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Showing 1-30 of 40 results for "736198" within Papers
Ethylbenzene.
Reviews of environmental contamination and toxicology, 106, 123-131 (1988-01-01)
Ch Vlachokostas et al.
Environmental pollution (Barking, Essex : 1987), 177, 125-134 (2013-03-19)
Emission from road traffic has become the most important source of local air pollution in numerous European cities. Epidemiological research community has established consistent associations between traffic-related substances and various health outcomes. Nevertheless, the vast majority of urban areas are
Fei Yu et al.
Journal of hazardous materials, 237-238, 102-109 (2012-09-12)
To investigate the effect of pore structure and surface chemistry on adsorption of monoaromatics, multi-walled carbon nanotubes (MWCNTs) with different specific surface area (SSA) and surface oxygen content by KOH activation treatment have been prepared. The results indicate that adsorption
Tieyu Wang et al.
Ecotoxicology and environmental safety, 104, 357-364 (2014-04-17)
The contamination status and health risks of benzene, toluene, ethylbenzene and xylene (BTEX) in air, soil, dust and groundwater were evaluated in a pesticide chemical region located in Hebei province, China. The concentrations of BTEX in air ranged from 7.80
You-Ya Zhou et al.
Environmental monitoring and assessment, 185(4), 3037-3048 (2012-09-11)
A method based on headspace (HS) sampling coupling with portable gas chromatography (GC) with photo ionization detector (PID) was developed for rapid determination of benzene, toluene, ethylbenzene, and xylenes (BTEX) in soils. Optimal conditions for HS gas sampling procedure were
M Rezazadeh Azari et al.
The international journal of occupational and environmental medicine, 3(1), 39-44 (2012-10-02)
Benzene, toluene, ethylbenzene and xylene (BTEX) are the most important toxic volatile compounds in the air and could be easily absorbed through the respiratory tract. In recent years, the risk of exposure to BTEX compounds, especially benzene as a carcinogen
Sherilyn A Gross et al.
Journal of the Air & Waste Management Association (1995), 63(4), 424-432 (2013-05-22)
Concerns have arisen among the public regarding the potentialfor drinking-water contamination from the migration of methane gas and hazardous chemicals associated with hydraulic fracturing and horizontal drilling. However, little attention has been paid to the potentialfor groundwater contamination resulting from
Ethylbenzene.
IARC monographs on the evaluation of carcinogenic risks to humans, 77, 227-266 (2000-12-02)
Carla B Vidal et al.
Journal of environmental management, 112, 178-185 (2012-08-28)
Various technologies have been used for the treatment and remediation of areas contaminated by BTEX (benzene, toluene, ethylbenzene and xylenes), which are organic compounds that are of particular concern due to their toxicity. Potential applications of synthetic zeolites for environmental
Amy V Callaghan
Current opinion in biotechnology, 24(3), 506-515 (2012-09-25)
Metabolomics is a powerful tool for the assessment of expressed (in vivo or in situ) biological processes. Metabolite profiling is often employed during field investigations of hydrocarbon-laden environments for the purpose(s) of determining the extent of intrinsic or enhanced natural
Hassan Karimi-Maleh et al.
Biosensors & bioelectronics, 48, 270-275 (2013-05-28)
A carbon paste electrode (CPE) modified with (9, 10-dihydro-9, 10-ethanoanthracene-11, 12-dicarboximido)-4-ethylbenzene-1, 2-diol (DEDE) and NiO/CNTs nanocomposite was used for the sensitive voltammetric determination of cysteamine (CA), nicotinamide adenine dinucleotide (NADH) and folic acid (FA) for the first time. The synthesized
Andreia Neves Fernandes et al.
Bulletin of environmental contamination and toxicology, 92(4), 455-459 (2014-02-18)
This study examined surface water samples for the presence of the monoaromatic hydrocarbons benzene, toluene, ethylbenzene and xylene. Water samples were collected from the sub-basin of the Tegas River and the Marrecas Stream microbasin located in the metropolitan region of
W Tang et al.
Toxicology, 144(1-3), 39-50 (2000-04-27)
In the present studies, human exposure to styrene and to ethylbenzene (EB) is assessed on the basis of literature data. Total styrene and total EB exposure result from inhalation and from food intake. Styrene and EB inhaled represent the greatest
Jian Wang et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 107, 1-7 (2013-02-19)
In this work, the structures and normal vibrations of p-difluorobenzene and ethylbenzene in the first excited state have been studied using resonant two-photon ionization spectrum and ab initio quantum chemical calculations. A vibronic spectrum of p-difluorobenzene has been reinvestigated in
Minghui Fan et al.
Bioresource technology, 143, 59-67 (2013-06-20)
Transformation of lignin to ethylbenzene can provide an important bulk raw material for the petrochemical industry. This work explored the production of ethylbenzene from lignin through the directional catalytic depolymerization of lignin into the aromatic monomers followed by the selective
Leigh Henderson et al.
Mutation research, 635(2-3), 81-89 (2007-05-08)
Ethylbenzene is an important industrial chemical that has recently been classified as a possible human carcinogen (IARC class 2B). It induces tumours in rats and mice, but neither the relevance of these tumours to humans nor their mechanism of induction
Ann Kambhu et al.
