Air Training Articles

  • Polluters Extended Responsibility

    "Waste generation is my right but collection & disposal is a responsibility of others. I just throw the non-value items on the streets and outside the homes of my neighbors but the waste like newspapers, plastic items, fabrics, metals, furniture, e-waste etc. which can fetch value, I store in my house & work place and sale to scrap merchants at the best prices. I do not care for the ...


    By Eco Recycling Ltd

  • Air Pollution Is Making Office Workers Less Productive

    Businesses invest a great deal of time and money in interventions that claim to increase workers’ productivity through on-the-job training, new protocols, advice from consultants, and so on. Recent research suggests that there’s a surprising input into productivity that no one ever thinks about: clean air. We all know that air pollution is bad for our health, and researchers ...


    By Camfil Ltd

  • Environmental Regulatory Compliance Practitioner Spotlight: Pete Schwalbach

    Name: Pete Schwalbach Office: St Paul Practice Area: OPA Area of expertise: Environmental Regulatory Compliance About Me in 140 Characters Happily married, father of three, ...


    By Antea Group - USA

  • Longitudinal dispersion in open channel flow with suspended canopies

    Suspended canopies can cause flow disturbances such as reducing velocities within the canopy, and increasing flow beneath the canopy. Flow modifications by canopies dramatically affect the fate and transport of sediment, nutrients, contaminants, dissolved oxygen, and fauna in aquatic systems. A three-zone model is presented here to predict the longitudinal dispersion coefficient by simplifying ...


    By IWA Publishing

  • Digital Asset Management facilitates compliance to NATA case study

    Customer Typical mining company in Australia Application Operations, Calibrations, Maintenance &  ...


    By Ecotech Pty Ltd

  • Tracking pollution at a personal level

    Two big stories from 2014 were the amount of air pollution in cities, especially in China, and the rise of “wearables” and other personal technologies people use to track things about themselves, often having to do with health and fitness measurements, such as steps taken, hours slept, heart rate and more. Now, the ...


    By Ensia

  • Numerical simulations of street canyon ventilation and pollutant dispersion

    The relationship among air exchange rate (ACH), pollutant exchange rate (PCH) and friction factor ( f ) is proposed in this study to evaluate the performance of ventilation and pollution removal of hypothetical urban areas. Urban areas were simplified to arrays of idealised, repeated two-dimensional (2D) street canyons of different building-height-to-street-width (aspect) ratios (ARs) and ...


    By Inderscience Publishers

  • Evaluation of the influence of micrometeorological data on concentration estimates

    A dispersion model for continuous releases of pollutants in the atmospheric boundary layer is applied to study the influence on modelled concentrations of different estimates of the key micrometeorological variables that represent the dispersion processes. The modelling approach is based on the advection-diffusion equation and includes profiles of wind and eddy diffusivity for the entire ...


    By Inderscience Publishers

  • Sensitivity analysis of the modelled deposition of 137 Cs on the Japanese land following the Fukushima accident

    Dispersion of radioactive material released to the atmosphere from the Fukushima Daiichi Nuclear Power Plant accident in Japan was modelled to assist the French Government in effectively providing public health advice to its citizens in Japan. It required estimation of radiation doses based on realistic scenarios and atmospheric dispersion modelling. In this paper, sensitivity studies are ...


    By Inderscience Publishers

  • Source identification by a statistical analysis of backward trajectories based on peak pollution events

    Back-trajectory techniques are extensively used to identify the most probable source locations, starting from the known pollutants concentration data at some receptor sites. In this paper, we review the trajectory statistical methods (TSMs) that are most used in literature for source identification, which are essentially based on the concept of residence time (RT), and we introduce a novel ...


    By Inderscience Publishers

  • Atmospheric dispersion and individual exposure of hazardous materials. Validation and intercomparison studies

    In a previous study, new approaches have been introduced in the CFD-RANS modelling, according to which the concentration time scales are estimated as a function not only of the flow turbulence time scales but also of the pollutant travel times. The new approaches have been implemented for the calculation of the concentration fluctuation dissipation time scale and the maximum individual exposure ...


    By Inderscience Publishers

  • Chemical reactions at street scale using a Lagrangian particle dispersion model

    In the context of the FEDER AIRCITY project, Paris City is modelled with a 3 m resolution with the purpose of computing pollutant concentration relevant for human exposition. This project involves AIRPARIF (Ile-de-France Air Quality Monitoring Network), for emission and immission data, CEA (French Atomic and Alternative Energy Agency) for HPC availability, National Geographic Institute (IGN) for ...


    By Inderscience Publishers

  • Modelling dispersion of smoke from wildfires in a Mediterranean area

    We present a modelling system for the estimation of forest fire emissions ( prebolchem-fire ) and their inclusion in the atmospheric composition model BOLCHEM. Emission fluxes have been estimated following the methodology proposed by Seiler and Crutzen (1980) and using MODIS ‘burned area product’. Then they are modulated following the WRAP approach (WRAP, 2005). This approach is also used for ...


    By Inderscience Publishers

  • Dispersion models and air quality data for population exposure assessment to air pollution

    Evaluating the extent of exposure to chemicals in absence of continuous measurements of their concentration in air and direct measures of personal exposure is crucial for epidemiological studies. Dispersion models can be a useful tool for reproducing spatio-temporal distribution of contaminants emitted by a specific source. However, they cannot easily be applied to short-term epidemiological ...


    By Inderscience Publishers

  • Calculation of the far range atmospheric transport of radionuclides after the Fukushima accident with the atmospheric dispersion model MATCH of the JRODOS system

    The paper presents estimates of the far-range atmospheric dispersion of radionuclides after the accident at Fukushima Daiichi Nuclear Power Plant (NPP), obtained using the long-range atmospheric dispersion model MATCH. Software tools were developed to run MATCH in the EU nuclear emergency response system JRODOS using freely available numerical weather prediction (NWP) data of the Global ...


    By Inderscience Publishers

  • Determinating the influence of different PM 10 sources on air quality in Ljubljana basin with CALPUFF dispersion model

    Ljubljana has an unfavourable geographical location in the basin, almost entirely surrounded by high hills. Winds in the basin are often weak and situations with temperature inversion are very frequent, therefore, many PM 10 daily limit value exceedances were observed in 2011. The Directive 2008/50/EC (EU, 2008) requires member states to adjust or provide new air quality plans in order to ...


    By Inderscience Publishers

  • Compliance Corner - Develop and implement

    On March 25, 2003, the US Department of Transportation (DOT) issued an emergency revision to the Hazardous Materials Regulations (HMR) relating to security training and security planning for transporters and offerors (shippers) of hazardous materials (hazmat). DOT recognised a need to address growing concerns over the significant threat that hazmat can pose when it is used for malicious or ...


    By 3E Company

  • Longitudinal and transverse dispersion coefficients in braided rivers

    The dispersion characteristics of braided rivers are presently unclear. The comprehensive flow structure in a physical braided river model was measured and was used to estimate its dispersion coefficient tensor. The largest values of the longitudinal and transverse dispersion coefficients occurred in the separation zone in two anabranches. The separation zone disappeared in a small diversion ...


    By IWA Publishing

  • Regulatory compliance case study

    Service performed: Developed a Task Notification System (TNS) for 11 facilities in the U.S. Summary: As a proud partner of a leading manufacturing of glass, our experts have provided ongoing environmental support services since 2004, with particular focus on environmental compliance and ongoing management of recurring environmental tasks. In order to ...


    By EFI Global, Inc.

  • 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.

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