air sampling design Articles

  • Building Services Management - Air Sampling -

    Untitled Document Maintenance professionals are often the first responders to mold complaints in their facilities. building occupants can be exposed to fungal (mold) ...


    By EMSL Analytical, Inc.

  • Air Sampling During NPP Accident

    There has been considerable interest recently generated regarding emergency air sampling protocols as a result of the Fukushima accident in Japan. A major concern involving air sampling requirements is the accurate determination of gaseous-radioactive iodine species emitted from the NPP to the environment as a result of an accident. During normal NPP operation gaseous radioactive iodine ...

  • Designing and Implementing Perimeter Air Monitoring Programs

    Perimeter or fenceline ambient air quality and meteorological monitoring programs have become increasingly valuable at hazardous waste, landfill, dredging, ports, and MGP remediation sites. Air quality monitoring programs protect public health and reduce owner liability ...


    By AECOM

  • Is the Rotameter Ready for Retirement in Air Sampling/Monitoring Applications?

    The variable area rotameter has been the primary tool utilized for determination of flowrates passing through the air circuitry pathway of air sampling or air monitoring systems for many years. In air sampling applications a pollutant is captured on a collection medium (filter paper, charcoal cartridge, etc.) and taken to a laboratory for determination of the quantity of pollutant on the ...

  • Reducing NOx in Diesel Emissions | Spectroscopy Solutions

    Air pollution and NOx emissions from diesel engines are a global concern due to their potential impacts on human health. Researchers worldwide are developing new and improved methods to reduce NOx emissions. Infrared spectroscopy in the gas phase, which is made possible using FTIR gas cells from Specac, has an important role to play in this ...


    By Specac Limited

  • Analysis of Stack Emissions Using VOST Air Sampling Tubes and Capillary GC

    United States EPA SW-846, Method 0030, Volatile Organic Sampling Train (VOST), describes the sampling of emissions for volatile compounds from hazardous waste incinerator stacks. Supelco's VOST air sampling tubes are designed to fulfill the method requirements and provide low background levels.               ...


    By MilliporeSigma

  • Teledyne Scientific Instruments - Direct Sampling MS and MS/MS for Real Time Air Monitoring

    Presented at the 44th ASMS Conference on Mass Spectrometry, May 12-16, 1996 Portland, OR. Published in the Proceedings of the 44th ASMS Conference on Mass Spectrometry May 12-16, 1996 Portland, OR, in press. DIRECT SAMPLING MS AND MS/MS FOR REAL TIME AIR MONITORING C. Remigi, P.T. Palmer, Dept. of Chemistry & Biochemistry, SF State University, SF, CA ...


    By Environics, Inc.

  • Use of Diaphragm pumps in Sampling systems

    INTRODUCTION Sample system design can take many forms, influenced by factors including cost, size, maintenance, source conditions, and analyzer requirements – to mention a few. The following discussion takes into account the operating characteristics of a diaphragm pump, and choices that will improve system performance, reduce measurement errors, and lower pump maintenance. Illustrated below are ...


    By Air Dimensions Inc

  • Sampling of Carbonyls Using a Dual-Layer LpDNPH Glass Sampling Tube and HPLC Analysis

    The dual-layer LpDNPH sorbent tube is an air sampling device designed for sampling carbonyls (e.g. formaldehyde) in ambient, indoor, and industrial atmospheres. Carbonyls are trapped on our high-purity silica gel adsorbent coated with 2,4-dinitrophenylhydrazine (2,4-DNPH) where they are converted to stable hydrazone derivatives. The derivatives are eluted from the tube in acetonitrile and ...


    By MilliporeSigma

  • Setting the standards for headspace sampling by PID

    The responsiveness of PIDs to virtually all VOCs has seen them become the accepted tool for initial site entry assessment, ensuring optimal detection of unknown and often toxic or hazardous chemicals found at hazardous waste sites and chemical emergencies. The speed and accuracy of modern PID equipment means that many worker and community safety concerns during initial and ongoing operations can ...


    By Ion Science Ltd.

  • Rikers Island UST design & environmental services

    Design and Permitting of the upgrade fourteen (14) underground diesel & No. 6 fuel oil storage tanks with a combined tankage of over 540,000 gallons for a Major Oil Storage Facility. Project includes subsurface investigation, installation of soil borings, groundwater monitoring wells, non-destructive ultrasonic and volumetric tightness testing of tanks, tank design rehabilitation including ...


    By GEA Engineering PC

  • Casella intrinsically safe TUFF personal air sampling pump and dBadge sound level meter are a hit down under with Australian department of defence

    Following a competitive tender process, the Australian Department of Defence has taken delivery of 180 TUFF personal air sampling pumps and 180 CEL-350 dBadge personal noise dosimeters from Casella CEL (www.casellameasurement.com; 01234 844100), leading global specialist in industrial hygiene and occupational health monitoring equipment. Ronald Azar, ...


    By Casella

  • Residential Vapor Intrusion Evaluation: Long Duration Passive Sampling v. Short Duration Active Sampling

    Abstract Sampling indoor air for potential vapor intrusion impacts using current standard 24-hour sample collection methods may not adequately account for temporal variability and detect contamination best represented by long-term sampling periods. Mr. Henry Schuver of the U.S. Environmental Protection Agency (EPA) Office of Solid Waste staled at the September 2007 Air & Waste Management ...

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • A Breath of Fresh Air for Your

    As the full effect of the Federal Clean Air Act (CAA) Amendments continue to impact today’s industry, many companies will be required to install new or additional air pollution control equipment.  With over two decades of proven success, catalytic oxidation is a popular method for controlling volatile organic compound (VOC) emissions.During the past 25 years, industry has made progress in ...


    By The CMM Group, LLC

  • Expanding Reservoir Air Filters

    In all vented tanks, the rise and fall of fluid levels is offset by a corresponding volume of incoming and outgoing air. Keeping the incoming replacement air clean is essential for contamination control and thus the reliability of hydraulic systems. While targeting the system's reliability, JLM Systems Limited has developed the OilMiser™ Reservoir Aspirator (ORA) kit. This product represents a ...


    By JLM Systems Ltd

  • Selecting the Right Air Quality Monitor

    There are many types of air quality monitors available, but which one is the best choice for measuring gaseous air pollutant concentrations? There are two classes of such air quality monitors: sampling monitors and in-situ monitors (“in-situ” = “in the original position”). Sampling monitors utilises a manifold through which the air to be analysed is pumped. A small air ...


    By Opsis AB

  • On-site determination of the radon concentration in water: sampling & on-line methods

    Radon in the water dissolves and escapes into the air during household water use, especially when it is heated. An easy-to-handle experimental set up forthe on-site determination of the Radon concentration in water samples has been developed and tested. In contrast to laboratory techniques for Radon-in-water determination such as liquid scintillation counting orgamma-ray spectroscopy, the ...


    By Bertin Instruments

  • Partial Flow Sampling System For Transient Engine Testing

    For on-highway engine manufacturers, meeting model year 2007 emissions levels represents a major measurement challenge. However, future off-road engine emissions testing requirements are anticipated to include not only lower steady-state emissions levels, but also the possibility of using transient cycle data. As a result, engine manufacturers are seeking more cost-effective methods of ...


    By Sierra Instruments, Inc.

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