Occurrence and leachability of polycyclic aromatic compounds in contaminated soils: Chemical and bioanalytical characterization

Larsson, Maria; Lam, Monika M.; Hees, Patrick Van; Giesy, John P.; Engwall, Magnus

doi:10.1016/j.scitotenv.2017.12.015

Cited by 36 publications

(34 citation statements)

References 40 publications

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“…Soil leaching is found to be one of the primary pathways for PTEs and PAHs entering into the environment [14,15], namely, in industrial facilities, such as those related to coal mining. Through the process of leaching, PTEs and PAHs may disperse in the environment and cause significant damages to a large number of living organisms, including humans.…”

Section: Introductionmentioning

confidence: 99%

“…Through the process of leaching, PTEs and PAHs may disperse in the environment and cause significant damages to a large number of living organisms, including humans. Specifically, the exposition of human beings to PTEs and PAHs in soil and/or water may have carcinogenic, mutagenic, teratogenic, neurological, and endocrine disruption consequences [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Changes Induced by Self-Burning in Technosols from a Coal Mine Waste Pile: A Hydropedological Approach

et al. 2021

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Coal mining originates environmental impacts on soil and water bodies, including the leaching of Potentially Toxic Elements (PTEs) and Polycyclic Aromatic Hydrocarbons (PAHs) in mine waste piles. This research aims to identify and characterize changes induced by self-burning in Technosols from a coal mine waste pile by means of a comprehensive hydropedological assessment encompassing geochemical, mineralogical, and hydrological data, bearing in mind the potential leaching of PTEs and PAHs. The soil profile from two contiguous areas (an area with normal pedological evolution vs. an area affected by self-burning) was characterized in terms of morphological features. Each soil horizon was sampled and analyzed for geochemical and mineralogical characterization. The unsaturated hydraulic conductivity (Ki) was also measured in all soil horizons. Finally, the leaching potential of PTEs and PAHs in water was evaluated. Several changes induced by self-burning were identified in the studied Technosols: development of specific soil horizons; destruction of humified organic matter; contrasting geochemical composition, especially in the deeper horizons; mineralogical modifications, pointing to clay minerals with higher ion exchange capacity and higher specific surface by sulphates of lower structural order; diverse Ki values in the intermediate and lower part of the soil profile; and specific susceptibility to leaching of PTEs and PAHs. The research demonstrated that self-burning causes severe changes of hydropedological relevance, with influence on the leaching of PTEs and PAHs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Changes Induced by Self-Burning in Technosols from a Coal Mine Waste Pile: A Hydropedological Approach

et al. 2021

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“…Consequently, the matrix of organic and inorganic contaminants with very distinct physical-chemical properties makes the remediation of these sites more challenging (Madrid et al, 2019). Larsson et al (2018) investigated the occurrence of polycyclic aromatic compounds (PAC) on soil and concluded that PAC existed in all investigated areas but in different concentrations.…”

Section: Creosotementioning

confidence: 99%

Recent Developments Studies on Wood Protection Research in Academia: A Review

Khademibami

Bobadilha

2022

Front. For. Glob. Change

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The wood preservation industry has taken large leaps to develop and produce chemicals that protect wood from microorganisms and weathering degradation with no or low environmental impact. These improvements occurred after concerns of federal and public agencies about the release of toxic components into atmosphere, soil, and water. These days, reduction in use of non-renewable resources is a crucial concern. Wood and wood-based products are generally low in CO2 emissions and can be gained from sustainable forest resources. Therefore, they can play a significant role as renewable resources. In comparison to other building materials, wood has numerous advantages, such as suitable thermal insulation, high strength to weight ratio, easy machinability, and attractive esthetics. Wood as a valuable building and industrial material requires to be protected due to its biodegradable properties especially when it is submitted to harsh conditions. Wood durability can be improved through wood protection which include wood preservatives and modification systems. Wood protection should be safe to use, efficient, cost-effective, permanent, and should not corrode metal or degrade wood components. Numerous reviews of wood protection can be found in the scientific literatures, but until now a review of a combination of wood preservation and wood modification has not been studied. It should be considered that the latest research projects in wood protection in academia not always reflect the most current developments in the industry due to exclusive rights. The findings reported in academia contribute to the safe use of preservatives, advancement of wood modification techniques, as well as recycle and disposal of treated material. Therefore, in this study, the most current research and advancements promoted in the wood protection in academia are discussed which including an overall summary of the recent developments on wood preservatives, different types of preservatives, natural preservative compounds, and modification technologies in academia.

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“…Consequently, risk assessments of remediated soil sites are based on PAH 16 concentrations pre- and post-remediation . However, some studies have shown that PAC-contaminated soils contain a diverse group of compounds beyond PAH 16, such as oxygenated PAHs (OPAHs), azaarenes (PANHs), and alkylated PAHs, ,, and their concentrations have typically not been measured and not included in the risk assessment pre- and post-remediation. 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.…”

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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Occurrence and leachability of polycyclic aromatic compounds in contaminated soils: Chemical and bioanalytical characterization

Cited by 36 publications

References 40 publications

Changes Induced by Self-Burning in Technosols from a Coal Mine Waste Pile: A Hydropedological Approach

Changes Induced by Self-Burning in Technosols from a Coal Mine Waste Pile: A Hydropedological Approach

Recent Developments Studies on Wood Protection Research in Academia: A Review

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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