The effect of concentrations and properties of phenanthrene, pyrene, and benzo(a)pyrene on desorption in contaminated soil aged for 1 year

Li, Xiaojun; Shuang, Shengqing; Li, Xinyong; Kong, Lingxue; Li, Xu; Tai, Peidong; Lin, Xiangui; Jia, Chunyun; Gong, Zongqiang

doi:10.1007/s11368-012-0629-3

Cited by 15 publications

(7 citation statements)

References 30 publications

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“…Table 2 reports the theoretical benzo(a)pyrene monolayer molar adsorption capacity (mol/m 2 ) of the different carbons based on their measured BET surface areas and the known geometric area of the benzo(a)pyrene molecular face (255.2 Å 2 ). 46 This estimate assumes that adsorption occurs in parallel, π-π stacking mode as has been previously reported, 47 which is common for higher-MW PAH on carbon surfaces. Table 2 compares the theoretical monolayer adsorption capacity with the experimental value at the equilibrium concentration of 6 mg/L, at which the apparent fractional coverages were estimated.…”

Section: Resultsmentioning

confidence: 95%

Impact of emerging, high-production-volume graphene-based materials on the bioavailability of benzo(a)pyrene to brine shrimp and fish liver cells

Rodd

Castilho

Chaparro

et al. 2018

Environ. Sci.: Nano

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With increasing commercialization of high volume, two-dimensional carbon nanomaterials comes a greater likelihood of environmental release. In aquatic environments, black carbon binds contaminants like aromatic hydrocarbons, leading to changes in their uptake, bioavailability, and toxicity. Engineered carbon nanomaterials can also adsorb pollutants onto their carbon surfaces, and nanomaterial physicochemical properties can influence this contaminant interaction. We used 2D graphene nanoplatelets and isometric carbon black nanoparticles to evaluate the influence of particle morphology and surface properties on adsorption and bioavailability of benzo(a)pyrene, a model aromatic hydrocarbon, to brine shrimp (Artemia franciscana) and a fish liver cell line (PLHC-1). Acellular adsorption studies show that while high surface area carbon black (P90) was most effective at a given concentration, 2D graphene nanoplatelets (G550) adsorbed more benzo(a)pyrene than carbon black with comparable surface area (M120). In both biological models, co-exposure to nanomaterials lead to reduced bioavailability, with G550 graphene nanoplatelets cause a greater reduction in bioavailability or response than the M120 carbon black nanoparticles. However, on a mass basis the high surface area P90 carbon black was most effective. The trends in bioavailability and adsorption were consistent across all biological and acellular studies, demonstrating the biological relevance of these results in different models of aquatic organisms. While adsorption is limited by surface area, 2D graphene nanoplatelets adsorb more benzo(a)pyrene than carbon black nanoparticles of similar surface area and charge, demonstrating that both surface area and shape play important roles in the adsorption and bioavailability of benzo(a)pyrene to carbon nanomaterials.

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Section: Resultsmentioning

confidence: 95%

Impact of emerging, high-production-volume graphene-based materials on the bioavailability of benzo(a)pyrene to brine shrimp and fish liver cells

Rodd

Castilho

Chaparro

et al. 2018

Environ. Sci.: Nano

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show abstract

“…These observations suggest that microorganisms take longer to acclimate and therefore to degrade phenanthrene at lower concentrations; while at higher concentrations, longer residence time can be interpreted as saturation of phenanthrene. The phenomena of adsorption and desorption of phenanthrene on charcoal seem to play an important role (Li et al 2012). The microbial growth in the reactor can also be inhibited by the presence of toxic metabolites, which are the products of phenanthrene degradation and their accumulation in the medium.…”

Section: Effect Of Initial Concentration Of Phenanthrene On the Degradationmentioning

confidence: 99%

Effect of the Water Type, the Inoculum and the Concentration on the Phenanthrene Degradation in a Fluidized Bed Reactor Using Activated Charcoal as a Bacterial Support

Quintal-Franco¹,

Poot-Cobá²,

López-Padilla³

et al. 2019

Rev.Mex.Ing.Quim.

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“…If large quantities of PAHs are released to soil, the sorption and desorption processes will take place at higher rates due to increased diffusivity in soil caused by steeper concentration gradients (Huang and Weber, 1998;Braida et al, 2001;Braida et al, 2002;Li et al, 2013) (Table 2). Importantly, high concentrations of PAHs may induce 'conditioning effects' on soil matrices (Braida et al, 2002).…”

Section: Effects Of Pah Concentrations and Co-contaminantsmentioning

confidence: 99%

Abiotic factors controlling bioavailability and bioaccessibility of polycyclic aromatic hydrocarbons in soil: Putting together a bigger picture

Yu¹,

Duan

Naidu

et al. 2018

Science of The Total Environment

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The bioavailability and bioaccessibility of polycyclic aromatic hydrocarbons (PAHs) in soil underpin the risk assessment of contaminated land with these contaminants. Despite a significant volume of research conducted in the past few decades, comprehensive understanding of the factors controlling the behaviour of soil PAHs and a set of descriptive soil parameters to explain variations in PAH bioavailability and bioaccessibility are still lacking. This review focuses on the role of source materials on bioavailability and bioaccessibility of soil PAHs, which is often overlooked, along with other abiotic factors including contaminant concentration and mixture, soil composition and properties, as well as environmental factors. It also takes into consideration the implications of different types of risk assessment (ecological and human health) on bioavailability and bioaccessibility of PAHs in soil. We recommend that future research should (1) account for the effects of source materials on bioavailability and bioaccessibility of soil PAHs; (2) adopt non-disruptive methods to analyse soil components controlling PAH sequestration; (3) integrate both natural organic matter (NOM) and xenobiotic organic matter (XOM) while evaluating the influences of soil organic matter (SOM) on the behaviour of PAHs; and (4) consider the dissimilar desorption scenarios in ecological risk assessment and human health risk assessment while assessing PAH bioavailability and bioaccessibility.

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The effect of concentrations and properties of phenanthrene, pyrene, and benzo(a)pyrene on desorption in contaminated soil aged for 1 year

Cited by 15 publications

References 30 publications

Impact of emerging, high-production-volume graphene-based materials on the bioavailability of benzo(a)pyrene to brine shrimp and fish liver cells

Impact of emerging, high-production-volume graphene-based materials on the bioavailability of benzo(a)pyrene to brine shrimp and fish liver cells

Effect of the Water Type, the Inoculum and the Concentration on the Phenanthrene Degradation in a Fluidized Bed Reactor Using Activated Charcoal as a Bacterial Support

Abiotic factors controlling bioavailability and bioaccessibility of polycyclic aromatic hydrocarbons in soil: Putting together a bigger picture

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