benzene detection Articles

  • Detecting benzene in refinery atmospheres

    Summary Benzene remains an important industrial chemical, but is well known as extremely hazardous and recognised as a carcinogen. Legislation across the globe has been put in place to ensure exposure of benzene at plants where it is produced is minimised. Modern PID instruments offer the means to monitor benzene concentrations down to lOppb or better. ...


    By Ion Science Ltd.

  • Detecting Benzene in a Refinery environment

    Why you need to take Benzene seriously Benzene remains an important industrial chemical, but is well known as extremely hazardous and recognised as a ca rcinogen. Legislation across the globe has been put in place to ensure exposure of Benzene at plants where it is produced is minimised. Modern PID ...


    By Ion Science Ltd.

  • Isolation and characterization of alicycliphilus denitrificans strain bc, which grows on benzene with chlorate as the electron acceptor

    A bacterium, strain BC, was isolated from a benzene-degrading chlorate-reducing enrichment culture. Strain BC degrades benzene in conjunction with chlorate reduction. Cells of strain BC are short rods that are 0.6 µm wide and 1 to 2 µm long, are motile, and stain gram negative. ...

  • Fixed, Portable or Personal Monitoring for Benzene Detection

    Fixed, portable or personal monitoring for benzene detection?  Applications for PIDs include:- fixed systems for area or fenceline monitoring of fugitive emissions portable instruments for con ned space entry checks or leak detection & repair ...


    By Ion Science Ltd.

  • Emission of volatile organic compounds from solid waste disposal sites

    The emission of volatile organic compounds (VOCs) from a solid waste disposal site for municipal solid wastes was quantified. The VOCs contained in the landfill gas taken at the site were benzene, toluene, xylenes, ethyl benzenes, and trimethyl benzenes, while the concentrations of chlorinated compounds were very low. The concentration of benzene in the landfill gas samples ranged from below the ...


    By SAGE Publications Ltd

  • Using PID for Benzene detection

    Rather than having to rely on human senses in a workplace setting it is advisable to use an appropriate form of quantitative monitoring; indeed the onus is on the employer to do the risk assessment.  Remembering the old adage attributed to Lord Kelvin that you can’t manage what you ...


    By Ion Science Ltd.

  • The benzene problem: impact of three-way catalyst technology: potential for further improvement

    Chemical ionisation mass spectrometry (CI-MS) was applied to study the benzene emission characteristics of a TWC-vehicle at a time resolution of one Hertz. Three important operating conditions with increased emissions were identified: at vehicle start; at extended stop-and-go situations; and whenever a catalyst-induced benzene formation occurs. The cold start influence was detectable for about ...


    By Inderscience Publishers

  • The facts about Benzene exposure

    Benzene and Benzene exposure  Today, we look some more at benzene and more importantly benzene exposure. Benzene evaporates easily and most people can detect its distinctive smell at concentrations between ...


    By Ion Science Ltd.

  • In addition to formaldehyde, decoration, what harmful gases?

    As the saying goes, clothes can make people more beautiful, in fact, the house is the same, when you buy a house, and give it a beautiful coat, can improve the quality of life, living in the house for a long time, re decoration, the old house and get a new life. However, the decoration pollution problem has become a lot of people's heart disease. Today we are going to talk about the ...

  • EPA Region 9 Case Study (In Situ Gas Thermal Remediation (GTR™))

    In Situ Thermal Remediation was used to successfully treat benzene, TPH-d, TPH-mo, BaP, and Naphthalene from a former gas plant in EPA Region 9. Gas Thermal Remediation (GTRTM), using Thermal Conductive Heating (TCH), raised the temperature of the soils in the treatment zone of the former MGP site to an average temperature of approximately 325 degrees Celsius.  The COC(s) identified at the ...

  • PID monitors for aromatics and benzene in petrochemical environments

    Introduction Aromatic chemical compounds produced by oil refineries and petrochemical plants form the building blocks for numerous important materials, including dyes, detergents, solvents, adhesives, plastics, synthetic rubbers and pharmaceuticals. But the aromatic compounds produced in these environments, such as benzene, toluene and xylene isomers are also highly toxic. Benzene is a critical ...


