Meteorological phenomenon as a key factor controlling variability of labile particulate mercury in rivers and its inflow into coastal zone of the sea

Gębka, Karolina; Bełdowska, Magdalena; Saniewska, Dominika; Korejwo, Ewa; Saniewski, Michał

doi:10.1016/j.envres.2020.109355

Cited by 6 publications

(10 citation statements)

References 69 publications

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“…Studies conducted by a number of scientists have shown that the highest Hg load is introduced during periods of heavy rainfall, when river water flow increases [13,16,18]. Furthermore, heavy rainfall and snowmelt, which determine surface runoff, contribute to the erosion and leaching of mercury deposited on land, which directly affects the load and form of Hg entering the southern Baltic Sea [15,34,35]. Mercury accumulated in the surface soil layer after leaching from soil profiles can either be deposited in bottom sediments or directly enrich the river suspension.…”

Section: The Load Of Particular Forms Of Mercury Entering the Bay Of Puckmentioning

confidence: 99%

“…Although the highest loads of suspended Hg are carried into the Puck Bay by the main rivers i.e. the Reda and Zagórska Struga, the most enriched load in mobile mercury is carried into the Baltic Sea by small watercourses whose catchments are dominated by pastures and wetlands [15]. As in the case of river sediment, the load entering the sea with SPM mainly consists of labile mercury.…”

Section: The Load Of Particular Forms Of Mercury Entering the Bay Of Puckmentioning

confidence: 99%

“…One reason is the continued deposition of mercury on land, where the metal accumulates in the surface layer of soils [8][9][10][11]. Studies conducted by scientists indicate that elevated concentrations of the metal are found near individual household furnaces as well as in larger urban areas where mercury is emitted into the environment during energy and heat production [12][13][14][15][16]. This indicates a significant impact of coal burning on environmental mercury concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the type of catchment development plays a major role in the process of mercury transport between land and water systems [19,20]. A study by [15] showed that continuous sealing of natural surfaces, through e.g. concreting, promotes the intensity of mercury leaching from land.…”

Section: Introductionmentioning

confidence: 99%

“…the form in which it occurs [16,21,22]. Mercury that is bioavailable to organisms is easily transformed and transported in the environment, which directly affects the form of mercury delivered by rivers to the sea [15,16,18]. This is particularly important because rivers are the main source of mercury to the Baltic coastal zone [23].…”

Section: Introductionmentioning

confidence: 99%

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Variation in the Content of Different Forms of Mercury in River Catchments of the Southern Baltic Sea – Case Study

Gębka

Bełdowska

2020

Polish Hyperbaric Research

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Mercury (Hg) is recognised as a global environmental pollutant. Despite numerous studies being conducted around the world, the transformation of mercury in natural environments is still not fully understood. In addition, increasing droughts and heavy rains are currently observed to contribute to changes in the circulation of Hg. The purpose of this study was to recognise the influence of extreme meteorological and hydrological conditions on the inflow of various forms of mercury to the coastal zone of the Bay of Puck. The studies were carried out at estuarial stations of four rivers belonging to the southern Baltic Sea catchment: Reda, Zagorska Struga, Gizdepka and Płutnica. The results showed that meteorological and hydrological parameters affect mercury speciation in river catchments, which translates into inflow of labile mercury to the southern Baltic Sea.

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Section: The Load Of Particular Forms Of Mercury Entering the Bay Of Puckmentioning

confidence: 99%

Section: The Load Of Particular Forms Of Mercury Entering the Bay Of Puckmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Variation in the Content of Different Forms of Mercury in River Catchments of the Southern Baltic Sea – Case Study

Gębka

Bełdowska

2020

Polish Hyperbaric Research

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Effect of environmental variables on mercury accumulation in sediments of an anthropogenically impacted tropical estuary (Buenaventura Bay, Colombian Pacific)

Molina,

Duque,

Cogua

2023

Environ Monit Assess

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Estuaries are the main entry areas of mercury to the marine environment and are important to understand the effect of this contaminant on marine organisms, since it accumulates in the sediments becoming available to enter the food trophic chain. This study aims to determine the environmental variables that mainly influence the spatiotemporal dynamics of total mercury accumulation in sediments of tropical estuaries. Sediment samples were collected from interior and exterior areas of the estuary during the dry and rainy seasons, representing the spatiotemporal gradients of the estuary. The grain size, organic matter content (OM), and total mercury concentration (THg) of the sediment samples were determined. In addition, salinity, temperature, dissolved oxygen, and pH of the water column associated with each sediment sample were assessed. The variations in environmental conditions, OM and THg in sediment were in accordance with a gradient which goes from conditions influenced by fresh water in the inner estuary to conditions influenced by sea water in the outer part of the estuary. The OM and THg in sediments presented similar variation patterns; they were higher in the rainy season than in the dry season and in the interior area of the estuary than in the exterior area. Despite the complex dynamic observed in the distribution and accumulation processes of mercury in sediments, these processes could be modeled from OM and salinity parameters. Due to the correlations found, in the process of accumulation of mercury in sediments the OM could represents the pathway of transport and accumulation of THg, and salinity could represent the influence of the hydroclimatic variations and environmental gradients of the estuary.

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The adsorption and release mechanism of different aged microplastics toward Hg(II) via batch experiment and the deep learning method

Li,

Xue,

Lin

et al. 2024

Chemosphere

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Meteorological phenomenon as a key factor controlling variability of labile particulate mercury in rivers and its inflow into coastal zone of the sea

Cited by 6 publications

References 69 publications

Variation in the Content of Different Forms of Mercury in River Catchments of the Southern Baltic Sea – Case Study

Variation in the Content of Different Forms of Mercury in River Catchments of the Southern Baltic Sea – Case Study

Effect of environmental variables on mercury accumulation in sediments of an anthropogenically impacted tropical estuary (Buenaventura Bay, Colombian Pacific)

The adsorption and release mechanism of different aged microplastics toward Hg(II) via batch experiment and the deep learning method

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