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Golterman, H. L.; Paing, J.; Serrano, Laura; Gómez, Elena

doi:10.1023/a:1003212908511

Cited by 105 publications

(22 citation statements)

References 19 publications

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“…Django Reinhardt infiltration basin, Chassieu, East of Lyon). These approaches did not investigate the links between metal trace solubility and the specific dissolution of mineral or organic phases without any simultaneous monitoring of major elements mobility, mineral dissolution and trace element release, rendering impossible the identification of the mechanisms responsible for trace element release [17] [18]. Moreover, these results were produced with sediments sampled at a single time and often at a single location with the aim to conclude for the whole infiltration systems.…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Stability of Major and Trace Element Leaching in Urban Stormwater Sediments

Drapeau¹,

Delolme²,

Chatain³

et al. 2017

OJSS

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Urban sediment generated by stormwater management techniques are highly contaminated with various trace elements. The characterization of trace element speciation and mobility are critical information to improve environmental risk assessment. This study investigates the spatial and temporal variability of major and trace element release from a sedimentary layer in Django Reinhart stormwater infiltration basin (Chassieu, eastern suburbs of Lyon, France). Sampling was conducted for 3 zones and two dates. Chemical characterization was performed (X-Ray diffraction, ICP-AES). The samples were submitted to Acid Neutralization Capacity & Base Neutralization Capacity ANC-BNC tests, according to European standard 14429 (AFNOR, 2015). Solid matrices were mixed with acid or basic solutions and physicochemical parameters and major and trace element release (i.e. Al, Ca, Fe, P, S, Si, Cu, Zn and total carbon) were followed as a function of pH. The results show that the urban sediment has no significant spatial and temporal variability with regards to element release. This observation is all the more surprising that the samples were collected in three contrasting zones regarding stormwater supply and hydric conditions. Element release follows the same trends as a function of pH with a bell-shaped solubilization curve exhibiting the highest solubility at extreme pH values. However, the samples showed slight differences concerning the release of major elements. Such differences are related to slight differences in total mineral contents (organic matter, carbonates…) and chemical composition of the sediments. The results show that despite the varying environmental conditions, the sediment chemical properties can be considered as very stable and uniform over space, dependent mainly on the local geochemical context and watershed characteristics. This study highlights

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Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Stability of Major and Trace Element Leaching in Urban Stormwater Sediments

Drapeau¹,

Delolme²,

Chatain³

et al. 2017

OJSS

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“…However, there is another approach to extract the Dirac spectrum directly from the low energy effective partition function which does not suffer from the above mentioned ambiguities in the mass dependence [7,5,6]. The starting point of this approach is the so called partially quenched partition function defined as [8,9,10]…”

Section: Introductionmentioning

confidence: 99%

“…The valence quark mass dependence of the partition function (5) can be obtained from its corresponding low-energy effective partition function [13,9,10,14] which is based on the specific pattern of chiral symmetry breaking. In this way it is possible to extract exact analytical information on the QCD Dirac spectrum in the domain near zero virtuality.…”

Section: Introductionmentioning

confidence: 99%

The spectral density of the QCD Dirac operator and patterns of chiral symmetry breaking

Toublan

Verbaarschot

1999

Nuclear Physics B

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We study the spectrum of the QCD Dirac operator for two colors with fermions in the fundamental representation and for two or more colors with adjoint fermions. For N f flavors, the chiral flavor symmetry of these theories is spontaneously broken according, respectively, rather than the symmetry breaking pattern SU(N f ) × SU(N f ) → SU(N f ) for QCD with three or more colors and fundamental fermions. In this paper we study the Dirac spectrum for the first two symmetry breaking patterns. Following previous work for the third case we find the Dirac spectrum in the domain λ ≪ Λ QCD by means of partially quenched chiral perturbation theory. In particular, this result allows us to calculate the slope of the Dirac spectrum at λ = 0. We also show that for λ ≪ 1/L 2 Λ QCD (with L the linear size of the system) the Dirac spectrum is given by a chiral Random Matrix Theory with the symmetries of the Dirac operator.

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“…Biochemical components such as nucleic acids, lipids and sugars may be included in the acid soluble Organic-P fraction [7]. Golterman et al [9] proposed another extractant for acid soluble Organic-P: 0.5M trichloroacetic acid (TCA). Cold TCA (0 °C 30 min) extracts sugar bound phosphates whereas hot TCA (95 °C 30 min) extracts nucleic acid phosphate and polyphosphates [10].…”

Section: Resultsmentioning

confidence: 99%