diffusive sampler News

  • Speed is the name of the game as Enviro Technology launches rapid diffusion samplers

    Local authorities and businesses seeking fast, cost effective air monitoring need look no further than air quality monitoring specialists, Enviro Technology’s brand new range of Rapid Diffusion Samplers.   Ideal for all rapid indoor, outdoor, personal and workplace air monitoring of volatile organic compounds (VOCS) and Nitrogen Dioxide, Rapid Diffusion Samplers offer a quick, low ...

  • Diffusive Badges for Personal Exposure Monitoring

    We are the Technology Leader in Personal Monitoring Badges, the most cost-effective and convenient way to monitor chemicals in a worker’s personal breathing zone. We also have Laboratories. AT Labs operates AIHA-accredited labs which provide personal air samplers to industrial hygienists and analyze the contents of returned samplers.  Assay Technology's Miller-Nelson ...


    By Assay Technology, Inc

  • AQMesh can also be scaled using diffusion tubes

    The AQMesh team has carried out a test which shows that calibration (scaling) of AQMesh against one, or ideally several, diffusion tubes, is a viable option when no local reference station is available. When three AQMesh pods and four NO2 diffusion tubes were co-located against a reference station, the diffusion tube readings were so consistent with the reference average reading for the period ...


    By AQMesh

  • Better Remediation Through Effective Groundwater Sampling

    One of the keys to successful remediation of a contaminated property is effective groundwater sampling. A new ASTM standard will aid groundwater samplers by taking a look at three types of passive samplers and their advantages, disadvantages and limitations. The new standard is D7929, Guide for Selection of ...


    By ASTM International

  • Gradko Attending the Air Quality and Emissions Show 2013

    Gradko will be attending the AQE 2013 show in Telford on 13-14th March. This years show is an expansion of the usual MCERTS exhibition to include all aspects of air quality monitoring, allowing visitors to see all the latest technology at one event. We will be exhibiting our full range of diffusion tubes for monitoring of VOCs, NO2, NOx, O3, SO2, Acid ...


    By Gradko International Ltd

  • ASTM D7758 - 11 Standard Practice for Passive Soil Gas Sampling in the Vadose Zone for Source Identification, Spatial Variability Assessment, Monitoring, and Vapor Intrusion Evaluations

    Passive soil gas samplers are a minimally invasive, easy-to-use technique in the field for identifying VOCs and SVOCs in the vadose zone. Similar to active soil gas and other field screening techniques, the simplicity and low cost of passive samplers enables them to be applied in large numbers, facilitating detailed mapping of contamination across a site, for the purpose ...


    By ASTM International

  • Fast uptake Nitrogen dioxide and VOC monitoring using passive sampling techniques - Rapid Air Monitors

    Leading supplier of air pollution monitoring equipment, Gradko Environmental, is pleased to announce the first products in its new range of Rapid Air Monitors. Environmental consultants globally have been looking for faster passive methods of measuring ambient air pollution, particularly for inorganic compounds. Gradko have responded to this market need with the introduction of the Rapid Air ...


    By Gradko International Ltd

  • New addition to air quality armoury from Enviro Technology Services

    An innovative air quality monitoring system has been installed at Bristol’s Old Market, allowing ET and Bristol City Council to compare the device’s performance with existing equipment. Stroud-based Enviro Technology working in partnership with Bristol City Council has installed a TrafficBOx compact Air Quality Monitoring System at Old Market for evaluation purposes. Because the TrafficBOx is ...

  • AQMesh can complement air quality models, reference and indicative data sources

    Leading air quality small sensor system, AQMesh, has recently been shown to work alongside passive samplers and air quality models, as well as complementing reference station networks. A recent study shows AQMesh calibration against diffusion tubes and two 2017 conferences have highlighted the potential of such systems used in an air quality network. At the Dispersion Modellers User Group Meeting ...


    By AQMesh

  • New approaches to measuring metal concentrations in water in Europe

    EU Member States are required to monitor concentrations of metals in surface water in order to comply with regulations laid out under the Water Framework Directive. Current sampling methods may produce uncertain estimates of pollutant levels. A new study provides evidence that combining different sampling techniques can produce more reliable estimates. In 2006, the European Commission issued a ...

  • EPA outlines next steps at the capital city plume site in Montgomery, AL

    EPA will communicate to building owners and the general public the results of indoor air quality and outside soil vapor sampling that took place in mid-August 2011 as soon as those results are available. If warranted by the results of the sampling data, EPA may undertake additional sampling and/or mitigate exposure to contaminants through indoor air utilizing its emergency response ...

  • The Sniffers featuring within Future Refining and Storage Supplement

    Are you fully aware of your storage tank emissions? Is safety your tank farm's first priority? The tank storage terminal world faces multiple challenges nowadays in a world with growing demands for safety, emission values and cost reduction. In specific countries, environmental legislation is adding to the complexity of following best practices and complying with local laws and regulations. If ...


    By The Sniffers NV

  • Estuary research project highlights advantages of continuous monitoring

    Researchers from the south coast of England have established a small network of monitoring instruments in Christchurch Harbour and associated rivers to study the effects of weather events on water quality, and to better understand the magnitude and spatial/temporal variation of macronutrient fluxes - nitrogen (N), carbon (C) and phosphorus (P). The project, which is financed by a Natural ...


    By Xylem Analytics

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