air contaminant Articles

  • Occupational Airborne Hazards and the Importance of Proper Respiratory Protection

    Each year, the United States Occupational Safety and Health Administration (OSHA) publishes a preliminary list of the 10 most frequently cited safety and health violations for the fiscal year.  It is comprised and compiled from thousands of workplace inspections conducted by federal OSHA staff from across the country.  Most years, one of the top 10 cited violations involves respiratory ...


    By Cochrane & Associates, LLC

  • The Phase 1 Environmental Assessment

    In today’s world where every property is subject to potential environmental risks a Phase 1 Environmental Site Assessment or ESA is an appropriate action to take. An ESA can help determine if the property has been contaminated by previous or current activities. The ESA can help protect the purchaser of a property from environmental risks prior to the closing on a property.  Lenders ...

  • Treating drinking water with 99% removal - Case Study

    QED E-Z Tray® Air Stripper Treating Drinking Water with 99% Removal in Cedarburg, Wisconsin In October 2011, the Cedarburg, Wisconsin Light and Water Utility installed a QED E-Z Tray® (U.S. Patent Number 5,518,668) Air Stripper in a discreet addition to their existing production pump building. The E-Z Tray 72.6 handles a flow rate of ...


    By QED Environmental Systems

  • E-Z Trays an Integral Part of Levelland`s Groundwater Treatment - Case Study

    QED E-Z Tray® Air Strippers an Integral Part of Levelland's Groundwater Treatment System The refinery at the former Motor Fuels Corporation produced all grades of gasoline, tractor fuels, diesel, distillate products, and fuel oils. It closed in 1954 after 15 years of operation, and the refinery equipment was removed by 1958. The property has since been redeveloped, but the ...


    By QED Environmental Systems

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • Importance of Inspecting Reservoirs

    Inspecting Reservoirs – what is the importance of them, why they are inspected, and how ROVs help pave the way for low-cost, regular maintenance. What is a Reservoir? Deriving from the French word réservoir meaning “storehouse,” a reservoir is exactly that – a storage place for water. More often than not, these bodies of water are ...


    By Deep Trekker Inc.

  • 10 Reasons why you should continuously monitor low temperature and liquid chemical sterilants for worker safety

    1. Sterilant chemicals are highly toxic Low temperature and liquid chemical sterilants are designed to kill all microorganisms including resistant spores and if they were not toxic, they would not be effective in sufficiently high concentration to destroy all microbial life including the chemically resistant sporicidal forms of certain ...


    By ChemDAQ, Inc.

  • TCE contamination of the groundwater - Altus air force base

    LOCATION:  Altus Air Force Base, OklahomaPROJECT DATE:  November 2001 to presentCLIENT:  Air Force Center for Environmental Excellence (AFCEE) BACKGROUND: TCE contamination of the groundwater was found at the Altus AFB Site SS-17 at a depth of 7 to 20 feet below ground surface. The aquifer at Altus AFB consists unconsolidated fine-grained alluvial deposits, primarily clay, overlying a fractured ...


    By Terra Systems, Inc. (TSI)

  • Vegetation: A source of air fungal bio-contaminant

    Airborne fungal counts and types were examined in three selected regions in Egypt. Two of the sampling sites are rural areas, one cultivated with chamomile and the second with vegetable. The third site is located in an urban area. A sedimentation method was used to isolate airborne fungal spores. Airborne fungal spore counts averaged 71\pm 19, 64\pm 14 and 175\pm 79 cfu/p/h in the urban, ...


    By Springer

  • Bioremediating Explosives Contaminated Soil

    From the beginning of World War II until the 1970s, the site that is now the Naval Surface Warfare Center in Crane, Indiana (NSWC-Crane) was the home of a major bomb manufacturing operation. Explosive compounds such as TNT, Royal Demolition Explosives (RDX) and Her Majesty’s Explosive (HMX) were handled loose and drifted through air vents. Often, the material settled on the roofs of buildings, ...


