Implementing standardized desorption extraction into bioavailability-oriented bioremediation of PAH-polluted soils

Posada-Baquero, Rosa; Martín, María López; Ortega‐Calvo, José‐Julio

doi:10.1016/j.scitotenv.2019.134011

Cited by 26 publications

(10 citation statements)

References 22 publications

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“…A similar pattern was observed after chemical oxidation. The results presented in this paper are also in contradiction with the theory exposed by Posada-Baquero et al [40], even though the reported phytoremediation results are based on different plants. In the present paper, the PAHs' bioaccessible contents throughout the rhizoremediation trial show almost similar patterns for (un)planted soil samples (Figures 3b, 4b, 5b and 6b).…”

Section: Reference Tested Plant (S) Phytoremediation Conditions Phytoremediation Outcomescontrasting

confidence: 99%

“…The bioaccessible PAHs' contents, however, show contrasting patterns. Posada-Baquero et al [40,41] reported that, generally speaking, techniques such as phytoremediation or biostimulation seem to lead to decreases in PAHs bioaccessible contents, whilst techniques that were more focused on influencing bioaccessibility, such as the addition of surfactants or bioaugmentation, seem to lead to increases in the PAHs' bioaccessible contents. However, the results reported by Medina et al [42] also showed an increase in PAHs bioaccessible contents after biostimulation was employed.…”

Section: Reference Tested Plant (S) Phytoremediation Conditions Phytoremediation Outcomesmentioning

confidence: 99%

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Temporal Evolution of PAHs Bioaccessibility in an Aged-Contaminated Soil during the Growth of Two Fabaceae

Davin

Renard

Lefébure

et al. 2020

IJERPH

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Polycyclic aromatic hydrocarbons (PAHs) are health-concerning organic compounds that accumulate in the environment. Bioremediation and phytoremediation are studied to develop eco-friendly remediation techniques. In this study, the effects of two plants (Medicago sativa L. and Trifolium pratense L.) on the PAHs’ bioaccessibility in an aged-contaminated soil throughout a long-term rhizoremediation trial was investigated. A bioaccessibility measurement protocol, using Tenax® beads, was adapted to the studied soil. The aged-contaminated soil was cultured with each plant type and compared to unplanted soil. The bioaccessible and residual PAH contents were quantified after 3, 6 and 12 months. The PAHs’ desorption kinetics were established for 15 PAHs and described by a site distribution model. A common Tenax® extraction time (24 h) was established as a comparison basis for PAHs bioaccessibility. The rhizoremediation results show that M. sativa developed better than T. pratense on the contaminated soil. When plants were absent (control) or small (T. pratense), the global PAHs’ residual contents dissipated from the rhizosphere to 8% and 10% of the total initial content, respectively. However, in the presence of M. sativa, dissipation after 12 months was only 50% of the total initial content. Finally, the PAHs’ bioaccessible content increased more significantly in the absence of plants. This one-year trial brought no evidence that the presence of M. sativa or T. pratense on this tested aged-contaminated soil was beneficial in the PAH remediation process, compared to unplanted soil.

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Section: Reference Tested Plant (S) Phytoremediation Conditions Phytoremediation Outcomescontrasting

confidence: 99%

Section: Reference Tested Plant (S) Phytoremediation Conditions Phytoremediation Outcomesmentioning

confidence: 99%

Temporal Evolution of PAHs Bioaccessibility in an Aged-Contaminated Soil during the Growth of Two Fabaceae

Davin

Renard

Lefébure

et al. 2020

IJERPH

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“…Recently, studies have started to assess the bioavailability of PAHs in soils/sediments after undergoing remediation. Posada-Baquero et al (2019 recently applied the ISO/TS 16751 norm to determine the environmental availability of PAHs in aged-contaminated soils before and after remediation treatments, and our team measured PAH bioaccessibility throughout a bioremediation trial (Davin et al, 2019) and a rhizoremediation trial (Davin et al, 2020) before the norm came out.…”

Section: On the Use Of The Bioaccessibility Parameter In Remediation mentioning

confidence: 99%

Targeting the right parameters in PAH remediation studies

Davin

Colinet

Fauconnier

2021

Environmental Pollution

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“…Other groups of compounds that have often not been studied are the transformation products (TPs) of parent PAHs (PAH-TPs), such as hydroxylated PAHs (OHPAHs), and other PACs, such as sulfur heterocyclic PAHs (PASHs) and oxygen heterocyclic PAHs (PAOHs). ,, Screening PAH-TPs and other PACs is important not only because it will result in better representation of the actual profile of PAC-contaminated soil sites but also because some of these compounds are known to be toxic and/or mutagenic. − Recent studies of the remediation of PAC-contaminated soils showed the association between an increase in toxicity or genotoxicity and an increase in the concentrations of PAH-TPs and PAC. ,, Another important aspect in remediation of PAC-contaminated soil sites that was also typically not assessed was the bioavailability of fractions of the soil post-remediation. Some studies have shown that bioavailability of PAC increased post-remediation, − which is relevant to measure because of the potential environmental health implications for organisms in the terrestrial ecosystem. The chemical, toxicity, and bioavailability assessments are needed to address the knowledge gap regarding the presence, properties, and toxicity of PAH-TPs and other PACs.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in the Study of the Remediation of Polycyclic Aromatic Compound (PAC)-Contaminated Soils: Transformation Products, Toxicity, and Bioavailability Analyses

Titaley

Simonich

Larsson

2020

Environ. Sci. Technol. Lett.

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Polycyclic aromatic compounds (PACs) encompass a diverse group of compounds, often found in historically contaminated sites. Different experimental techniques have been used to remediate PAC-contaminated soils. This brief review surveyed more than 270 studies concerning remediation of PAC-contaminated soils and found that, while these studies often measured the concentration of 16 parent polycyclic aromatic hydrocarbons (PAHs) pre-and post-remediation, only a fraction of the studies included the measurement of PAC transformation products (PAC-TPs) and other PACs (n = 33). Only a few studies also incorporated genotoxicity/toxicity/mutagenicity analysis pre-and post-remediation (n = 5). Another aspect that these studies often neglected to include was bioavailability, as none of the studies that included measurement of PAH-TPs and PACs included bioavailability investigation. On the basis of the literature analysis, future remediation studies need to consider chemical analysis of PAH-TPs and PACs, genotoxicity/toxicity/mutagenicity, and bioavailability analyses pre-and post-remediation. These assessments will help address numerous concerns, including, among others, the presence, properties, and toxicity of PACs and PAH-TPs, risk assessment of soil post-remediation, and the bioavailability of PAH-TPs. Other supplementary techniques that aid in these analyses and recommendations for future analyses are also discussed.

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Implementing standardized desorption extraction into bioavailability-oriented bioremediation of PAH-polluted soils

Cited by 26 publications

References 22 publications

Temporal Evolution of PAHs Bioaccessibility in an Aged-Contaminated Soil during the Growth of Two Fabaceae

Temporal Evolution of PAHs Bioaccessibility in an Aged-Contaminated Soil during the Growth of Two Fabaceae

Targeting the right parameters in PAH remediation studies

Recent Advances in the Study of the Remediation of Polycyclic Aromatic Compound (PAC)-Contaminated Soils: Transformation Products, Toxicity, and Bioavailability Analyses

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