air quality system Articles

  • Combining surface aeration and diffused aeration improves chemical effluent quality

    “The greatest advantage we see with the Aire-O2 Tritons, is the aeration tank does not need to be emptied in order to maintain the equipment; saving us both time and resources and with no interruption to production.” Overview Daurala Organics Limited, a chemical producer in Daurala, India, manages 1600 m3/d flow in their activated sludge process plant. Daurala has ...

  • 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

  • A modelling system for air quality management

    To develop effective air quality management strategies at regional and urban levels requires the preparation of several actions belonging to different scientific areas and analysis of their complex interactions. A well-structured management system must be based on efficient tools that integrate diverse sets of information - emissions, traffic, meteorological variables and air quality data. ...


    By Inderscience Publishers

  • Air quality in America

    Although most Americans tell pollsters they believe air pollution in the United States is getting worse, the reality is quite different. In 'Air Quality in America: A Dose of Reality on Air Pollution Levels, Trends, and Health Risks' (AEI Press, January 2008) environmental scientist Joel Schwartz and political scientist Steve Hayward demonstrate why air pollution has been dropping steadily for ...


    By Blue Sky Consulting Group

  • Indoor air quality problems

    We have a number of employees in our office who have itchy, watery eyes, nasal congestion, headaches, lethargy and trouble concentrating. Most of the affected folks report they feel better at home and worse after they’ve been in the office for about an hour. We had the office tested for mold but nothing remarkable was found. What’s going on? While exposure to molds can certainly ...


    By Atlantic Environmental, Inc.

  • Improving air quality in the office

    Most people spend the main part of their day indoors – in the home, school or office environment. Focusing specifically on improving air quality in the office and workplace setting, we are looking at the key potential sources of pollution which impact upon air quality and employees’ health. Examples include, outdoor air (particularly relevant if the workplace is next to a busy road), ...


    By Commercial Air Filtration

  • AirQuis: A modern air quality management system

    AirQUIS represents the main tool for establishing and integrating the different components of the AQMS. AirQUIS is the air pollution module of an Environmental Surveillance and Information System (ENSIS), developed by NILU in co-operation with other institutions. The system has been established and operated in several cities and urban areas world-wide. It received the European IT prize in 1998, ...

  • Better air quality for the people of Cyprus

    The Minister of Labour and Social Insurance of the Republic of Cyprus, Antonis Vasiliou, today opened a comprehensive system for air quality management in Cyprus. The system, developed by the Norwegian Institute for Air Research (NILU), gives the Cyprian authorities an advanced tool for the monitoring, assessment and management of air pollution in ...

  • A quantitative approach to the traffic air quality problem: the traffic air quality index

    The Traffic Air Quality (TAQ) model is a simple tool to estimate traffic fine particulate emissions on roadways (g/km) and can be used for both real-time analysis and for localized conformity analysis (“hot-spot” analysis for nonattainment areas) as defined by 40 CFR 93.123. This paper is a follow-up to a study published earlier regarding the development of the TAQ model. This paper shows how ...

  • Improving air quality in Dhaka, Bangladesh

    Authorities in Dhaka, Bangladesh, are working hard to reduce the exposure of the population to suspended particles, which mainly derive from vehicle pollution. On behalf of the World Bank, NILU is assisting Dhaka-authorities in evaluating the the citys air quality monitoring program and in the implementation of a system for air quality ...

  • Indoor Air Quality Myths Debunked

    Today’s buildings, whether it is a home, office, manufacturing plant, hospital, etc., are more energy efficient; however, they also foster a potentially harmful environment. Indoor Air Quality (IAQ) has become a rising concern in the HVAC industry. Poor IAQ can cause a number of health issues such as, allergies, dryness and irritation to the eyes, nose, throat, and skin. It can also cause ...

  • Air quality in Europe - 2014 report

    Despite considerable improvements in the past decades, Europe is still far from achieving levels of air quality that do not pose unacceptable risks to humans and the environment. Air pollution is the top environmental risk factor of premature death in Europe; it increases the incidence of a wide range of diseases and has several environmental impacts, damaging vegetation and ecosystems. This ...

  • Dealing with Indoor Air Quality Issues

     According to the Environmental Protection Agency (EPA) journal, the average American spends about ninety percent of their time indoors. This is why the chances are overwhelming that most of the air you breathe either has entered via your building's ventilation system... or filtered in through doors, windows, or porous wall materials. Along the way, the air might have picked up any number ...


  • Air quality in Europe — 2013 report

    Air quality continues to be a very important issue for public health, the economy and the environment. Europe has significantly cut emissions of several air pollutants in recent decades, greatly reducing emissions and exposure to substances such as sulphur dioxide (SO2), carbon monoxide (CO), benzene (C6H6) and lead (Pb). Despite improvements over several decades, air pollution continues to ...

  • The air quality Model Documentation System of the European Environment Agency

    With the aim of providing objective, reliable and comparable information on air pollution models, the European Topic Centre on Air Quality (ETC/AQ) has developed a concept for an air quality Model Documentation System (MDS) to be accessible on the internet. The aim of the system is to include adequate information on the individual models, their application areas, and their status with respect to ...


    By Inderscience Publishers

  • PRESAXIO regional air quality modelling system: validation and applications

    Different operational air quality forecasts (ESSEM Cost Action 0602) are currently available in Europe. However, most of them are not suitable for regional application and, also, their coarse outputs do not fit well with air quality management needs. In this work, PRESAXIO regional air quality modelling system is validated and applied over Galicia (NW of Spain), including WRF and CHIMERE models. ...


    By Inderscience Publishers

  • Inter-comparison of two air quality modelling systems for a case study in Berlin

    A case study was carried out to compare two air-quality models (UAM-V and MCCM) in the region of Berlin. These are two well documented regional and urban models which were run independently with their own meteorological drivers and emission inventories with the aim to describe a specific ozone episode. Numerous applications in the US and in Europe have shown the good performance of these models. ...


    By Inderscience Publishers

  • A decision support system for air quality management combining GIS and optimisation techniques

    This paper describes a multi-tiered approach to the design of plans and policies for urban environmental management, in particular air quality, as related to the energy and transportation sectors. The approach is based on the iterative combination of sectoral and global optimisation models, including a discrete multi-criteria approach, and spatially distributed air quality models. The approach ...


    By Inderscience Publishers

  • ADMS-Urban: an air quality management system for traffic, domestic and industrial pollution

    The new version of the Atmospheric Dispersion Modelling System for urban environments, ADMS-Urban, is based on the same up-to-date physics as the ADMS model, outlined briefly here in Section 2. The basic model has been the subject of extensive validation studies: as part of this series of European Harmonisation Workshops; sponsored by HMIP (Her Majesty's Inspectorate of Pollution, now part of the ...


    By Inderscience Publishers

  • An air quality modelling system for a medium-sized town: a case study in Estonia

    The air pollution modelling system used in Tartu (population 101,000) is aimed at examining the pollution levels in different meteorological conditions, and determining optimal traffic schemes and strategic development plans for the city. The system consists of: (i) a Gaussian plume model AEROPOL, and (ii) a database on sources of NOx2 ...


    By Inderscience Publishers

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