Impact of intense rains and flooding on mercury riverine input to the coastal zone

Saniewska, Dominika; Bełdowska, Magdalena; Bełdowski, Jacek; Saniewski, Michał; Gębka, Karolina; Szubska, Marta; Wochna, Agnieszka

doi:10.1016/j.marpolbul.2017.12.058

Cited by 27 publications

(16 citation statements)

References 32 publications

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“…The calculated Hg TOT load introduced to the Gdansk Basin as a result of coastal abrasion was almost as high (87%) as the load of Hg TOT reaching the basin along with the precipitation (17.9 kg a −1 ) and over 60% higher than the dry atmospheric deposition (9.5 kg a −1 ) of Hg TOT (Bełdowska et al 2014 , 2016 ). What is important, the Hg TOT load introduced to the Gdansk Basin with abraded sediments was also over five times greater than the combined inflow of Hg TOT (2.7 kg a −1 ) via small rivers (Reda, Zagorska Struga, Plutnica and Gizdepka), with an average water flow from 0.2 to 4.2 m 3 s −1 , into the study area (Saniewska et al 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Coastal erosion—a “new” land-based source of labile mercury to the marine environment

Kwasigroch

Bełdowska

Jędruch

et al. 2018

Environ Sci Pollut Res

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Mercury (Hg) can be introduced into the marine environment in many different ways. In the case of the Baltic Sea, rivers and atmospheric deposition are the predominant ones. However, in the face of ongoing climate change, a new potential source, coastal erosion, is starting to become more important and is currently considered to be the third largest source of Hg in the Gdansk Basin region. It is especially significant along sections of coastline where, due to the higher frequency of extreme natural phenomena such as storms, heavy rains, and floods, increased erosion processes have already been noted. Cliffs, which account for about 20% of the Polish coastline, are particularly vulnerable. The aim of the study was to estimate the annual load of labile Hg entering the Gdansk Basin as a result of coastal erosion. Samples of down-core sediments (0–65 cm) were collected in the years 2016–2017 from selected cliffs situated in the Gulf of Gdansk area. The thermodesorption method was used to distinguish between labile and stable fractions of Hg. Considering the mean total Hg concentrations in the collected sediments (9.7 ng g−1) and the mean share of labile (64%), bioavailable mercury, it was estimated that the load of labile Hg originating from coastal erosion entering the Gdansk Basin is 10.0 kg per year. The load can increase by up to 50% in the case of episodic abrasion events during heavy storms and rains.Electronic supplementary materialThe online version of this article (10.1007/s11356-018-2856-7) contains supplementary material, which is available to authorized users.

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Section: Resultsmentioning

confidence: 99%

Coastal erosion—a “new” land-based source of labile mercury to the marine environment

Kwasigroch

Bełdowska

Jędruch

et al. 2018

Environ Sci Pollut Res

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“…Changed land cover, e.g. the replacement of permeable soils with sealed urban spaces, may lead to an increased vulnerability to flooding and inundation, with consequences for local economies, of which there is usually a high concentration in urban areas (Saniewska et al, 2014(Saniewska et al, , 2018.…”

Section: Impacts Of Land Use and Cover On Other Factorsmentioning

confidence: 99%

Human impacts and their interactions in the Baltic Sea region

et al. 2022

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Abstract. Coastal environments, in particular heavily populated semi-enclosed marginal seas and coasts like the Baltic Sea region, are strongly affected by human activities. A multitude of human impacts, including climate change, affect the different compartments of the environment, and these effects interact with each other. As part of the Baltic Earth Assessment Reports (BEAR), we present an inventory and discussion of different human-induced factors and processes affecting the environment of the Baltic Sea region, and their interrelations. Some are naturally occurring and modified by human activities (i.e. climate change, coastal processes, hypoxia, acidification, submarine groundwater discharges, marine ecosystems, non-indigenous species, land use and land cover), some are completely human-induced (i.e. agriculture, aquaculture, fisheries, river regulations, offshore wind farms, shipping, chemical contamination, dumped warfare agents, marine litter and microplastics, tourism, and coastal management), and they are all interrelated to different degrees. We present a general description and analysis of the state of knowledge on these interrelations. Our main insight is that climate change has an overarching, integrating impact on all of the other factors and can be interpreted as a background effect, which has different implications for the other factors. Impacts on the environment and the human sphere can be roughly allocated to anthropogenic drivers such as food production, energy production, transport, industry and economy. The findings from this inventory of available information and analysis of the different factors and their interactions in the Baltic Sea region can largely be transferred to other comparable marginal and coastal seas in the world.

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“…Downpours and floods had a crucial impact on a THg load carried by rivers (Saniewska et al 2014c ; Jędruch et al 2017 ) (Table S1 b). During these periods, the daily outflow of THg from soil was estimated at 90–150% of the daily wet deposition flux (Saniewska et al 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Status and trends of mercury pollution of the atmosphere and terrestrial ecosystems in Poland

Jędruch

Falkowska

Saniewska

et al. 2021

Ambio

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The goal of this paper is to assess the current status and trends of total mercury (THg) contamination of the atmosphere and terrestrial ecosystems in Poland. The study shows that the reduced domestic and worldwide atmospheric emission of Hg resulted in decreased THg level in the terrestrial biotope and biosphere. Considering that Poland is one of the main Hg emitters in Europe, the THg concentrations in its abiotic environment are still elevated. However, the THg level in terrestrial organisms is relatively low, which is because a large proportion of Hg deposited on land is accumulated in organic-rich soils. Regarding the THg concentration, consumption of wildlife and livestock from Poland is safe for humans. Nevertheless, the authors indicate the need for effective environmental monitoring, based on selected bioindicators, which is crucial considering the slowing reduction of Hg emission combined with the consequences of the changing climate.

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Impact of intense rains and flooding on mercury riverine input to the coastal zone

Cited by 27 publications

References 32 publications

Coastal erosion—a “new” land-based source of labile mercury to the marine environment

Coastal erosion—a “new” land-based source of labile mercury to the marine environment

Human impacts and their interactions in the Baltic Sea region

Status and trends of mercury pollution of the atmosphere and terrestrial ecosystems in Poland

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