Indoor Air Monitoring Articles

  • Museums, galleries, libraries and archives are at risk from indoor pollutants.

    Indoor Air Quality is a significant issue in libraries, museums and archival collections - due mainly to the fact that many compounds, as well as unsuitable temperature and humidity has a deteriorating effect on many valuable and precious items stored in these buildings. Air pollution can attack heritage materials. Museums, galleries, libraries and archives are all at risk. Deterioration is ...


    By PPM Technology

  • IAQ Consultants Encouraged to Review their E&O Insurance

    Errors & omissions (E&O) insurance, also known as professional liability insurance (PLI) and professional indemnity insurance (PII) is a crucial form of coverage for professionals dealing with indoor air quality (IAQ) consulting services.  E&O insurance helps to protect IAQ consultants who provide advice and services from the full cost of defending against negligence claims and ...

  • Taiwan Indoor Air Quality Management Act

    On 8 November 2011, the Taiwanese Legislative Yuan passed the Indoor Air Quality Management Act making Taiwan the second nation after Korea to implement an indoor air quality management act. For accurate understanding of indoor air quality, it is advised to simultaneously monitor multiple indoor air quality parameters including gases, temperature and humidity. PPM Technology’s range of IAQ ...


    By PPM Technology

  • Double benefit of monitoring Indoor Air Quality (IAQ)

    It is a difficult balance to save money and energy yet maintain a comfortable and healthy indoor air environment. A logical solution to controlling indoor air pollution is good ventilation coupled with IAQ monitoring using gas sensors. This can ensure healthy indoor air as well as a more efficient HVAC system.  Typical IAQ investigation and examination consists of taking single-point ...


    By PPM Technology

  • Are Insurance Rates Going Up for IAQ Professionals?

    During the past eight years, the number of insurance carriers that provide coverage for environmental contractors and consultants has grown from about five to over thirty.  The result for companies in the industry has been lower insurance premiums, easier access to coverage, and low deductibles.     Many insurance experts believe that the era of low rates is about to change.  ...

  • 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 ...

  • CO2 vs. VOC Sensors for IAQ - What`s the Difference

    People sometimes ask about the differences between VOC (Volatile Organic Compounds) sensors and CO2 sensors. While both can be used to measure indoor air quality (IAQ), these sensors are not interchangeable. They measure very different things. CO2 sensing technology by IR (infrared) is stable and is not subject to the short-term, random drift found in air quality sensors. Most IR carbon ...


    By CO2 Meter, Inc.

  • Case study of odor and indoor air quality assessment in the dewatering building at the Stickney Water Reclamation Plant

    Indoor air quality (IAQ) and odors were determined using sampling/monitoring, measurement, and modeling methods in a large dewatering building at a very large water reclamation plant. The ultimate goal was to determine control strategies to reduce the sensory impacts on the workforce and achieve odor reduction within the building. Study approaches included: (1) investigation of air mixing by ...


    By IWA Publishing

  • Canarina DISPER Software · indoor air quality dispersion · algorithms 8

      Canarina DISPER Software · indoor air quality dispersion   9.1.3 Wind Speed Profile  The wind power law is used to adjust the observed wind speed, uref, from a reference measurement height, ...

  • Monitor Volatile Organic Compounds (VOC’s) with PPM Technology’s IAQ Monitor

    Volatile organic compounds (VOC’s) are emitted as gases from certain solids or liquids. VOCs include a variety of chemicals, some of which may have short- and long-term adverse health effects. Concentrations of many VOCs are consistently higher indoors (up to ten times higher) than outdoors. VOC’s is one of numerous sensor options that can be incorporated into PPM Technology’s ...


    By PPM Technology

  • Thermal comfort, indoor air quality and acoustics: a conceptual framework for predicting occupant satisfaction in sustainable office buildings

    The authors propose and test a conceptual framework that delineates occupants' satisfaction with thermal comfort, indoor air quality, and acoustics conditions via post-occupancy evaluation (POE). A self-administered, internet-based, POE questionnaire was administered in two office buildings that were designed and operated as county service centres in a Midwestern state. A series of multiple ...


    By Inderscience Publishers

  • Why monitor Indoor Air Quality (IAQ)?

    Indoor Air Quality (IAQ) relates to a number of environmental factors inside a building that can impinge on the health, comfort, or work performance of the building’s occupants. Monitoring IAQ is vital because it is estimated that the average person spends 90% of their time breathing “indoor air”. In order to accurately understand a building’s indoor air quality, it is ...


    By PPM Technology

  • Continuous monitoring of multiple Indoor Air Quality (IAQ) parameters

    Measuring and monitoring hazardous gases is a critical issue in industrial and workplace safety.  Many facilities are especially vulnerable to the effects of an unhealthy indoor environment when fuel-burning vehicles are used indoors. Placing an IAQ monitoring system in buildings and facilities enables immediate identification of IAQ problems, the sources and causes of any problem can be ...


    By PPM Technology

  • What is an `IAQ Profile`?

    The 'IAQ Profile' is a visual presentation of indoor air quality. PPM Technology's range of IAQ Monitors enable continuous monitoring of Indoor Air Quality; this precisely describes changes in concentration levels of selected air quality parameters over a period of time.  The IAQ Profile provides the knowledgebase and database for improving indoor air quality efficiently and ...


    By PPM Technology

  • If a Natural Disaster Occurred Tomorrow, Would Your Environmental Business be ready to Help?

    2011 has been a historic year for natural disasters.  From wildfires, flooding, tornadoes and tsunamis, we have seen it all.  Just this month, the 2011 U.S. Hurricane Season began.  The National Oceanic and Atmospheric Administration (NOAA) announced their predictions for the season as being above average with as many as 10 hurricanes being predicted. Whether an earthquake, ...


    By Cochrane & Associates, LLC

  • 10 Commandments of Indoor Air Quality (IAQ)

    Indoor Air Quality (IAQ) relates to a number of environmental factors inside a building that can impinge on the health, comfort, or work performance of the building’s occupants. Monitoring IAQ is vital because it is estimated that the average person spends 90% of their time breathing “indoor air”.    PPM Technology and our partners Hinds International have ...


    By PPM Technology

  • `Green Buildings` can create problems with IAQ

    The recent trend towards energy conservation measures have in some cases led to airtight building construction that can often create problems with Indoor Air Quality (IAQ). Some 'green buildings' (also known as ‘green construction’ and ‘sustainable buildings’) have ignored the issue of IAQ in pursuit of energy saving measures. Ventilation systems are set to minimize the ...


    By PPM Technology

  • `Green Buildings` can lead to problems with Indoor Air Quality (IAQ)

    In striving to construct energy-efficient, cost-effective buildings, the imperative issue of their indoor air quality (IAQ) is often overlooked. This can lead to an unhealthy indoor environment and to conditions such as sick building syndrome (SBS) or other building related illnesses (BRI). In the past few decades, energy conservation measures have led to airtight building construction that can ...


    By PPM Technology

  • Ice rinks and arenas vulnerable to harmful pollutants

    PPM Technology’s Mini IAQ Profile Monitor system used by ice rinks to monitor levels of harmful gases. Indoor Air Quality (IAQ) is a significant concern in ice rinks and arenas; these facilities are especially vulnerable to the affect of an unhealthy indoor environment as fuel-burning equipment such as ice resurfaces are used indoors. ...


    By PPM Technology

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