Chemosphere, 89(6), 656-664 (2012-07-11)
The development of slow-release chemical oxidants for sub-surface remediation is a relatively new technology. Our objective was to develop slow-release persulfate-paraffin candles to treat BTEX-contaminated groundwater. Laboratory-scale candles were prepared by heating and mixing Na(2)S(2)O(8) with paraffin in a 2.25
Jordan Wilson et al.
International journal of phytoremediation, 15(3), 257-267 (2013-03-16)
Numerous studies have demonstrated trees' ability to extract and translocate moderately hydrophobic contaminants, and sampling trees for compounds such as BTEX can help delineate plumes in the field. However, when BTEX is detected in the groundwater, detection in nearby trees
Ethylbenzene.
R von Burg
Journal of applied toxicology : JAT, 12(1), 69-71 (1992-02-01)
Effect of carbon source during enrichment on BTEX degradation by anaerobic mixed bacterial cultures.
Murthy Kasi et al.
Biodegradation, 24(2), 279-293 (2012-08-16)
A comprehensive study on the effects of different carbon sources during the bacterial enrichment on the removal performances of benzene, toluene, ethylbenzene, and xylenes (BTEX) compounds when present as a mixture was conducted. Batch BTEX removal kinetic experiments were performed
E Jindrová et al.
Folia microbiologica, 47(2), 83-93 (2002-06-13)
Several aerobic metabolic pathways for the degradation of benzene, toluene, ethylbenzene and xylene (BTEX), which are provided by two enzymic systems (dioxygenases and monooxygenases), have been identified. The monooxygenase attacks methyl or ethyl substituents of the aromatic ring, which are
Lili Zhang et al.
Chemosphere, 90(4), 1340-1347 (2012-09-11)
A new strain Mycobacterium cosmeticum byf-4 able to simultaneously degrade benzene, toluene, ethylbenzene, and o-xylene (BTE(o-)X) compounds has been isolated and identified previously in our laboratory. We further report here the extent of degradation of every BTE(o-)X component, and unravel
Xuefeng Li et al.
Environmental science and pollution research international, 20(2), 957-966 (2013-01-29)
Aquatic ecosystems are vulnerable to the exposure with petrochemicals such as toluene, ethylbenzene, and xylene (o-, m-, and p-xylene) (TEX) and their adverse effects. Considering the widespread use, occurrence, and high toxicity of TEX, the aim of this work was
Carla G A da Silva et al.
Journal of chromatography. A, 1260, 81-87 (2012-09-12)
Endcapped stationary phases were prepared after thermal immobilization of poly(methyloctadecylsiloxane) (PMODS) onto zirconized and titanized silica supports. These new stationary phases have lower densities of residual hydroxyl groups, according to infrared spectroscopy and 29Si CP-MAS NMR and as shown by
Abby A Li et al.
Neurotoxicology, 31(3), 247-258 (2010-02-23)
The potential for neurotoxicological and immunotoxicological effects of ethylbenzene was studied in young adult Crl:CD(SD) rats following 90-day oral (neurotoxicity) or 28-day inhalation (immunotoxicity) exposures. In the neurotoxicity study, ethylbenzene was administered orally via gavage twice daily at 0, 25
Jie Ma et al.
Current opinion in biotechnology, 24(3), 457-466 (2012-09-29)
Fuel releases that impact groundwater are a common occurrence, and the growing use of ethanol as a transportation biofuel is increasing the likelihood of encountering ethanol in such releases. Microorganisms play a critical role in the fate of ethanol-blended fuel
Dânia Elisa Christofoletti Mazzeo et al.
Chemosphere, 90(3), 1030-1036 (2012-09-18)
The BTEX (benzene, toluene, ethylbenzene and xylene) mixture is an environmental pollutant that has a high potential to contaminate water resources, especially groundwater. The bioremediation process by microorganisms has often been used as a tool for removing BTEX from contaminated
Yacine Kerchich et al.
Journal of the Air & Waste Management Association (1995), 62(12), 1370-1379 (2013-02-01)
The study presents the levels of air pollution by aromatic organic compounds BTEX (benzene, toluene, ethylbenzene, o-, m-, and p-xylenes) in the city of Algiers. The sampling was carried out using Radiello passive sampler. Three sampling campaigns were carried out
Rogers Ribeiro et al.
Biodegradation, 24(2), 269-278 (2012-08-23)
Because benzene, toluene, ethylbenzene, and xylenes (BTEX) and ethanol are important contaminants present in Brazilian gasoline, it is essential to develop technology that can be used in the bioremediation of gasoline-contaminated aquifers. This paper evaluates the performance of a horizontal-flow
Daniel Knack et al.
Applied and environmental microbiology, 78(18), 6475-6482 (2012-07-10)
Ethylbenzene dehydrogenase (EbDH) catalyzes the initial step in anaerobic degradation of ethylbenzene in denitrifying bacteria, namely, the oxygen-independent hydroxylation of ethylbenzene to (S)-1-phenylethanol. In our study we investigate the kinetic properties of 46 substrate analogs acting as substrates or inhibitors
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