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Journal of Environmental Monitoring Vol -14

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Environmental digest ( Journal of Environmental Monitoring Vol - 14 Issue - 8 )

Screening organic chemicals in commerce for emissions in the context of environmental and human exposure

Utilizing pyrosequencing and quantitative PCR to characterize fungal populations among house dust samples

Microbial secondary metabolites in school buildings inspected for moisture damage in Finland, The Netherlands and Spain

Different collector types for sampling deposition of polycyclic aromatic hydrocarbons – comparison of measurement results and their uncertainty

Ecotoxicity of fluvial sediments downstream of the Ajka red mud spill, Hungary

Correlations in polycyclic aromatic hydrocarbon (PAH) concentrations in UK ambient air and implications for source apportionment

Inter-annual and spatial variability in hillslope runoff and mercury flux during spring snowmelt

Characterisation of occupational exposure to air contaminants in a nitrate fertiliser production plant

Persistent organic pollutants in sediment from the southern Baltic: risk assessment

Fragmentation of extracellular DNA by long-term exposure to radiation from uranium in aquatic environments

Reducing dust exposure in indoor climbing gyms

Changes in thyroid peroxidase activity in response to various chemicals

Hydrogeological definition and applicability of abandoned coal mines as water reservoirs

Prospective ecological risk assessment of sediment resuspension in an estuary

Evaluation of a portable nephelometer against the Tapered Element Oscillating Microbalance method for monitoring PM_2.5

Bioaccumulation and related effects of PCBs and organochlorinated pesticides in freshwater fish Hypostomus commersoni

Assessment of cyclodextrin-enhanced extraction of crude oil from contaminated porous media

Study on transfers of uranium, thorium and decay products from grain, water and soil to chicken meat and egg contents

Mercury uptake and allocation in Juncus maritimus: implications for phytoremediation and restoration of a mercury contaminated salt marsh

Evaluation of river pollution of neonicotinoids in Osaka City (Japan) by LC/MS with dopant-assisted photoionisation

Oxidative stress in Cyprinus carpio to analyze microcystin impact in eutrophic shallow lakes: a preliminary study

Occurrence and removal of endocrine-disrupting chemicals in wastewater treatment plants in the Three Gorges Reservoir area, Chongqing, China

Effects of dietary cadmium exposure on osmoregulation and urine concentration mechanisms of the semi-desert rodent Meriones shawi

Atmospheric polycyclic aromatic hydrocarbons in an industrialized city, Kocaeli, Turkey: study of seasonal variations, influence of meteorological parameters and health risk estimation

Labile pools of Pb in vegetable-growing soils investigated by an isotope dilution method and its influence on soil pH

A simple linear model for estimating ozone AOT40 at forest sites from raw passive sampling data

Simulation of pyrite oxidation in fresh mine tailings under near-neutral conditions

Structural and molecular analysis of pollution-linked deformities in a natural Aphanius fasciatus (Valenciennes, 1821) population from the Tunisian coast

Variations in wood burning organic marker concentrations in the atmospheres of four European cities

A new analytical method for the classification of time–location data obtained from the global positioning system (GPS)

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Assessment of cyclodextrin-enhanced extraction of crude oil from contaminated porous media

Content Provider	Royal Society of Chemistry (RSC)
Author	Gao, Heng Overton, Edward B. Miles, Martin S. Wong, Roberto L. Meyer, Buffy M.
Copyright Year	2012
Abstract	The purpose of this study was to evaluate the effects of cyclodextrin (CD) on the extraction of Macondo well oil from contaminated porous media over a range of hydroxypropyl-β-CD (HPβCD) concentrations. To our knowledge, this is the first dataset on this type of CD yet assembled for an actual crude oil. The results showed that HPβCD can significantly increase oil extraction efficiency, demonstrated by increasing concentrations of all tested normal alkanes (nC15–nC35) and polyaromatic hydrocarbons (PAHs) in the aqueous phase with increasing CD concentration. A linear relationship between the extraction enhancement effect and CD concentration were verified experimentally and high correlation coefficients for total PAHs (R2 = 0.82) and alkanes (R2 = 0.99) were determined. For a 20% CD solution, 3.13 wt% of alkanes and 32.12 wt% of total PAHs were extracted to the aqueous phase, which was significantly more than what was extracted with water only (0.04% and 0.21% for alkanes and PAHs, respectively). This result shows that the remediation of oil contaminated media can be significantly enhanced through the use of HPβCD solutions in flushing or pump and treat operations to remove sorbed oil. The CD extraction enhancement effect decreases with increasing n-alkane chain length for the carbon number range tested. CD significantly enhanced PAH extraction from sand and the enhancement effect increased in the order of parent compounds < C-1 substituted < C-2 substituted < C-3 substituted for most PAHs tested. This study provides important information to assess the feasibility of using CD as a near-shore agent to enhance the cleanup of oil contaminated porous media.
Starting Page	2164
Ending Page	2169
Page Count	6
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	14
Issue Number	8
Journal	Journal of Environmental Monitoring
DOI	10.1039/c2em30223c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Macondo Cyclodextrin Deepwater Horizon explosion Petroleum Polycyclic aromatic hydrocarbon Carbon
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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Prediction of PAH biodegradation in field contaminated soils using a cyclodextrin extraction technique

Hydrocarbon degradation potentials of indigenous fungal isolates from petroleum contaminated soils.

Polycyclic aromatic hydrocarbons in Dalian soils: distribution and toxicity assessment

Dermal exposure to weathered MC252 crude oil results in echocardiographically identifiable systolic myocardial dysfunction in double-crested cormorants ( Phalacrocorax auritus )

Persistence and biodegradation of oil at the ocean floor following Deepwater Horizon

A Targeted Health Risk Assessment Following the Deepwater Horizon Oil Spill: Polycyclic Aromatic Hydrocarbon Exposure in Vietnamese-American Shrimp Consumers

Identifying polycyclic aromatic hydrocarbon-degrading bacteria in oil-contaminated surface waters at Deepwater Horizon by cultivation, stable isotope probing and pyrosequencing

A Targeted Health Risk Assessment Following the Deepwater Horizon Oil Spill: Polycyclic Aromatic Hydrocarbon Exposure in Vietnamese-American Shrimp Consumers

Identifying polycyclic aromatic hydrocarbon-degrading bacteria in oil-contaminated surface waters at Deepwater Horizon by cultivation, stable isotope probing and pyrosequencing

Assessment of cyclodextrin-enhanced extraction of crude oil from contaminated porous media

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