Kinetics of trace element uptake and release by particles in estuarine waters: effects of pH, salinity, and particle loading

Hatje, Vanessa; Payne, Timothy E.; Hill, David M.; McOrist, G. D.; Birch, G.F.; Szymczak, Ron

doi:10.1016/s0160-4120(03)00049-7

Cited by 207 publications

(101 citation statements)

References 43 publications

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“…microtidal estuaries) are especially vulnerable to those inputs. Aside of the hydrodynamic patterns, common processes for all estuaries which are considered in order to understand and explain the spatiotemporal distributions of trace metals primarily encompass adsorption/desorption, flocculation, biological uptake, sediment resuspension, as well as organic/inorganic complexation alongside with the competitive effects of major cations/anions (Abril et al, 2002;Dassenakis et al, 1995;Elbaz-Poulichet et al, 1996;Hatje et al, 2003b;Louis et al, 2009;Oursel et al, 2013;Rigaud et al, 2013;Waeles et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

“…solution and particle composition, speciation, dissolved organic carbon (DOC) and SPM concentration, pH, temperature, salinity), a large variation could be expected in systems which undergo different physico-chemical changes, implying that the justification of KD variation should be taken with caution (Bourg, 1987;Comans and Vandijk, 1988;Elbaz-Poulichet et al, 1996;Fu et al, 2013;Hatje et al, 2003b;Turner, 1996) and thus the direct comparison of results within different studies is not always straightforward.…”

Section: Introductionmentioning

confidence: 99%

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Evidencing the natural and anthropogenic processes controlling trace metals dynamic in a highly stratified estuary: The Krka River estuary (Adriatic, Croatia)

Cindrić

Garnier

Oursel

et al. 2015

Marine Pollution Bulletin

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Distributions of trace metals (TM), organic carbon, SPM and physico-chemical parameters were studied in the highly stratified Krka River estuary in winter/summer periods. The nonconservative behaviour of Zn, Cd, Pb and Cu in the brackish layer (plume), easily spotted due to very low inputs by the river, was mainly caused by their inputs from the pleasure boats, nautical marinas and harbour (e.g. release from antifouling paints). Contrarily, Ni and Co followed near-conservative behaviour. The extremely low SPM discharged by the river,

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evidencing the natural and anthropogenic processes controlling trace metals dynamic in a highly stratified estuary: The Krka River estuary (Adriatic, Croatia)

Cindrić

Garnier

Oursel

et al. 2015

Marine Pollution Bulletin

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“…203 Hg) também podem ser utilizados na avaliação de processos biogeoquímicos marinhos por meio de sua adição a experimentos controlados como, por exemplo, no estudo dos fluxos do ciclo do mercúrio através da superfície atmosfera--oceano, 95,96 ou na avaliação da partição de contaminantes entre as fases dissolvidas e particuladas. 97,98 O emprego de isótopos no Brasil ainda é restrito devido à pequena disponibilidade de equipamentos. Entretanto, com o atual aumento do número dos espectrômetros de massa, sobretudo no Sudeste do país, abriram-se novas possibilidades de análise de amostras ambientais em maior numero e diversidade.…”

