air quality survey Articles

  • Proactive Indoor Air Quality Surveys Save Budgets

    As facility budgets tighten, managers are realizing the many benefits that money spent for proactive indoor air quality is a smart investment. Here is a simple comparison to exemplify the point. Indoor air quality investigations conducted in response to employee complaint or illness clusters cost $3.00 to $10.00 per square foot of space investigated compared to 2 to 10 cents per square foot for a ...

  • 5 Tips for Building Your Company EHS Culture in a Low-Risk Environment

    Environment, health and safety (EHS) programs can do more for your company than simply checking off compliance boxes. EHS can also be an integral part of your company’s culture, demonstrating to employees that their happiness, health and safety is a priority—leading to more productivity and a more proactive approach to minimizing risk. Even in low risk environments, like offices or ...


    By Antea Group - USA

  • Survey highlights the problem of office air pollution

    A new survey has found that indoor air pollution is causing many problems in work places across Britain. The YouGov survey commissioned by the Building Engineering Services Association (BESA) reports that almost 70% of office workers believe poor air quality in their place of work is having a negative effect on their day-to-day productivity and ...


    By Camfil Ltd

  • Pollution survey of carbonyl compounds in train air

    The train is an important vehicle in China, but its air quality has important impacts on passengers’ health. In this work, pollution from carbonyl compounds was measured in the air of six trains. The objectives of this work were to investigate carbonyl compound levels in selected air from trains, identify their emission sources, and assess the intake of carbonyl compounds for passengers. The ...


    By Springer

  • The value of accurate air quality forecasts

    The value of accurate air quality forecasts critically depends upon how the information will be used. This paper proposes a simple model of private firm decision-making under uncertainty to consider potential economic applications and benefits from accurate air quality forecasts. It uses the findings of a survey of employees from five large employers in southern New Hampshire and northeastern ...


    By Inderscience Publishers

  • Benefits of air quality improvement in Klang Valley Malaysia

    The study evaluated the comparative reliability of different question formats of contingent valuation method by resurvey of the same households nine months after their original survey. The test-retest correlations are statistically significant at 1% level. Comparative reliability of different question formats has been tested comparing the test-retest correlations of these methods. This test has ...


    By Inderscience Publishers

  • Indoor air quality and mold case study

    Service(s) performed: Indoor air quality and mold management services Summary: EFI Global has provided indoor air quality and asbestos abatement services to numerous school districts and universities nationwide. At a public educational system with 7 campuses totaling over 5 million square feet, our environmental professionals performed comprehensive indoor ...


    By EFI Global, Inc.

  • Air quality assessment in the EU: room for improvement?

    Different modelling approaches are used to design and assess air quality plans across Europe. This study assessed the strengths and weaknesses of these different approaches. The researchers conclude that a large variety of models is in use, without a preferred or standard model having emerged yet. They identify integrating local-scale and large-scale models and verifying models with measurements ...

  • Ground Zero Air Quality Has A Long Way To Go! A Summary of Air Quality Testing in Surrounding Buildings

    There are still a wide range of concerns about air quality in the vicinity of Ground Zero. Many commercial and residential spaces have yet to be re-occupied. In only a few cases has any sort of inspection or testing been done to determine if they are safe to occupy. The greatest concerns are asbestos and the very irritating concrete dust that spread throughout lower Manhattan during the collapse ...

  • 70% of Office Workers Complain About Poor Air Quality

    Building managers must ensure that “proper, effective, well maintained ventilation systems are operating in all offices across the UK” after a new survey found that indoor air pollution is prevalent in workplaces across Britain – potentially causing long-term health problems.   The YouGov survey commissioned by the Building Engineering Services Association ...


    By Camfil Ltd

  • Enhancing source apportionment with receptor models to foster the air quality directive implementation

    Receptor models (RMs) identify pollution sources by solving a mass balance equation using measured chemical composition of samples either in combination with known source profiles or not. This approach has been extensively used in North America and South–Eastern Asia mainly on particulate matter (PM). Also, in Europe RMs found wide acceptance and contributed to the identification of sources in ...


    By Inderscience Publishers

  • Canarina DISPER Software · indoor air quality dispersion · algorithms 8

      Canarina DISPER Software · indoor air quality dispersion   9.1.3 Wind Speed Profile  The wind power law is used to adjust the observed wind speed, uref, from a reference measurement height, ...

  • Canarina DISPER Software · air quality dispersion model · algorithms 3

      Canarina DISPER Software · air quality dispersion model   Symbol / Definition Ly= Initial plume length for Schulman-Scire downwash sources with enhanced lateral plume spread (m) Lb= Lesser of ...

  • German Environmental Survey IV: environmental tobacco smoke exposure of German children

    As the current extent of Environmental Tobacco Smoke (ETS) exposure of children in Germany is unknown, it was investigated in the German Environmental Survey (GerES IV) for Children from 2003 to 2006 using questionnaires and analyses of cotinine in urine and benzene and formaldehyde in indoor air. About half of the 3- to 14-year-old children in Germany live in households with at least one smoker. ...


    By Inderscience Publishers

  • Experience with GCLs used as a conductive layer in geomembrane leak-location surveys

    Engineers, installers, regulators, and owners are starting to rely on geomembrane leak-location surveys as part of the construction quality assurance for landfills. The various methods are described in ASTM Standard D 6747.' Standard procedures for conducting leak-location surveys of geomembranes covered with earth materials are described in ASTM Standard D 7007.2 Figure 1 shows the ...

  • Particle reduction plans in Europe - Implementation of the first Daughter Directive on Ambient Air Quality in Europe

    Untitled Document IMPLEMENTATION OF THE FIRST DAUGHTER DIRECTIVE ON AMBIENT AIR QUALITY IN EUROPE INTRODUCTION AND EXECUTIVE SUMMARY This ...

  • Advanced Water Quality Techniques Course

    Abstract:The development of a strategic water quality monitoring program is based on prioritizing risks to public safety and economic reality. The development of global standardized methods and protocols for automated water quality monitoring would facilitate international communication of water quality information and comparison of standardized methods and protocols. The three primary methods ...


  • Congestion charge = better air

    With the Government giving the green light for a congestion charge in Manchester, the floodgates have now been opened for the controversial scheme to be adopted around the country. But while there’s a lot of talk about the charge being another tax on drivers already struggling to cope with rising fuel prices, little has been said about the positive impact on the air we breathe. With concern about ...

  • Water quality is key to the success of Cardiff Bay

    Water quality has been a central theme in a redevelopment project that began with the creation of the Cardiff Bay Development Corporation in April 1987. This article will examine the role that water quality has played in the remarkable transformation that has taken place in Cardiff and explain how monitoring technology has developed to the stage whereby any person, anywhere in the world, can view ...

  • The link between economic growth and environmental quality: what is role of demographic change?

    Internationally, political and academic discourse is increasingly focussed on two intensifying trends: the underprovision of environmental quality and population ageing. However, the potential interrelationship between these two phenomena has been virtually completely ignored. Importantly, the social preference for environmental care is a critical factor explaining the Environmental Kuznets Curve ...


    By Inderscience Publishers

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