air cleaning Articles

  • Big Clear Sky – A short history of the Clean Air Act

    Major advances over 50 years have led to cleaner air and groundbreaking technology. The detrimental impact of industrialization to air quality in the United States went unchecked through federal legislation for most of the first half of the 20th Century. But following the 1948 industrial catastrophe in Donora, Pennsylvania – where a cloud of smog killed 20 and injured thousands – regulation of ...

  • GHG regulation under the clean air act – recent developments

    EPA’s GHG Tailoring Rule and Senate Action On October 27, 2009, EPA published the Prevention of Significant Deterioration (PSD) and Title V Greenhouse Gas (GHG) Tailoring Rule in the Federal Register, followed by a 60-day public comment period that ended on December 28, 2009. The proposed rule represents EPA’s effort to decrease the number of sources subject to major source ...


    By Trinity Consultants

  • Estimating the benefits of clean air contingent valuation and hedonic price methods

    This study deals with the estimation of willingness to pay for a 50% reduction of air pollution caused by road traffic in Rabat-Sale (Morocco) using contingent valuation and hedonic price methods. In the CVM, two techniques are employed. These are iterative bidding and dichotomous choice. Both empirical analyses are based on the same set of individuals. This strategy enables us to compare the ...


    By Inderscience Publishers

  • Bottom line on regulating greenhouse gases under the clean air act

    How can the EPA regulate GHGs? Doesn’t the Clean Air Act only apply to air pollutants? An April 2007 Supreme Court decision (Massachusetts v. EPA) ruled that GHGs are air pollutants under the Clean Air Act. The court instructed the EPA to decide whether GHG emissions endanger public health and/or welfare, or if current science is too uncertain to make a reasonable judgment. In response to the ...

  • Regulation of greenhouse gases under section 115 of The Clean Air Act

    Section 115 of the Clean Air Act, among the various options under the current act, may offer EPA the most effective, flexible, economically reasonable, and legally supportable means by which to regulate greenhouse gas emissions. The authors argue that Section 115, the section explicitly crafted to address international air pollution, has the potential to provide an appropriately flexible path ...


    By Bloomberg BNA

  • Case Study N°I1 – Industrial Applications – Air Analysis i n Clean Air Room

    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

  • TopAir’s Clean bench

    The clean bench is a mainstay of TopAir’s superior line of cleanroom equipment for all requirements of the biomedical, electronic, semi-conductor and defense industries. TopAir is the flagship brand of Statitech Ltd., a leading provider of cleanroom furniture and accessories since 1999. Besides the clean bench, TopAir’s premium line includes fume hoods, desiccators, weighing stations ...


    By TopAir Systems

  • Radioactive Clean-up

    Radioactive, nuclear, or radiation clean-up is considered as the most dangerous, difficult, and costly remediation activity after a nuclear disaster or accident.  The contamination may be found in the air, water, and soil, as wells as equipment and buildings (USEPA, 2010). Radioactive material is unstable, while the nuclei of radioactive atoms emit ionizing radiation (i.e., alpha ...


    By IWA Publishing

  • Pleatable UPE membrane media in pulse-cleaned dust removal air applications

    Media Selection For initial tests, three media were selected for comparison. These structures are all designed for use in pulse-cleanable cartridges, with processing on blade pleaters. Arioso™ M7001-11 is a Solupor® ultra-high molecular weight polyethylene (UPE) membrane designed for F9/MERV16 efficiency at very low resistance laminated to a 200 gsm, stiff, high permeability ...

  • On-Line Fast Analysis of AMC from ppt to % levels in Clean Air Room

    To ensure people’s safety and a good repeatability of industrial process, near real-time risk management and the continuous monitoring are crucial. In the semiconductor fabrication process, particle control is an essential part. Clean room technology, which relies on the use of HEPA and ULPA filtration, has in the past exclusively focused on the control of micro- and nano-particles. ...


    By Chromatotec Group

  • The Benefits of Green Cleaning

    Did you know that over 100 trillion bacterial cells consider your body their home? It’s true, and they outnumber your regular cells 10 to 1. These tiny guests live in your mouth, nose, and gut and they make up what is known as your microbiome – your highly personalized mini-ecosystem of both good and bad bacteria. The Antibacterial Craze We’ve ...


    By Better Air LLC

  • Radioactive Clean-up

    Radioactive, nuclear, or radiation clean-up is considered the most dangerous, difficult, and costly remediation activity after a nuclear disaster or accident.  The contamination may be found in the air, water, and soil, as wells as equipment and buildings (USEPA, 2010).Radioactive material, unlike most matter, is inherently unstable. Over time, the nuclei of radioactive atoms emit what's ...


    By IWA Publishing

  • Clean goes green

    Her daughter's eyes were pink and puffy. The child's nose was scratchy and runny. Nancy Figueroa of Jamaica Plain did everything she could to make her daughter well: She bought one medicine after another; did more wash than a 24-hour laundromat; gave to charity her daughter's stuffed animals that might be carrying dust, including the little monkey that young Katherine clung to for comfort. Still ...

  • Are Probiotics The Future Of Cleaning?

    Given the choice between a cleaner that reduces germs by 86% and one that all but eliminates them at 99.9%, which one would you choose? If you’re like most people, the answer appears simple – get rid of as many germs as possible. But those nearly 100% effective cleaners aren’t necessarily the best choice. Why? Because they kill all germs, good and bad. Probiotics are ...


    By Better Air LLC

  • Betting on the Clean Economy

    British Columbia and three Pacific Coast states in the U.S. are counting on clean energy, clean technology and a 'green' economy to grow prosperity and jobs, political leaders told GLOBE 2012's opening plenary. However, increasing global demand for energy will also drive continued fossil energy development including Alberta's oilsands, which provides huge economic benefits, a ...


    By GLOBE SERIES

  • Research Papers: Air Bubbles enhance membrane cleaning: a future perspective - Case Study

    Click here for the full dowloadable paper.  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 ...

  • Influence of permeation on air/water cleaning of spiral wound membrane NF/RO elements

    To improve hydraulic conditions, periodic air/water cleaning (AWC) is applied to a nanofiltration (NF) spiral wound membrane (SWM) element under permeation conditions to control biofouling and particulate fouling. A pilot study was carried out for 212 days with a vertically positioned SWM element fed by tap water enriched with a biodegradable compound (60 μg acetate-C l−1). Operational parameters ...


    By IWA Publishing

  • Effects of UV Ozone for air room and deep cleaning disinfection purposes Version:1.0

    According to the EPA and American Medical Association (AMA), studies indicate that indoor levels of many pollutants may be 25 times and occasionally more than 200 times higher than outdoor levels. While older buildings present the issue of a large buildup of contaminants over time, today’s buildings are built so air tight that the health risks may be even greater. According to the EPA, ...

  • Preparing for Clean Air Act Section 114 Requests: Procedures of Internal PSD Auditing

    This paper contains a detailed procedure for approaching a historical New Source Review/Prevention of Significant Deterioration (NSR/PSD) audit which was derived from the experiences of PSD auditors in the pulp and paper industry. This procedure uses a two-tiered screening approach to identify those projects which may have required NSR/PSD review and culminates in the preparation of an audit ...


    By Trinity Consultants

  • Clean air ensured – Off gas monitoring in mineral wool production – Case Study

    The customer The customer is one of the world’s leading producers of mineral wool – a material that improves the quality of life for millions of people and helps to alleviate environmental problems, such as the greenhouse effect, smog and acid rain. Mineral wool insulation gives us pleasant indoor environments by keeping out the freezing cold. In hot climates, stone wool ...

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