    By Ion Science Ltd.

  • PetroSense hydrocarbon sensors and their applications

    The increasing concern about hydrocarbon contamination of process water and produced water has created an increasing need for in-situ, real time, and accurate low cost instrumentation that can provide rapid detection and easily usable in the field. PetroSense sensors [1,2] represents “best in breed” technology for the detection of total petroleum hydrocarbons (TPH). PetroSense sensors ...


    By PetroSense, Inc

  • Case study: EPA region 9

    ISTR Overview Neighborhood: Industrial Heating Tubes: 14 Target Temp: 325 ˚C Heating Period: 130 Days Target: 0.9 mg/kg for Benzene Contaminant: TPH-d TPH-mo Benzene Naphthalene BaP Geology: ...

  • Odorous volatile organic compound (VOC) emissions from ageing anaerobically stabilised biosolids

    Opportunities for the beneficial re-use of biosolids are limited by nuisance odour emissions. Volatile organic compounds (VOCs) from anaerobically stabilised biosolids were measured to identify compounds that could contribute to the overall odour character of nuisance emissions. Flux hood sampling and chemical analysis were used to identify VOCs emitted from biosolids as they were stored in ...


    By IWA Publishing

  • ORC Reduces Benzene to Below Site Goals – The Netherlands

    Site Summary The former gasworks is located in the city of Enkhuizen residing in The Netherlands. Shortly after site activities ceased, the land was redeveloped. A site assessment indicated that the soil beneath a former cellar was contaminated with benzene. The depth of the contamination was estimated at 6 m-bgs (~20 ft), but couldn’t be assessed further due to restrictions caused by debris in ...


    By Regenesis

  • Bioremediation of groundwater at a gas station in PA

    The target compounds detected in the source area wells (MW-1, OW-A, and OW-B) decreased during the eight quarterly sampling events performed since the injection of HydroRemed. These compounds included benzene, ethylbenzene, naphthalene, toluene, 1,2,4-TMB, and 1,3,5-TMB. During the last three quarters (November 2011 to May 2012), the only target compounds 1,2,4-TMB and 1,3,5-TMB, were drastically ...


    By Sarva Bio Remed, LLC

  • What are my workplace benzene exposure limits?

    What are your options for measuring benzene exposure within the workplace Knowing the obligations of legislation and OELs, the question ...


    By Ion Science Ltd.

  • PID Detection: An Ideal Solution to Monitor Benzene

    The photoionisation detector (PID) has proven to be an ideal solution to monitor benzene within the environment. But there are several considerations that must be borne in mind when choosing an instrument. PID theory of operation Figure 1 is a schematic of a typical PID sensor ...


    By Ion Science Ltd.

  • Praxair Selects Baseline-MOCON’s New BevAlert Gas Analyzer To Improve Detection Sensitivity Of CO2 Impurities

    Lyons, CO — Praxair, Inc. has upgraded its carbon dioxide (CO2) gas analysis with the installation of multiple BevAlert™ Model 8900 at its plants across North America and select international locations.The BevAlert Model 8900 new gas chromatograph, from Baseline-MOCON, Inc., a subsidiary of MOCON monitors trace impurities in CO2 (and other gases) while setting new standards for analytical ...


    By AMETEK MOCON - Baseline

  • Degradation mechanism of Methyl Orange by electrochemical process on RuOx–PdO/Ti electrode

    The electrochemical degradation of Methyl Orange in 0.1 M NaCl solution over RuOx–PdO/Ti anode was investigated. Chemical oxygen demand (COD), ion chromatography (IC), Fourier Transform Infrared Spectroscopy (FTIR) and Gas chromatography-mass spectrometry (GC-MS) were employed to detect the intermediates formed during the electrochemical degradation. In the present reaction system, Methyl Orange ...


    By IWA Publishing

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