air quality monitoring process Articles

  • An Automated Workflow for Meteorological and Air Quality Data

    An Automated Workflow for Meteorological and Air Quality Data All collected as hourly average data on a Campbell Scientific CR3000 8 years of data taken hourly and daily 4 stations in remote areas of the Dominican Republic  20 primary measured parameters Added Air Quality QA/QC ...


    By EarthSoft, Inc

  • Planning for a Gas Monitoring System

    Do you need a gas monitoring system? Then you already know which gases you want to monitor, you probably have an idea of measurement ranges and accuracy requirements, and perhaps you have a budget for the system. But which other aspects have to be considered, and how do you actually design the system? ...


    By Opsis AB

  • Environmental impact prediction of air quality in a food processing environment

    An impact study of food processing factory in Nigeria on air quality of its environment was studied using a factorial experiment. The effects of three primary air pollutants (by-products of the food processing): nitrogen (IV) oxide (NO2), carbon (IV) oxide (CO2) and sulphur (IV) oxide (SO2) on formation of acid rain also studied. These factors and their interactions in the predictive model showed ...


    By Inderscience Publishers

  • Carbon Dioxide Measurement

    What is Carbon Dioxide? Carbon Dioxide (CO2) is a chemical compound that is an odourless colourless gas at room temperature. The compound consists of one carbon atom and two oxygen atoms. ...

  • How Does a Gas Analyser Work?

    Whatever you want to detect, you need to identify a property of the object that is easy-enough to measure. When it comes to monitoring and analysis of gaseous species (atoms or more commonly molecules), it turns out that it often is possible to utilize the optical properties of the gas. You need a light source, a light detector, and a characteristic behaviour of the gaseous species in question ...


    By Opsis AB

  • A methodology for seasonal photochemical model simulation assessment

    This paper presents a methodology to evaluate the model-skill assessment in simulating seasonal periods. In the proposed approach, the model evaluation is performed by using statistical and graphical methods. Such indexes and graphics are computed and processed for a limited number of representative domain stations, selected by a procedure based on the Cluster Analysis. Cluster Analysis, ...


    By Inderscience Publishers

  • EEA Signals 2013 - Every breath we take

    Linking science, policy and the public The atmosphere, weather patterns and seasonal variations have long been an object of fascination and observation. In the 4th century B.C., Aristotle’s treatise Meteorology compiled the great philosopher’s observations not only on the weather patterns, but on earth sciences in general. Until the 17th century, air symbolised ...

  • What is a PID?

    Introduction PID is the abbreviation for “Photo-Ionization Detector”. A PID is a hand-held, personal, or fixed wall mounted detector that measures a broad range of volatile organic compounds (VOCs) and some inorganic compounds in the parts-per-million (ppm) to parts-per-billion (ppb) range. It gives a continuous read-out and can alarm when concentrations exceed user-defined set ...


    By Ion Science Ltd.

  • Gas Concentration Monitoring in Sulfuric acid production

    Sulfuric acid (H2SO4) is a central substance in the chemical industry. Principal uses include mineral processing, fertilizer manufacturing, oil refining, wastewater ...


    By Opsis AB

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