ambient air instrument Articles

  • Understanding ambient air quality instrument operating ranges

    In order to maximize the performance of an air quality monitoring station, careful selection of instrumentations is essential. One of the key issues is to have a good understanding of what pollutants need to be measured and at what concentrations. There are several different types of air quality monitoring, these include: Trace/Background Monitoring This is performed in areas where ...


    By Ecotech Pty Ltd

  • Pneumatic Focusing Gas Chromatography: A 3-in-1 Continuous, Automated, Ambient-Fence line-Fugitive Emissions Instrument

    This project involved design improvements in both software and hardware, and commercialization of our Pneumatic Focusing Gas Chromatography technology for continuous monitoring of VOCs and Air Toxics and demonstration of its performance in year-long monitoring programs at an EPA Superfund site in Fargo North Dakota and an Oregon Department of Environmental Quality Air Toxics site in Portland ...


    By VOC Technologies

  • Why measuring the ambient NO2 without conversion?

    Nitrogen oxides NOx are pollutants that may have particular impact in terms of greenhouse gases, acidifying air etc ... issuance increased significantly since 1950 with the massive development of transport and industries. It therefore becomes necessary to provide measures always safer these pollutant gases, and to know the reliability of results. Currently, 60% of emissions of NO and NO2 are ...


    By Environnement S.A

  • TDLAS Gas Detection Instrumentation

    PKL Technologies Inc. manufactures tunable diode laser (TDLAS) based gas detectors and monitors. Spectra-1 open path gas sensors are used in a variety of environmental and safety remote sensing applications. Spectra-1 gas sensors have been designed in a compact, easy to use, robust and portable format. Spectra-1 has been developed using proprietary hardware and software, to produce a low cost ...


    By PKL Technologies Inc.

  • Measurement of Toxic and Related Air Pollutants - Field-Emplaceable Air Samplers for Automated Ambient, Site, and IAQ Use (Including TO-17 Applications)

    Abstract Air samples taken on collection media for laboratory analysis remain a highly sensitive and cost-effective means of assessment. However, collection of samples can be difficult using nonautomated samplers, particularly over long terms or at remote locations. This paper describes a number of automated air samplers for sorbent-tube and filter use. The samplers are batterypowered, portable ...


  • Tekran instruments—monitoring around the world

    Tekran provides trace-level mercury analytical and monitoring technology for a variety of applications including laboratory-based sample analysis, continuous point-source emissions and ambient air monitoring. This article focuses on and highlights the results of an application of Tekran’s Ambient Air Mercury Speciation System. In contrast to most other heavy metals, mercury (Hg) and mercury ...

  • General Air Sampling Guidelines (PDF)

    This Standard Operating Procedure (SOP) provides guidance in developing and implementing sampling plans to assess the impact of hazardous waste sites on ambient air. It presents the United States Environmental Protection Agency/Environmental Response Team's (U.S. EPA/ERT's) approach to air sampling and monitoring and identifies equipment requirements. It is not within the scope of this SOP to ...

  • Air Monitoring for the Gulf Oil Spill

    Ambient air monitoring is a priority in the ongoing efforts to contain and manage the oil spill from the Deepwater Horizon in the Gulf of Mexico. The following provides information about the kinds of airborne contaminants that are currently being monitored in the Gulf, how they are collected and how they are analyzed. For a given project, a suitable sampling plan – developed by ...


  • Air pollution – the invisible roadside killer

    The VW emissions scandal has helped to raise awareness of the deadly threat posed by air pollution in many of our towns and cities. In the following article, Jim Mills, Managing Director of Air Monitors, an instrumentation company, explains why diesel emissions will have to be lowered and how the latest monitoring technology will be an essential part of the solution. ...


    By Air Monitors Ltd.

  • 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

  • EPA Regulations Raise the Bar for Industrial Air Quality Testing

    Far-reaching environmental legislation continues to change the way Americans live, work, and run their businesses. For the past ...

  • A Method of Assessing Air Toxics Concentrations in Urban Areas Using Mobile Platform Measurements

    ABSTRACTThe objective of this paper is to demonstrate an approach to characterize the spatial variability in ambient air concentrations using mobile platform measurements. This approach may be useful for air toxics assessments in Environmental Justice applications, epidemiological studies, and environmental health risk assessments. In this study, we developed and applied a method to characterize ...

  • Energy and exergy analysis of an Automobile Heat Pump system

    This study deals with energy and exergy analysis of an Automobile Heat Pump (AHP) system using R134a as the working fluid and ambient air as a heat source. An experimental AHP system consisting of original components from an Automobile Air Conditioning (AAC) system and some extra equipment was developed and instrumented. The system was operated in steady state under various ambient and return air ...


    By Inderscience Publishers

  • Case study - G210 verifies piped medical gases

    Report in the Medical Gas Association newsletter Consultation with medical gas quality controllers (QCs) to optimise specification has lead to, "A major improvement in portable instrumentation for the analysis of medical gases," according to Ed Doyle QC (MGPS). He reported in the August 2010 issue of the Medical Gas Association (www.mga.org.uk) newsletter on his experience with the new ...


    By Geotech

  • FTIR resolution requirements for industrial gas analyzers

    FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epi-treatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D facilities, FTIR is applied to combustion thermodynamics and stack gas emissions; ...


    By CIC Photonics, Inc.

  • The Portable FID for Stack Emissions: lightweight, compact, ergonomic, safe

    POLLUTION S.r.l. manufactures POLARIS FID analyser, a cutting-edge technology for the measurement of total hydrocarbons in ambient air and stack emission monitoring in accordance with EN 13526 and EN 12619. This analyser is based on Flame Ionization Detection (FID), a reference method technique to measure total hydrocarbons (THC, VOC, TOC). Polaris FID is a very handy instrument because it allows ...


    By Pollution Srl

  • Area Monitoring: Diffusion Sampling

    Indoor and outdoor gas hazards that exist in open areas are usually monitored using diffusion-type sensors. A diffusion sensor has no active sample-drawing system; diffusion sensors rely on the ambient air movement and pressure to deliver the sample to the sensing element. Diffusion-type sensors are a reliable and cost-effective way to monitor open area gas hazards. When installing diffusion ...

  • Stack gas VOC monitoring

    POLLUTION S.r.l. manufactures POLARIS FID analyzer, a cutting-edge technology for the measurement of total hydrocarbons in ambient air and stack emission monitoring in accordance with EN 13526 and EN 12619. This analyser is based on Flame Ionization Detection (FID), a reference method technique to measure total hydrocarbons (THC, VOC, TOC). Polaris FID is a very handy instrument because it allows ...


    By Pollution Srl

  • Remote sensing of particulate pollution from space: Have we reached the promised land?

    This paper follows presentation and publication of the Hoff and Christopher 2009 Critical Review and represents an integration of discussants’ views of their paper. The discussants’ comments are organized beginning with a note on the history of satellite sensing, followed with a brief discussion of the strengths and weaknesses of satellite observations relative to air quality management needs. ...

  • Chromatotec Sponsor of the 2015 International Symposium on Polycyclic Aromatic Compounds (ISPAC)

    PAH monitoring being at the core of Chromatotec’s 2015 R&D strategy, it was an evidence for the group to sponsor the annual edition of ISPAC, which took place in Bordeaux from 13 to 17 September. This international conference brought together researchers worldwide and focused on the research of Polycyclic Aromatic Compounds (PACs) on multiple ...


    By Chromatotec Group

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