas becomes relevant in the scientific community [8].…”

Section: Introductionmentioning

confidence: 99%

Hg Pollution Indices along the Reis Magos River Basin—Brazil: A Precursory Study

Sartori

Dalfior

Provete

et al. 2022

IJERPH

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Mercury is a metal present in the Earth’s crust, but due to human contribution, its concentration can increase, causing environmental impacts to aquatic ecosystems, among others. The Reis Magos River Hydrographic Basin represents economic and socio-environmental importance for the state of Espírito Santo, Brazil. However, there are not many publications regarding the quality of water and sediments, so no data is reported concerning the total concentration of Hg. Thus, the present work aimed to evaluate the distribution of total Hg in water and sediments along this hydrographic basin. For a better inference, physicochemical parameters of the water were determined (temperature, pH, electrical conductivity, oxidation-reduction potential (ORP), turbidity, dissolved oxygen (DO), total dissolved solids (TDS), and salinity), and in the sediments, the contents of matter organic matter, pH, carbonates and granulometry. Mercury determination was performed by Thermodecomposition and Amalgamation Atomic Absorption Spectrometry (TDA AAS) with a DMA-80 spectrometer. The Hg determined in the water was lower than the limit of quantification, 0.14 µg∙L−1, which is lower than the maximum limits recommended by world reference environmental agencies. In the sediment samples, the Hg found were below 170 µg∙kg−1, values below which there is less possibility of an adverse effect on the biota. However, when the degree of anthropic contribution was evaluated using the Geoaccumulation index (IGeo), the contamination factor (CF), and the ecological risk potential index (EF), there was evidence of moderate pollution. Thus, this highlighted the need for monitoring the region since climatic variations and physical-chemical parameters influence the redistribution of Hg between the water/sediment interface.

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Processes affecting the transformation of mercury in the coastal zone in the vicinity of two river mouths in the southern Baltic Sea

Cited by 14 publications

References 60 publications

Role of Macrofaunal Communities in the Vistula River Plume, the Baltic Sea—Bioturbation and Bioirrigation Potential

Role of Macrofaunal Communities in the Vistula River Plume, the Baltic Sea—Bioturbation and Bioirrigation Potential

Distribution of Mercury in Soil, Water, and Vegetable Fern in a Former Gold Mining Area – Evidence from Nagan Raya Regency, Aceh Province, Indonesia

Hg Pollution Indices along the Reis Magos River Basin—Brazil: A Precursory Study

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