hand-held air sampling Articles

  • 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

  • The 10 Key Factors in Selecting a Stack Sampling Firm

    Summary: This document is a summary of the key factors that you should take into consideration when hiring a stack testing firm.This has been prepared in conjunction with the ASTM criteria for standard practice of testing companies.The ASTM criteria has been supplemented, based on 125 years of direct testing experience, which is the combined years of experience of the individuals that contributed ...

  • 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

  • Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory

    ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

  • Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures

    Untitled Document Background The Regional Superfund Ground Water Forum is a group of ground-water ...


    By Solinst Canada Ltd.

  • Can Composting BMPS Reduce Air Emissions?

    Imagine a scenario where all yard trimmings collected for recycling have to be received, processed and composted under the cover of a building. It would be tough for most yard trimmings composting facilities to survive the expense. Yet this situation could have occurred in Southern California. At one point, the South Coast ...


    By BioCycle Magazine

  • EPA studies identify techniques for critical leak testing prior to soil-vapor sampling

    Researchers at EPA’s National Risk Management Research Laboratory (NRMRL) in Ada, OK, are developing quality assurance (QA) measures for soil-gas and sub-slab sampling methods that help differentiate contaminant vapors due to vapor intrusion from background sources. Recent research focused on measures to identify leakage of ambient air into conventional vapor probes, which can significantly ...

  • The challenges and benefits of local air quality monitoring

    A new generation of air quality monitors is now being offered to provide localised, real-time air quality readings – but the potential benefit is only just starting to be realised. It is generally accepted that whilst measurements from air quality reference stations are highly accurate, they are not sufficiently location-specific. Key pollutants – such as NO2 and PM2.5 ...


    By AQMesh

  • Happiness and air pollution: evidence from 14 European countries

    The causal relationship between happiness and air pollution is examined using a sample of 14 European countries. Two sets of results are presented using the notion of Granger causality. For individual countries, the existence of a unidirectional or bidirectional causal structure for almost half of the countries can be observed. The panel approach, on the other hand, provides some support for the ...


    By Inderscience Publishers

  • Composting releases less air pollution than previously thought - study

    A new study funded by the California Integrated Waste Board (CIWMB) indicates that well-managed composting of green waste and food waste releases significantly less air pollution than previously thought. The study also demonstrates that a relatively inexpensive management technique - covering active compost piles with a layer of finished compost - may lower air emissions even further, by as ...


    By BioCycle Magazine

  • Epiphytic lichens on air biomonitoring in Belo Horizonte City, Brazil: a preliminary assessment

    Belo Horizonte is the fifth most populous city in Brazil and there is no data on the level of its atmospheric pollution concerning chemical elements. This study was conducted as a preliminary survey using lichens as biomonitors collected from two parks: Municipal Am?rico Ren? Giannetti, downtown, and Mangabeiras, far from the city centre, a place regarded as not polluted. Epiphytic lichens were ...


    By Inderscience Publishers

  • Air crash investigation using Oxford Instruments handheld analysers - case study

    It was late April 1945 during the last days of World War II for Italy. Just one week before the liberation of Italy from the fascists rule, a group of five Messerschmitt BF 109 planes took off from the Vicenza airbase heading to Ghedi, near Brescia. This was not a combat mission but a transfer flight. Soon after take-off the planes were intercepted by US fighters and attacked. All five planes ...


    By Oxford Instruments plc

  • A Special Issue of the Journal of the Air & Waste Management Association on the Particulate Matter Supersites

    This special issue of the Journal of the Air & Waste Management Association contains 15 peer-reviewed scientific papers from the specialty conference Particulate Matter Supersites Program and Related Studies, which was held in February 2005 in Atlanta, GA. Other peer-reviewed papers will appear in companion issues of the Journal of Geophysical Research, Aerosol Science and Technology, and ...

  • Minimising Risks to Air Quality and Regulatory Compliance With Total Filter Management

    It has been shown in recent studies that as much as 25% of the total site operating budget (excluding raw material costs) for a typical medium-large dosage-form manufacturing facility will be spent on compliance measures for internal quality systems and external regulatory activities. (1) Market realities indicate that the pharmaceutical companies will need to address the overall cost of ...


    By GVS Filter Technology

  • Particle reduction plans in Europe - Implementation of the first Daughter Directive on Ambient Air Quality in Europe

    Untitled Document IMPLEMENTATION OF THE FIRST DAUGHTER DIRECTIVE ON AMBIENT AIR QUALITY IN EUROPE INTRODUCTION AND EXECUTIVE SUMMARY This ...

  • Detect and Monitor Formaldehyde with PPM Technology`s Formaldemeter

    In order to ensure employees and the public are not exposed to dangerous levels of Formaldehyde in the air, it is advised to detect and monitor levels with a suitable detection instrument. PPM Technology has significant experience in the design and development of instruments for accurate detection and measurement of Formaldehyde concentrations in the air. Our Formaldemeter ...


    By PPM Technology

  • Investigation on the spontaneous combustion of refuse-derived fuels

    Refuse-derived fuel (RDF), a high-caloric material, is used by various combustion processes, such as power plants, as alternative fuel. Several explosion accidents, however, possibly initiated by the spontaneous combustion of stored RDF, have been reported in Japan. Therefore the spontaneous combustion of RDF prepared from domestic garbage was investigated using chemiluminescence. RDF samples ...


    By SAGE Publications

  • Detection of chlorpyrifos in soil

    MATRIX: Soil ANALYTES: Chlorpyrifos RANGE OF DETECTION: Chlorpyrifos: 10-500 ppb MATERIALS: Chlorpyrifos RaPID AssayÒ Kit and Sample Diluent. Methanol (pesticide grade). Sample Extraction Kit (call SDI for details0. SAMPLE PREPARATION: Allow frozen samples to thaw. Break up large ...


  • Japanese Organics Recycling Association Formed

    Another backyard composting adage states that compost should have the feel of a wrung-out sponge — damp but not dripping wet. Actually, a wrung-out sponge may be on the dry side for composting, but the analogy does provide a great image for understanding the reasons for balancing moisture. Like a compost pile (or windrow or material in a vessel), a sponge is a solid mass containing an enormous ...


    By BioCycle Magazine

  • TVOC measurement for LEED/green building evaluation

    Total Volatile Organic Compounds (TVOC) may be evaluated when building designers/managers are pursuing the Leadership in Energy and Environmental Design Green Building Rating System for New Construction (LEED-NC) EQ Credit 3.2. The latest LEED-NC guidance document specifies that the maximum allowed concentration of TVOC measured in a building (post construction, pre-occupancy) is 500 µg/m3; the ...


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