Gas Dilution Sampling Articles

  • US EPA airmOzone TESTS

    The US EPA leads Photochemical Assessment Monitoring Stations programs (PAMS) for more than 15 years and many equipments used at PAMS sites are old and need to be replaced. That is why US EPA has conducted a material review of fully automatic GC units able to by analyze the 56 VOC ozone precursors of the PAMS list. They planned to perform an evaluation in two steps : - Laboratory evaluation of ...


    By Chromatotec Group

  • Evaluating Leaks in a Soil Gas Sampling Train

    ABSTRACT The current advisory for active soil gas investigations in California requires leak tests to be conducted at eveiy soil gas probe while taking a sample. A leak may allow ambient ak into the sample train thus diluting the soil gas and underestimating the results. Also, the leak check compound itself may have impurities thereby contaminating the sample. The advisoiy suggests leak ...


    By Eurofins Air Toxics Inc

  • EPA - China case study

    The first online air quality monitoring network for a 27 km2 industrial area The monitored area Situated south of Shanghai, in Zhejiang province Heavily industrialized area Main activity: fine chemicals 10 plants under surveillance, under the authority of the Chinese governmental agency for environmental protection (EPA) ...


    By Alpha MOS Environment

  • In-situ continuous emissions monitoring & regulatory compliance

    As environmental scrutiny has risen and regulation has tightened in recent years, the importance of having accurate information on the environmental performance of your power plant has increased. After all, if you want to manage something, you need to be able to measure it. The analogy is obvious; you wouldn't start a diet without first investing in a set of scales. So it is with Continuous ...

  • Case study - Pharmacuetical Company chooses the QUADRANT NRV Thermal Oxidizer

    Faced with meeting the needs of their Pharma Industry MACT Standards, one Fortune 100 Pharmaceutical Manufacturer called on Catalytic Products International, Inc. The challenge for Catalytic Products International was to design a system that was able to process the ultra-high LEL (high concentration of VOC’s) and deal with corrosive acids produced in the process off gas and the ...

  • Minimizing Operating Costs in VOC Abatement Equipment

    Untitled Document As governmental regulations of environmental emissions become more restrictive, the average concentration of Volatile Organic Compounds (VOC's) has decreased as more ...

  • Sinking Costs

    Today there is more pressure than ever for businesses to minimize costs and increase productivity. Companies are always looking for ways to reduce overall costs. Unfortunately, these efforts are often hampered when a company is faced with an environmental investigation. Regulatory agency requirements, such as determining the full horizontal and vertical extent of contamination in soil and/or ...


  • The NILU tracer gas technique

    A tracer gas technique has been developed by the Norwegian Institute for Air Research (NILU) to study emission rates, dilution and diffusion of gases. The technique has been applied in several countries to quantify diffuse VOC leakages from refineries, petrochemical plants and oil production platforms.  The tracer gas techniqueThe dual tracer gas system developed by NILU has been applied in ...

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