Results 71 to 80 of about 15,687 (179)

Computationally Efficient Ranking of Sampling Locations by Redundancy in Groundwater Monitoring Networks

open access: yesGroundwater Monitoring &Remediation, EarlyView.
Abstract The long‐term and frequent sampling of groundwater monitoring networks is common practice for monitoring the concentrations of constituents of potential concern (CoPC) over space and time. Sampling can be a costly and time‐intensive process that also incurs health and safety risks. A redundancy‐based ranking of candidate sampling locations can
Peter Radvanyi   +5 more
wiley   +1 more source

Determination of benzene, toluene, ethylbenzene and xylenes in soils by multiple headspace solid-phase microextraction [PDF]

open access: yes, 2004
Multiple headspace-solid phase microextraction (MHS-SPME) is a recently developed technique for the quantification of analytes in solid samples that avoids the matrix effect. This method implies several consecutive extractions from the same sample.
Ezquerro, O.   +7 more
core   +1 more source

Alkylation of Benzene with Ethanol over ZSM-5 Based La–P Catalysts

open access: yesBulletin of Chemical Reaction Engineering & Catalysis
Benzene ethylation in the presence of HZSM-5 zeolites is a promising method for producing ethylbenzene. This study examined the effects of modifying lanthanum and phosphorus as additives to the HZSM-5 catalyst, tested in the temperature range of 300-500 °
Sabit Eyyub Mamedov   +5 more
doaj   +1 more source

Delivering Sulfate to LNAPL Body for Enhanced Source Zone Depletion (ESZD)

open access: yesGroundwater Monitoring &Remediation, EarlyView.
Abstract This field pilot study evaluates the feasibility of applying sulfate to a light non‐aqueous phase liquid (LNAPL) body for achieving enhanced source zone depletion (ESZD) at a refinery site. Two rounds of gypsum land application (GLA) delivered sulfate to an 8000 ft2 area encompassing LNAPL‐containing monitoring wells MW‐2 and MW‐3, while MW‐1 ...
Ravi Kolhatkar   +2 more
wiley   +1 more source

Case study with ethylbenzene.

open access: yes, 2016
Comparing blood concentrations of ethylbenzene (triangle symbols) from rats exposed to 100 ppm ethylbenzene for four hours [29] and simulated blood concentrations of ethylbenzene (solid lines) based on the (A) ethylbenzene PBPK model [58]; (B) xylene ...
Jingtao Lu (1806880)   +12 more
core  

Ethylbenzene Exposure to Cytochrome P450: Does Ethylbenzene Produce Transient Changes in P450 2B Messenger RNA Levels?

open access: yes, 1996
vi, 30 p.The introduction of aromatic hydrocarbons to an organism has been shown to cause the induction of certain cytochrome P450 (P450) isozymes that function to detoxify xenobiotics from the body (Backes, 1993).
Desai, Ketan N.
core   +1 more source

Microbial Strategies for the Degradation of Spent Lubricating Oil: A Comparative Study of Isolate Bacterium and Consortium Cultures

open access: yesWater and Environment Journal, EarlyView.
This show the biodegradation of spent lubricating oil by Bacillus sp. and a marine bacterial consortium. The consortium showed higher growth, biosurfactant production and oil removal efficiency than the isolated strain, highlighting its potential for bioremediation ABSTRACT Spent automotive lubricating oil contains complex hydrocarbons and heavy metals,
Letícia Carvalho Eustaquio Costa   +5 more
wiley   +1 more source

Lattice Oxygen Regulation of Perovskites for Chemical Looping Oxidative Dehydrogenation of Ethylbenzene to Styrene

open access: yes, 2023
The direct dehydrogenation process produces over 90% of global styrene. However, it is hampered by high energy consumption due to equilibrium limitation, a high steam/ethylbenzene feeding ratio, and complicated separation procedures.
Hua Wang   +11 more
core   +1 more source

Effects of vehicle ventilation system, fuel type, and in-cabin smoking on the concentration of toluene and ethylbenzene in Pride cars

open access: yesInternational Journal of Environmental Health Engineering, 2013
Aims: This study aimed to evaluate the concentrations of toluene and ethylbenzene inside the Pride cars and to investigate the effects of the vehicle ventilation system, fule type, and interior smoking on their concentration.
Masoud Rismanchian   +5 more
doaj   +1 more source

Complementary Breath Profiling Using eNose and Gas Chromatography‐Mass Spectrometry for Noninvasive Triage of Indeterminate Pulmonary Nodules

open access: yesMedComm, Volume 7, Issue 10, October 2026.
Flow diagram illustrating participant inclusion and exclusion for the eNose and GC‐MS analyses. Of the 98 prospectively enrolled participants, 79 were eligible for the eNose analysis after the exclusion of 14 participants because of procedural or eligibility issues, four without breath samples, and one without a valid eNose recording.
Waqar Ahmed Afridi   +5 more
wiley   +1 more source

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