Air Monitoring Articles

  • New modular options for AQMesh air quality monitoring systems

    The AQMesh small sensor air quality monitoring system already offers flexibility of monitoring location – through independent power and communications – as well as high data quality and traceability. Now the platform is even more flexible offering up to 20 different data channels. The wide range of sensors, including gases such as NO2, particulate matter (PM1, PM2.5 and PM10) wind and ...


    By AQMesh

  • How clean is your local air?

    Few people know how clean the air is where they live, work, exercise or where their children go to school. Although air quality can be shown to vary significantly over short distances, air pollution is generally measured using a small number of large, expensive and high quality monitoring stations. The equipment used in these stations is very accurate and complies with measurement standards but ...


    By AQMesh

  • Gas Chromatography: MCERTS Certification for Ambient Air Analysis on Benzene and VOCs

    Due to environmental issues, the world of gas analysis is evolving very rapidly.Governments set the rules to limit and control the environmental pollution through legislation.Volatile organic compounds (VOCs),often produced by human activities, are amongst the sources of pollution that need to be identified and quantified for safety reasons. Exposure to high concentrations of certain VOCs is ...


    By Chromatotec Group

  • Top 5 Differences between Micro Pulse LiDAR and Ceilometer Technology

    If you are evaluating backscatter LiDAR sensors for measuring aerosols, cloud vertical structure, and planetary boundary layer (PBL) heights, what factors should you consider in your comparison? It really comes down to a choice between the traditional analog technology used in ceilometers and the more recent advanced technology found in Micro Pulse LiDAR (MPL) sensors. ...

  • 3D Printed Auto Parts—The Future Is Now

    Overview 3D printing (also known as “additive manufacturing”) affords manufacturers the ability to create custom parts that fit together perfectly.  Utilized for decades in the medical products and aerospace parts industries, 3D printing is increasingly being used in other industries as well, including the relatively recent advent of 3D printed metal auto parts. ...

  • Digital Airport - Londrina, Paraná, Brazil - Case Study

    Project Brazil’s state of Paraná includes ...

  • Intraurban Variability of Ambient PM Arsenic and Other Air Toxics Metals in St. Louis

    The Missouri Department of Natural Resources (MoDNR) and Washington University participated in a project to collect and analyze air toxics metals data. It was funded through a Community Air Toxics Grant from the U.S. Environmental Protection Agency (USEPA). The study grew out of the southside St. Louis Community Air Project (CAP) which identified six hazardous air pollutants of concern including ...

  • Future Development Trend of Underwater Drone

    1. Technological innovation will be the eternal theme           As a highly technology-intensive and systematic project, underwater vehicle mainly includes six technologies: simulation, intelligent control, underwater target detection and recognition, underwater navigation (positioning), communication and energy system. Compared with developed countries, there is ...

  • New requirements for safe use and storage of liquid nitrogen and dry ice

    The College of American Pathologists ("CAP")recently imposed new requirements to address risks related to the use and storage of liquid nitrogen ("LN2") and dry ice. Background The new requirements come after a deadly incident in 2017, when liquid nitrogen leaked at a Georgia lab that was not accredited through CAP.  Emergency responders were called to the scene when an ...

  • Air usage data increases company profit - Case Study

    A large American container company required mass flow meters on their air compressor lines to help evaluate the efficiency of blow mold machines in their plant. The manufacturer melts PET chips and extrudes them through blow mold machines to produce plastic bottles for the beverage industry. Plant engineers need data on compressed air usage to help them reduce utility and production costs. Four ...


    By Sierra Instruments, Inc.

  • Ancient process meets the future - Case Study

    Food, beverage and pharmaceutical industries requiring the regulation of air and gas flows have historically faced the challenge of obtaining highly accurate measurements in rugged factory environments. Within the last two decades, thermal mass flow controllers have overcome the shortcomings of volumetric approaches and demonstrated precise accuracy. With the advent of industrial gas mass flow ...


    By Sierra Instruments, Inc.

  • Glass manufacturer controls gas ratios - Case Study

    For a specialty glass manufacturer that constructs high-quality glass containers for the pharmaceutical and analytical industry, manual control of air and natural gas flow to the burner tip had resulted in unacceptable levels of rejected material, as well as excessive gas consumption. The process engineers were seeking methods to improve glass quality, reduce raw material waste, and increase ...


    By Sierra Instruments, Inc.

  • Refinery tracks down costly air leaks – Case Study

    A refinery recently installed two new air compressors in their plant and specified two mass flow meters to measure utility air use and dry instrument air mass flow rate as well as total plant output. Their principal objective was to monitor increased air usage or temperature changes that might indicate a leak…a costly proposition. SIERRA’S SOLUTION The plant engineers ...


    By Sierra Instruments, Inc.

  • Facility reduces process downtime – Case Study

    A facilities subcontractor for Boeing required meters to monitor the make-up air mass flow rate into a painting facility. The make-up fans ensure compliance with OSHA and Boeing air quality standards by reducing contamination and airborne particles that result from over-spray. The Boeing standard dictates a minimum airflow of 125 SFPM to the paint booths. Should the airflow drop below this ...


    By Sierra Instruments, Inc.

  • Particulate partial flow sampling

    The sampling method of the Sierra Instruments Model BG-3 sets the standard for engine particulate emissions measurement protocols of the future sierra instruments In a study at West Virginia University, evidence showed that the Sierra Model BG-3 partial-flow system is equivalent to full-flow CVS. At the August 2008 DEER conference, the university’s Dr Ben Shade presented a paper evaluating ...


    By Sierra Instruments, Inc.

  • Advanced thermal dispersion mass flowmeters

    Thermal dispersion (TD) mass flowmeters measure the mass flowrate of fluids (primarily gases) flowing through a closed conduit, such as a pipe. This article describes the operation and installation of TD mass flowmeters, and gives the reader information about what applications these meters are most suited for. Background The first general description of TD mass flowmeters is ...


    By Sierra Instruments, Inc.

  • Borescope Increases Know-How by Continuously Measuring Temperature of Tube Walls for Air Liquide - Case study

    INTRODUCTION Air Liquide, the world leader in gases, technologies and services for industry and health, has implemented AMETEK Land's Near Infrared Borescope (NIR-B) 3XR, an enhanced thermal imager, and now is gaining in know-how by continuously measuring temperature of tube walls within its steam methane reformers (SMR). ABOUT AIR LIQUIDE Founded in 1902, Air ...


    By AMETEK Land

  • Choosing flow monitors for CEMS applications

    As a result of the 1990 Clean Air Act Amendments1, electric power plants must reduce their emissions of sulfur dioxide and nitrous oxides—the primary causes of acid rain. The U.S. Environmental Protection Agency (EPA), in its proposed rules2, designates the 111 Phase I fossil-fueled plants ^roughly 268 boiler units) that must have continuous emissions monitoring systems (CEMS) installed, ...


    By Sierra Instruments, Inc.

  • Particulate Matter Testing - BG3 Partial Flow Dilution Emissions Sampling - Case Study

    Today, the BG3 Elite Series for partial flow dilution (PFD) is the standard used to test and measure particulates by such industry giants as Caterpillar, John Deere, Perkins, JCB, and even the US EPA, and has found a global installed base of hundreds of units.  On January 7, 2011, ...


    By Sierra Instruments, Inc.

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