Section: Isótopos Estáveis E Radioativosunclassified

Oceanografia e Química: unindo conhecimentos em prol dos oceanos e da sociedade

Hatje¹,

Costa²,

Cunha³

2013

Quím. Nova

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Recebido em 17/7/13; aceito em 2/9/13; publicado na web em 18/9/13 OCEANOGRAPHY AND CHEMISTRY: BRIDGING KNOWLEDGE IN FAVOR OF THE OCEANS AND SOCIETY. The marine environment is certainly one of the most complex systems to study, not only because of the challenges posed by the nature of the waters, but especially due to the interactions of physical, chemical and biological processes that control the cycles of the elements. Together with analytical chemists, oceanographers have been making a great effort in the advancement of knowledge of the distribution patterns of trace elements and processes that determine their biogeochemical cycles and influences on the climate of the planet. The international academic community is now in prime position to perform the first study on a global scale for observation of trace elements and their isotopes in the marine environment (GEOTRACES) and to evaluate the effects of major global changes associated with the influences of megacities distributed around the globe. This action can only be performed due to the development of highly sensitive detection methods and the use of clean sampling and handling techniques, together with a joint international program working toward the clear objective of expanding the frontiers of the biogeochemistry of the oceans and related topics, including climate change issues and ocean acidification associated with alterations in the carbon cycle. It is expected that the oceanographic data produced this coming decade will allow a better understanding of biogeochemical cycles, and especially the assessment of changes in trace elements and contaminants in the oceans due to anthropogenic influences, as well as its effects on ecosystems and climate. Computational models are to be constructed to simulate the conditions and processes of the modern oceans and to allow predictions. The environmental changes arising from human activity since the 18 th century (also called the Anthropocene) have made the Earth System even more complex. Anthropogenic activities have altered both terrestrial and marine ecosystems, and the legacy of these impacts in the oceans include: a) pollution of the marine environment by solid waste, including plastics; b) pollution by chemical and medical (including those for veterinary use) substances such as hormones, antibiotics, legal and illegal drugs, leading to possible endocrine disruption of marine organisms; and c) ocean acidification, the collateral effect of anthropogenic emissions of CO 2 into the atmosphere, irreversible in the human life time scale. Unfortunately, the anthropogenic alteration of the hydrosphere due to inputs of plastics, metal, hydrocarbons, contaminants of emerging concern and even with formerly "exotic" trace elements, such us rare earth elements is likely to accelerate in the near future. These emerging contaminants would likely soon present difficulties for studies in pristine environments. All this knowledge brings with it a great responsibility: helping to envisage viable adaptation and mitigation soluti...

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“…The third parameter was EC. Du Laing et al (2008Laing et al ( , 2009) and Hatje et al (2003) found that an increase in conductivity (salinity) led to increasing the mobility of some metals such as Cd and Zn, thereby increasing the availability and bioavailability of these metals to plants.…”

Section: Selection Of Soil Factorsmentioning

confidence: 99%

“…However, soil amendments such as pH (KabataPendias et al. 2000;Jackson et al, 2000), DOC (Hsu et al, 2000), and EC (Laing et al, 2009;Hatje et al, 2003) can be used to change the soil condition and reduce the high concentration of Cr in contaminated soils (Mench and Bes, 2009;Bes and Mench, 2008). Amendments that induce solubility can be used to clean polluted sites by leaching the contaminating trace elements or by facilitating their uptake by plants (phytoextraction) (Kolbas et al, 2011).…”

mentioning

confidence: 99%

Application of neural network model for the prediction of chromium concentration in phytoremediated contaminated soils

Hattab

Hambli

Motelica-Heino

et al. 2013

Journal of Geochemical Exploration

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The assessment of chromium concentrations in plants requires the quantification of a large number of soil factors that affect their potential availability and subsequent toxicity and a mathematical model that predicts their relative concentrations. Many soil characteristics can change the availability of chromium (Cr) to plants in soils. However, accurate, rapid and simple predictive models of metal concentrations are still lacking in soil and plant analysis. In the present work a novel artificial neural network (ANN) model was developed as an alternative rapid and accurate tool for the prediction of Cr concentration in dwarf bean leaves grown in the laboratory on phytoremediated contaminated soils treated with different amendments. First, sixteen (4x4) soil samples were harvested from a phytoremediated contaminated site located in south-western France. Second, a series of measurements were performed on the soil samples.The inputs are the soil amendment, the soil pH, the soil electrical conductivity and the dissolved organic carbon of the soil and the output is the concentration of Cr in the dwarf bean 2 leaves. Third, an ANN model was developed and its performance was evaluated using a test data set and then applied to predict the exposition of the bean leaves to the Cr concentration versus the soil inputs. The performance of the ANN method was compared with the traditional multi linear regressions method using the training and test data sets. The results of this studyshow that the ANN model trained on experimental measurements can be successfully applied to the rapid prediction of plant exposition to Cr.

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Kinetics of trace element uptake and release by particles in estuarine waters: effects of pH, salinity, and particle loading

Cited by 207 publications

References 43 publications

Evidencing the natural and anthropogenic processes controlling trace metals dynamic in a highly stratified estuary: The Krka River estuary (Adriatic, Croatia)

Evidencing the natural and anthropogenic processes controlling trace metals dynamic in a highly stratified estuary: The Krka River estuary (Adriatic, Croatia)

Oceanografia e Química: unindo conhecimentos em prol dos oceanos e da sociedade

Application of neural network model for the prediction of chromium concentration in phytoremediated contaminated soils

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