viable air Articles

  • Interhemispheric transport of viable fungi and bacteria from Africa to the Caribbean with soil dust

    Daily aerosol samples collected in trade winds at Barbados, West Indies, throughout 1996–1997 yielded significant concentrations of viable (culture-forming) bacteria and fungi only when African dust was present. Air masses from the North Atlantic, North America, and Europe yielded no cultivable organisms. The strong association of cultivable organisms with African dust suggests various factors ...


    By Springer

  • Selecting an Air Sampler for Bioaerosol Collection

    Indoor Air Quality (IAQ) investigators should select cost effective, efficient and the highest quality samplingequipment for evaluation of indoor environments. Particle impaction onto an adhesive surface (non-viable) or into culture media (viable) are the most widely used techniques to evaluate the presence and levels of airborne bioaerosols, particularly in non-industrial indoor environments. ...

  • Passive samplers for air quality monitoring in a Brazilian university

    The aim of this paper was to evaluate the applicability of passive samplers for the monitoring and diagnosis of air pollution at Passo Fundo University, focusing on atmospheric pollutants NO 2 and O 3 . The samplers were built in accordance with already verified methodologies and were placed in several locations in the university campus, namely: energy generator, pool heating boiler, ...


    By Inderscience Publishers

  • Building Services Management - Air Sampling -

    Untitled Document Maintenance professionals are often the first responders to mold complaints in their facilities. building occupants can be exposed to fungal (mold) ...


    By EMSL Analytical, Inc.

  • How industrial air-cooled chiller rentals benefit you

    Summer will be here before you know it and with it will come soaring temperatures. Few other states know heat and humidity like the southern states, and going without cool air is simply not an option for their hardworking residents. For the people in these states, an industrial air-cooled chiller is a useful and viable option to keep ...

  • Sources of Particles in Cleanrooms

    Viable particles consists of bacteria, virus, fungal spores, molds, and yeast.  These are generally obtained from people, outside air, water, equipment, tools, excipients, and active ingredients. The objectives of environmentally controlled cleanrooms are to provide a contamination-free space to test or manufacturer contamination free products.  Nonetheless, contamination has a way of ...


    By Climet Instruments Company

  • The challenges and benefits of local air quality monitoring

    A new generation of air quality monitors is now being offered to provide localised, real-time air quality readings – but the potential benefit is only just starting to be realised. It is generally accepted that whilst measurements from air quality reference stations are highly accurate, they are not sufficiently location-specific. Key pollutants – such as NO2 and PM2.5 ...


    By AQMesh

  • Thermal deoilers - Thermal deoiling of evaporator coils for air conditioners

    The Problem A major Air Conditioning company was mandated to have an alternate technology for degreasing evaporator fins. They had, until recently, been deoiling metal parts in a conveyorized solvent based vapor degreasing line, but the state environmental agency mandated that the line be shut down on a certain date due to the excessive water and air pollution it generated. The company ...


    By Epcon Industrial Systems, LP

  • 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

  • Side by Side Comparison of the Aerotrap Total Fungal SamplerTM

    ...with Grease Slides, the Aerotrap Total Fungal SamplerTM with Glyceryl Triacetate Cleared Mixed Cellulose Ester Membrane Filter Slides and the Zefon Bio-PumpR using the Zefon Air-O-CellR. ...

  • Solar photocatalytic degradation of azo dye Reactive Black 5 in aqueous suspension of TiO2

    Photocatalytic degradation of pollutants under solar light irradiation is an economically viable process and a very promising clean wastewater treatment technology. The aim of this study is to evaluate photocatalytic degradation of Reactive Black 5 (RB5) under natural sunlight irradiation with TiO2 as photocatalyst. The effects of initial concentration of RB5, dosage of TiO2, with/without solar ...


    By IWA Publishing

  • Exergoeconomic optimisation of an aqua-ammonia absorption refrigeration system

    Optimisation of thermal systems is generally based on thermodynamic analysis. However, the systems so optimised are often not viable due to economic constraints. In this paper, an attempt is made to minimise the overall operation and amortisation cost of an aqua-ammonia vapour absorption refrigeration system for air-conditioning application using the theory of exergetic cost. This simplified ...


    By Inderscience Publishers

  • A mixed-integer non-linear programming model for CO2 emission reduction in the power generation sector

    Electricity generation is considered to be one of the main contributing sources to the air pollution problem. It is, therefore, important to develop and implement effective control strategies to prevent the expected abrupt increase in emissions from this sector. Any control strategy must be suitable for local implementation and must also be economically viable. The main objective of this paper is ...


    By Inderscience Publishers

  • Reconciling technological viability with social feasibility: the case of natural pozzolans for sustainable development

    Appropriate technologies can meet the basic needs of the poor by providing cost-effective, environmentally friendly solutions to socio-economic dilemmas. Natural pozzolans have the potential to make development more sustainable by lowering building costs and reducing pollution. However the social context of sustainable development constrains technological solutions. These solutions may seem ...


    By Inderscience Publishers

  • Growing water shortages, air & water pollution challenge US to take a sustainable approach to the environment

    With 36 states expected to experience moderate to extreme water shortages by the year 2013, the time has come for the United States to rethink its approach to the treatment, storage and reuse of water on a residential, industrial, and municipal level, according to Bord na Móna Environmental Products U.S. Inc. President Shane Keaney. “The aging United States water treatment infrastructure now ...


    By Anua - Bord na Móna Limited

  • Dust Suppression With Gravelpave2

    Use of Gravelpave2 for pavement surfaces to restrict dust is a very viable suggestion, provided careful selection of the fine gravel fill is followed. Dust from gravel surfaces is created when vehicles pass over the surface - greater speed = greater dust and higher into air. Most gravel surfaces will have a wide range of particle sizes - from 1" to <200 screen (clay and silt sizes) or "dust". ...


    By Invisible Structures, Inc.

  • Corrosion-Resistant PVC Sends Metal Pipe Down the Drain Case Study

    Drain, Waste and Vent (DWV) systems are necessary in every building for removing sewage and storm water from a variety of fixtures and regulating air pressure to facilitate flow. Pipes used in traditional DWV systems for commercial buildings due to code restrictions have long been made of copper and heavy cast iron. However, performance has often been an ...


    By IPEX, Inc.

  • A novel atmospheric freeze-drying system using a vortex tube and multimode heat supply

    This article presents results of an experimental study of (AFD); atmospheric freeze-drying which uses a vortex tube to produce low temperature air, as an alternative to vacuum freeze-drying (VFD). An experimental setup was designed and built to permit simultaneous application of convection, conduction and radiation heat input to the drying material without heating it above the freezing point of ...


    By Inderscience Publishers

  • In Situ Bioremediation of Chlorinated Solvents: A Case Study

    In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon. Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride. In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source areas. Subsequent stimulation of in ...


    By EOS Remediation, LLC

  • In Situ Bioremediation of Chlorinated Solvents

    ABSTRACT: In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon.  Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride.  In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source ...


    By EOS Remediation, LLC

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