Air Analyses Articles

  • Industrial applications – Air analysis in clean air room - Case study

    Context & Challenges To ensure people’s safety and a good repeatability of industrial process, the analysis of ambient air is crucial. Especially, electronic boards are produced in clean air room by complex lithographic process using very reactive chemicals. The nature and concentration of volatile compounds can be different depending on the chemical process and can also vary ...


    By Chromatotec Group

  • Case study : VOC analysis in ambient air by FID dectection - Complete system airmOzone

    Ozone concentration has been multiplied by 5 in the last century in the middle latitudes of the northern hemisphere from 10 PPB in 1874 to approximately 50 PPB today. This is an increase of 1.6% per year; the trend is probably higher (2.4% a year) over the last decades. (Chapter 1 of the International Geosphere-Biosphere Program - World Climate Research Program) In order to stop this global ...


    By Chromatotec Group

  • Air Conditioning That`s Out of This World

    New materials enhance the cooling effects from outer space to reduce energy use in small- to medium-sized buildings Reducing air conditioning energy use by using new materials to enhance the cooling effects from outer space may not be such a far-out idea. In a simulation study using DOE's Energy Plus software and ...


    By US Department of Energy

  • 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

  • Air Force Welcomes Comments On Red Rock Biofuels Facility Environmental Assessment

    The U.S. Air Force (USAF) Research Laboratory has developed a Draft Environmental Assessment and a Draft Finding of No Significant Impact (FONSI) for the development of the Red Rock Biofuels facility in Lake County, Oregon. The proposed facility is one of three projects awarded a contract under the U.S. Department of ...


    By Bergeson & Campbell, P.C.

  • BREEZE is the market-leading air dispersion modeling software used by environmental professionals around the world

    While most air dispersion modeling is conducted using meteorological data from recent past years and historical or projected emissions data, models can also be used with real-time or short-term forecast meteorological and emissions data to estimate impacts at the present time and in the near future. In order to develop these custom real-time air dispersion modeling and forecasting systems, ...

  • 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

  • Air bubbles enhance membrane cleaning: a future perspective

    Abstract Air bubbles generated using a novel micro-bubble generator have displayed a dramatic enhancement in cleaning efficiency when used in conjunction with specially formulated cleaning chemicals. In order to establish the effect of this application on membrane performance, a series of experiments were conducted using both a flat sheet test rig and a small scale pilot plant. ...

  • Selwood Housing – Case Study

    Project Highlights After a successful tendering process, Envirochem was awarded the contract to provide surveying and analytical services to Selwood Housing. Envirochem are responsible for organising a large number of management surveys of various Housing stock in the relevant timescales. Additional analytical services include bulk analysis ...

  • Study: Stem Cells and Air Quality

    A recent study conducted by researchers at the State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences China, Chinese Academy of Sciences (CAS), and the University of California at San Diego (UCSD) were successful in using stem cells to determine the amount of BPA that caused physiological toxic effects.  The group of ...


    By Ormantine USA Ltd., Inc.

  • Comparative investigation of artificial neural network learning algorithms for modeling solar still production

    Three artificial neural network learning algorithms were utilized to forecast the productivity (MD) of a solar still operating in a hyper-arid environment. The learning algorithms were the Levenberg–Marquardt (LM), the conjugate gradient backpropagation with Fletcher–Reeves restarts, and the resilient backpropagation. The Julian day, ambient air temperature, relative humidity, wind speed, ...


    By IWA Publishing

  • California air resources board held a workshop on the low carbon fuel standard

    On April 3, 2015, the California Air Resources Board (CARB) held a Public Workshop to discuss updates to the California-Modified Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (CA-GREET) Model, version 2.0, under the Low Carbon Fuel Standard (LCFS). The update ...


    By Bergeson & Campbell, P.C.

  • Analysers and next generation SRU control

    The history of on-line process analytics is a relatively short one. Development was driven by the need for process control of high value hydrocarbonbased products. The first on-line analyser applications came during the second war. Rapid development came in the 1970s with the advent of the microprocessor and resultant chemometric techniques. Led by Phillips Petroleum, Union Carbide and Dupont ...

  • EPA Reviews National Ambient Air Quality Standards for Ozone, and Other Recent CAA Developments

    EPA Reviews National Ambient Air Quality Standards For Ozone: On December 17, 2014, the U.S. Environmental Protection Agency (EPA) issued a proposed rule revising the air quality criteria for ozone (O3) and related photochemical oxidants and National Ambient Air Quality Standards (NAAQS) for O3. 79 Fed. Reg. 75234. EPA proposed to revise the primary standard to a level within ...


    By Bergeson & Campbell, P.C.

  • Thermal comfort study of air-conditioned university laboratories

    In tertiary education institutions, good indoor air quality (IAQ) provides a conducive environment for teaching and learning activities. A field study on the environmental conditions and occupants’ comfort was carried out in six laboratories at Universiti Sains Malaysia. The study evaluates the current thermal comfort conditions using objective measurement and subjective assessment. The measured ...


    By Inderscience Publishers

  • A bridge with our customers - Prominence-i (i-Series) - Case Study

    Anthem Biosciences, which is ranked among the top 5 leading Contract Research Organisations (CROs) in India, is emerging as a global leader in the domain of Integrated Pharmaceuticals business. Anthem, which calls itself a Contract Research and Innovation Service Provider (CRISP), offers a whole gamut of services dedicated to enabling and sustaining global research efforts in the discovery of new ...

  • Three Reasons Why It’s Time to Invest in Your Own Air Purity Test Kit

    The costs of hiring someone to test your breathing air lines on site can quickly add up, have you ever considered doing your own tests? The use of breathing masks and compressed breathing air is a vital component of maintaining safety standards on site. The air produced protects workers in spray booths, car body shops and other applications where isocyanate paint mixtures are ...


    By a1-cbiss

  • Evaluation for the reduction and utilisation of coal mine methane emission with AHP method and decision tree

    We used the analytic hierarchy process (AHP) method to construct an evaluation index system for the reduction and utilisation of coal mine methane (CMM) emission. We used the system to evaluate some coal mines in China and other major coal–producing countries. To simplify the process of evaluation, we established an evaluation model based on the evaluation data and on a decision tree. We ...


    By Inderscience Publishers

  • News on Air 2013, Volume 3: Products for Analysis and Quantification

    Welcome to the third volume of our News On Air bulletin. This edition focuses on the often overlooked and neglected, but one of the most crucial steps in the analytical workflow: selecting the correct reagents and analytical reference materials for your application. In this edition, you can get tools to help you select applications for air sampling; find air and emmissions proficiency testing ...


    By Sigma-Aldrich Co., LLC

  • News on Air 2014, Volume 1: Thermal Desorption - Selecting Your Adsorbent Tube

    Thermal Desorption - which tube and which adsorbent do I need? Supelco produces a comprehensive selection of adsorbent tubes. Selection of the proper adsorbent(s) is critical to achieving the best results for a thermal desorption application. An ideal adsorbent tube, such as Carbotrap tubes, will trap and retain compounds of interest for the entire sampling period, then allow total analyte ...


    By Sigma-Aldrich Co., LLC

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