air monitoring procedure Articles

  • 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

  • A Procedure for Determining Volumetric Shrinkage of an Unsaturated Soil

    Measurement of unsaturated soil volumes can be used to monitor drying shrinkage and allows calculation of the volumetric air content/moisture content relationship. From this relationship, the onset of significant desaturation can be established as a bound to the validity of conventional soil testing under saturated conditions and of conventional analysis procedures for the particular ...


    By ASTM International

  • Design methodology for background air pollution monitoring site selection in an urban area

    We present an air monitoring site selection procedure to determine the minimum number and location of monitoring stations to identify the occurrence of background concentrations greater than a reference value in an urban area. The objective technique reported here is based on the analysis of concentrations estimated using an urban dispersion model for at least one year of hourly information. As ...


    By Inderscience Publishers

  • Asbestos monitoring – what monitor should I be using?

    Asbestos is the name given to a group of minerals that occur naturally as masses of strong, flexible fibres that can be separated into thin threads and woven. These fibres are not affected by heat and do not conduct electricity. Asbestos is chemically, relatively stable. For these reasons, asbestos has been widely used in many industries.  These four types are classified as follows:  ...


    By Shawcity Limited

  • Instrument air case study

    Application Moisture is measured in instrument air to ensure that the air is properly dried. Problem Instrument air is used through-out a facility to protect delicate electronics, instruments, and to operate key process actuators. Many instruments also use instrument air to operate various pneumatic operators they might possess. Too frequently, there is ...

  • General Air Sampling Guidelines (PDF)

    This Standard Operating Procedure (SOP) provides guidance in developing and implementing sampling plans to assess the impact of hazardous waste sites on ambient air. It presents the United States Environmental Protection Agency/Environmental Response Team's (U.S. EPA/ERT's) approach to air sampling and monitoring and identifies equipment requirements. It is not within the scope of this SOP to ...

  • A Breath of Fresh Air for Your

    As the full effect of the Federal Clean Air Act (CAA) Amendments continue to impact today’s industry, many companies will be required to install new or additional air pollution control equipment.  With over two decades of proven success, catalytic oxidation is a popular method for controlling volatile organic compound (VOC) emissions.During the past 25 years, industry has made progress in ...


    By The CMM Group, LLC

  • Baseline data in air quality impact studies

    The main objective of this paper is to explain not only the importance of the baseline data in air quality studies but also the general procedures and steps involved in the baseline data collection. Special considerations on the instruments and measurements for a perfect baseline data collection are also emphasized in this paper. As an example, an adequate baseline data collection procedure which ...


    By Inderscience Publishers

  • California Air Resources Board (CARB) places higher restrictions on air pollution

    As part of the California Global Warming Solutions Act (AB 32) the Air Resources Board (ARB) has approved an early action measure to reduce high-global warming potential (GWP) greenhouse gas (GHGs) emissions by establishing new legislation and defining requirements related to improved monitoring of AC/HVAC systems, enforcement of regulations, reporting of refrigerant usage, and recovery, ...


    By Verisae

  • AirTest CO2 monitors & the seattle school district case study

    Background Siemens Building Technology provides the building control solutions for the Seattle School District. The school district has been installing CO2 monitors in gyms, auditoriums and some school classrooms as a way to ensure good air quality and a healthy teaching environment. They are also now realizing that there is an energy benefit to CO2 control in that they can control fresh air ...

  • How to Achieve Good Indoor Air Quality in Operating Rooms

    There are two primary objectives in achieving acceptable air quality in the operating room: (1) control of anesthetic gases for the benefit of operating room staff, and (2) infection control for the benefit of the patient. Control of Anesthetic Gases Supply and scavenging systems, as well as general ventilation in the OR, must be functioning optimally for the surgical ...


    By Atlantic Environmental, Inc.

  • Involving the public in local air pollution assessment: a citizen participation case study

    The central theme of this paper is that the assessment of environmental issues requires citizen participation for several reasons, including access to local knowledge, quality assurance and to reveal values and agendas. One methodology for involving the public is presented, based around the case of air pollution assessment in Sheffield. The study procedure of using citizen groups is described, ...


    By Inderscience Publishers

  • First evaluation of a novel screening tool for outlier detection in large scale ambient air quality datasets

    Systematic collection of long term meso- to large-scale datasets of ambient air quality provides an indispensible means for air pollution monitoring. However, the quality of these monitoring data depends on the chosen method of measurements and the QA/QC procedures applied. We present the first version of a prototyped screening tool for the automatic detection of outliers in large data volume ...


    By Inderscience Publishers

  • An inverse modelling approach for estimating vehicular emissions in urban coastal areas of the Messina Strait

    The CALPUFF modelling system was used to predict dispersion of contaminants emitted from industrial, naval and vehicular sources in the Strait of Messina area (Italy). This region is of particular interest in that it relates to the construction of the Messina Bridge, the road infrastructure linking the Italian mainland and Sicily. The domain includes two cities, i.e., Messina and Reggio Calabria, ...


    By Inderscience Publishers

  • 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

  • Automatic Ozone Mapping in France with ISATIS

    In France, air quality data are acquired by associations in charge of the air quality monitoring (Agences Agréées pour la Surveillance de la Qualité de l’Air - AASQA) These associations use the automatic procedures of ISATIS to daily update the pollution maps they publish on their websites. These automatic procedures make use of batch and allow to save time in the cartography because they enable ...


    By Geovariances

  • Fawley Power Station– Case Study

    Project Highlights Asbestos air monitoring associated with asbestos removal and remediation was undertaken on the Fawley Power Station site on a daily basis for a duration of four years on behalf of CAPE Plc. Demolition asbestos survey have also been undertaken of all buildings due to demolished as a consequence of the ...

  • States propose attainment designations for the new 1-hour So2 NAAQS

    The U.S. EPA revised the primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2) on June 2, 2010 by implementing a new 1-hour standard of 75 parts per billion (ppb) (calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations). Based on an evaluation of the risks posed by acute exposure to SO2, EPA ...


    By Trinity Consultants

  • Drying plastic resin pellets in injection- Molding & Extrusion processes case study

    Application Moisture concentrations are measured in the dry purge air used to remove moisture from a hopper containing plastic resin pellets used in injection-molding and extrusion processes. Problem Moisture contaminates the plastic resin pellets causing several quality problems in the finished plastic products. Moisture causes clear ...

  • U.S. EPA Releases 1-Hour NO2 NAAQS Modeling Guidance

    The U.S. EPA Air Quality Modeling Group (AQMG) recently released a new guidance document for NO2 modeling.   The document outlines procedures that can be used to calculate the NO2 design values for comparison to the new 1-hour NO2 National Ambient Air Quality Standard (NAAQS).  The new 1-hour NO2 standard of 100 ppb goes into effect on April 12, 2010.  This 1-hour NO2 standard ...


    By All4 Inc.

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