Bioavailability of heavy metals bound to estuarine sediments as a function of pH and salinity values

Riba, Inmaculada; García-Luque, E.; Blasco, Julián; DelValls, T. Ángel

doi:10.3184/095422903782775163

Cited by 124 publications

(65 citation statements)

References 13 publications

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“…2 and Table 1). On the other hand, Pantai Teleng Ria with the highest salinity among study sites showed the lowest concentration of Pb in the sediment as the heavy metal concentration will tend to be higher in the water [26]. Dissolved oxygen can influence the release of heavy metals from sediment by affecting the rate of oxidation of organic compound [7].…”

Section: Heavy Metal Distributionsmentioning

confidence: 94%

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

2018

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Section: Heavy Metal Distributionsmentioning

confidence: 94%

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

2018

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“…The effects of CO 2 leakage depend on the amount and/or rate of leakage, the chemical buffering capacity of the sedimentary or water body and transport and dispersion processes. The acidification of the environment might enhance the toxic effects of the contaminants and make them more bioavailable (Riba et al 2003a(Riba et al , 2004. Moreover the effects of the incidental associated substances and the substances mobilized by the injection and storage of CO 2 streams (e.g., brine) can also be assessed with this methodology.…”

Section: Integrated Methodsmentioning

confidence: 99%

An integrated approach to determine sediment quality in areas above CO2 injection and storage in agreement with the requirements of the international conventions on the protection of the marine environment

Reguera¹,

Riba

Forja³

et al. 2009

Ecotoxicology

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The urgent need to reduce the greenhouse emissions to the atmosphere has leaded to study new systems to capture and store carbon dioxide (CO(2)). The sequestration of CO(2) in marine geological formations is one of these systems proposed at the international level to effectively reduce the concentration of atmospheric CO(2). Although permanent containment is expected, it is necessary to determine the risk of leakage to the marine environment. The integrated model for the evaluation of the environmental quality of the marine environment will contribute to determine the potential environmental pathways and effects that are relevant to the consideration of the potential consequences of the leakage of CO(2) and incidental associated substances from the geological formations to the marine environment. In addition, this model will satisfy the requirements for a safe CO(2) storage in sub-seabed geological formations set in the international conventions on the protection of the marine environment (1992 OSPAR Convention and 1996 London Protocol). The objective of this paper is to show how to adapt classical methodologies based on a weight-of-evidence approach to establish the impact of CO(2) leaks in the sediment quality. It is described how the classical methods should modify their application when acidification occurs related to CO(2) leaks being the main potential impact in these areas.

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“…Metal impact, especially of lead, on lake sediment and biota have been investigated by Förstner et al [2], Davis et al [3], Riba et al [4], Bäckström [5] as well as environmental impact from dumped ammunition by Sjöström et al [6], Voie [7], U.S. Geological Survey [8] and underwater detonations Liljedahl et al [9], Karlsson et al [10] have been discussed in different studies. However, none of these studies could be used to predict the future effects of leaching of mercury from ammunition.…”

Section: Introductionmentioning

confidence: 99%

Some ecological effects of underwater self-explosion of ammunition in lake lomtjärn, sweden: the impact from mercury

Liljedahl¹,

Qvarfort²,

Berglind³

et al. 2012

Int. J. DNE

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After the Second World War, dumping in lakes was a rational way to solve the security problem with the extensive amount of unreliable or unused ageing ammunition. Most commonly the ammunition was dumped in sealed boxes or as pieces. In some cases the ammunition was deliberately detonated when dumped. In Lake Lomtjärn, a small lake in central Sweden, extremely high levels of mercury (300 mg/kg dry weight Hg) were detected in the sediments. The mercury was expected to originate from years of dumping followed by an underwater self-explosion of ignition capsule containing mercury. The lake is unique in the sense that the mercury levels are among the highest found so far in Sweden and that no other source of pollutant is present in the area. The aim of this study was to evaluate the environmental impact from the underwater explosion. Samples of sediment, bottom water, surface water, bottom fauna, littoral fauna and fi sh (muscle and liver) were analysed for metals as well as physical parameters in order to investigate effects on biota. Acute toxicity of bottom water was determined by Daphnia magna. Results showed very high mercury content (2-338 mg/kg dry weight) in sediment down to 15 cm depth evenly distributed over the whole lake and low levels for other heavy metals (As, Cd, Cu, Pb and Zn). Water showed low levels of mercury (0.02 µg/L in bottom and surface water) as for the other heavy metals (As, Cd, Cu, Pb and Zn). Disturbance of bottom fauna was found for BQI index and O/C index. Disturbance in littoral fauna was seen around the lake (low taxa in six families, ASPT index 5.4. Danish fauna index 4 and acidity index 2). Acute toxicity (Daphnia magna) was high. Levels of mercury in perch were high (muscle 0.6-3.59 mg/kg and liver 1.05-7.64 mg/kg). It was concluded that the underwater detonation of ammunition in Lake Lomtjärn has caused very high levels of mercury in the sediment and a high impact on the ecological chain. In risk assessments aiming to remediation decisions it is recommended early to highlight expected ecological pathways of (mercury) and relevant biomarkers in the ecosystem of concern.

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Bioavailability of heavy metals bound to estuarine sediments as a function of pH and salinity values

Cited by 124 publications

References 13 publications

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

Spatial Distribution of Heavy Metals in the Surface Sediments of the Southern Coast of Pacitan, Indonesia

An integrated approach to determine sediment quality in areas above CO2 injection and storage in agreement with the requirements of the international conventions on the protection of the marine environment

Some ecological effects of underwater self-explosion of ammunition in lake lomtjärn, sweden: the impact from mercury

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