    By BioCycle Magazine

  • Effects of UVGI filtration on indoor air contaminants and HVAC systems

    Proprietary High Intensity UVC (Germicidal 254 nm) Mercury Vapor Quartz Lamps designed to prevent and destroy mold and other microbial growth on the A/C coil and eliminate biological contaminants and chemicals in the air. Ultraviolet light destroy biological & chemical contaminants TOMIES proprietary High-Intensity Mercury Vapor Quartz Lamps produce UVC and UVV (both ...

  • Indoor Air as a Source of VOC Contamination in Shallow Soils Below Buildings

    US EPA and many state regulatory agency guidance documents recommend below foundation vapor sampling as a key element of site investigations to determine if vapor migration from underlying soil into buildings is a completed exposure pathway (USEPA, 2002; WIDHFS, 2003; San Diego County, 2004; PADEP, 2004). If volatile organic compounds (VOCs) are detected below the building foundation, then VOC ...


  • Air as a source of bacterial contamination in a slaughterhouse prior to implementation of hygienic control systems

    The shelf-life, quality and safety of meat can be reduced by bacterial contamination. The limited study of airborne bacteria often means that their impact is overlooked. This research assessed the role of airborne bacteria in the contamination of carcasses during processing in a slaughterhouse prior to implementing hazard analysis and critical control point (HACCP). Aerosolised bacterial counts ...


    By Inderscience Publishers

  • Water contamination problems solved at automobile air bag manufacturing plant

    The Facility Based in a Rocky Mountain state, this facility produces the sodium azide pellets contained inside the air bags for automobiles produced throughout the world. The Problem During the manufacturing of the air bag propellent, frequent equipment washdowns produce large volumes of wastewater that contain sodium azide and metal sulfide salts. Sodium ...

  • Groundwater contaminated with chlorinated solvents - Air force center for environmental excellence

    LOCATION:  Dover, DelawarePROJECT DATE:  October 1999 to presentCLIENT:  Air Force Center for Environmental Excellence (AFCEE) BACKGROUND: Groundwater contaminated with chlorinated solvents is a common problem to many US Air Force Bases. TSI in conjunction with Solutions Industrial & Environmental Services (Solutions-IES) of Raleigh, NC approached AFCEE with an innovative method utilizing ...


    By Terra Systems, Inc. (TSI)

  • Air contaminants modelling by use of several receptor-oriented models

    Two data sets were apportioned by the use of several models (chemical mass balance (CMB), principal components analysis-absolute principal components scores (PCA-APCS), positive matrix factorisation (PMF) and UNMIX). Source apportionment were results derived from the CMB modelling applied to the data from Vienna point traffic source, paved road and crustal dust as the dominant contributors to the ...


    By Inderscience Publishers

  • Ultrafine particle and gas contamination of urban air in Seoul, Korea, during winter

    To investigate the contamination characteristics of ultrafine particles and gases originating from vehicle exhaust, data were obtained from one-week intensive monitoring at an urban site in Seoul, Korea during the winter of 2003. The diurnal variations of size-segregated particle concentrations for both ultrafine particles (20?100 nm) and accumulation mode particles (100?600 nm) were very ...


    By Inderscience Publishers

  • Biological Removal of Ammonia from Contaminated Air Streams Using Biofiltration System

    ABSTRACT Ammonia is a colorless, toxic, reactive and corrosive gas with a sharp odor. It is irritating to the skin, eyes, nose, throat, and lungs. Ammonia gas occurs in the environment naturally and is emitted by many industries and, therefore, its control is essential. Biofiltration is a new emerging technology that is being used as a control procedure. This study evaluates the use of a ...

  • Air pollution and odour control treatment plant of contaminated air during industrial drums and package remediation process

    Customer EuroVeneta Fusti srl is an italian market leader in industrial drums and package recovery, remediation and reuse. Sited in Triveneto, in Mira next to Venice, EuroVeneta Fusti operates old drums collection, processing, regeneration and new ratification of industrial packages (such as ...


    By F.G.M. engineering srl

  • Asbestos contaminated soil removal - Glasgow

    Asbestos Contaminated Soil Remediation Client: Hawkshead Properties Ltd Challenge: Removal of asbestos contaminated demolition material adjacent to residential housing and canal. Monitor air borne dust particulates and swab cleaned surfaces to validate target levels. Backfill excavations and make safes vertical drops. ...


    By Soilutions Ltd

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