indoor air quality laboratory Articles

  • What is Indoor Air Quality?

    Indoor Air Quality (IAQ) refers to the degree of air purity inside buildings that constitute the usual environment in which people carry out activities (offices, homes, schools, shopping and leisure centres, etc.) Because of increasing urbanisation and our contemporary lifestyle, most people spend a large proportion of their time in these closed environments. The high level of atmospheric ...


    By Bioconservacion SA

  • Thermal comfort study of air-conditioned university laboratories

    In tertiary education institutions, good indoor air quality (IAQ) provides a conducive environment for teaching and learning activities. A field study on the environmental conditions and occupants’ comfort was carried out in six laboratories at Universiti Sains Malaysia. The study evaluates the current thermal comfort conditions using objective measurement and subjective assessment. The measured ...


    By Inderscience Publishers

  • Minimising Risks to Air Quality and Regulatory Compliance With Total Filter Management

    It has been shown in recent studies that as much as 25% of the total site operating budget (excluding raw material costs) for a typical medium-large dosage-form manufacturing facility will be spent on compliance measures for internal quality systems and external regulatory activities. (1) Market realities indicate that the pharmaceutical companies will need to address the overall cost of ...


    By GVS Filter Technology

  • BTEX monitor, equal performances to laboratory chromatographs

    Environnement S.A leveraged its technical leadership in this field with an extensive experience, being one of the first companies creating its first BTEX analyser almost 20 years ago. The VOC72M third generation of ...

  • How to choose the best laboratory for your microbiology analysis

    For indoor air quality professionals, choosing a good microbiology lab is one of the most important business decisions you can make. How do you know that the fungal data that you are receiving is accurate? Will it stand up in court? Has an educated, experienced, trained analyst actually thought about your sample and your project, understood what you were looking for, and then used their knowledge ...


    By EMLab P&K

  • Why Air Quality Specialists Should Measure for Sulfur Dioxide (SO2) in Homes & Offices - Case study

    What is Sulfur Dioxide? (SO2) Sulfur Dioxide (SO2) is a highly reactive gas that is part of a larger group of sulfur oxides or SOx gases. According to the U.S. Environmental Protection Agency, the largest sources of SO2 emissions are due to “fossil fuel combustion at power plants (73%) and other industrial facilities ...

  • Air uality in IVF Labs

    Since the birth of the first baby from in-vitro fertilisation (IVF) in 1978, Assisted Reproductive Technology (ART) has grown in importance as techniques and success rates have continued to improve. Put simply, IVF involves mixing sperm and egg in a lab to create an embryo which is then replaced in a woman's womb to develop normally with success being measured in terms ...


    By Commercial Air Filtration

  • Building Services Management - Air Sampling -

    Untitled Document Maintenance professionals are often the first responders to mold complaints in their facilities. building occupants can be exposed to fungal (mold) ...


    By EMSL Analytical, Inc.

  • Adverse Health Effects of Elevated Nitrogen Dioxide (NO2) Levels in Homes - Case study

    The Sources of NO2 in Homes Nitrogen Dioxide (NO2) is a colorless, odorless gas that is commonly emitted from home heating elements such as gas, wood, oil, kerosene, and coal burning appliances, including stoves, space heaters, water heaters, furnaces, boilers and fireplaces. Gas engines, including those found in cars and home generators, also emit ...

  • The Toxic Effects of Hydrogen Sulfide (H2S) Gas from Sewers on Health & Infrastructure - Case study

    How is Hydrogen Sulfide Created? Hydrogen sulfide emitted from sewers and septic tanks can cause serious health issues. Hydrogen sulfide gas is created and released into the air when waste water remains stagnant for a long period of time, and becomes depleted of dissolved oxygen. Although sewer workers are most likely to be affected by hydrogen sulfide overexposure, people living or ...

  • Sick-building syndrome and building-related illness

    Significant health problems linked to very poor indoor air qualityIndoor Air Quality (IAQ) deals with the content of interior air that could affect health and comfort of building occupants. The IAQ may be compromised by microbial contaminants (mold, bacteria), chemicals (such as carbon monoxide, radon), allergens, or any mass or energy stressor are more prevalent than anyone could have predicted. ...

  • TVOC measurement for LEED/green building evaluation

    Total Volatile Organic Compounds (TVOC) may be evaluated when building designers/managers are pursuing the Leadership in Energy and Environmental Design Green Building Rating System for New Construction (LEED-NC) EQ Credit 3.2. The latest LEED-NC guidance document specifies that the maximum allowed concentration of TVOC measured in a building (post construction, pre-occupancy) is 500 µg/m3; the ...


  • Operating Room - UVC lights provide infection control, green benefits

    Muskogee Community Hospital (Muskogee, OK) is using germicidal UVC (ultraviolet C) Emitters™ from Steril-Aire as part of an innovative infection control measure. The devices were installed in the air handling units and in custom-designed, ceilingmounted units in the surgical and procedural suites, marking the first time a hospital has used UVC technology in this way. Steril-Aire devices ...


    By E-CO

  • Technical protocol for evaluating natural attenuation of chlorinated solvents in ground water

    The U.S. Environmental Protection Agency is charged by Congress with protecting the Nation’s land, air, and water resources. Under a mandate of national environmental laws, the Agency strives to formulate and implement actions leading to a compatible balance between human activities and the ability of natural systems to support and nurture life. To meet these mandates, EPA’s research ...


    By RNAS Remediation Products

  • Gas Detection and Monitoring Systems

    In greenhouse applications, the accurate measurement of a number of environmental parameters such as carbon dioxide concentration, temperature, light intensity, water, humidity, pH and nutrient levels using sophisticated sensors is used to create a controlled environment for optimising plant growth rates while minimising energy usage. Carbon dioxide concentration is also one of the best ...


    By Edinburgh Sensors Ltd

  • Performance-Based Measurement Systems

    Many of the Environmental Protection Agency's (EPA's) methods used to monitor air, water and soil for environmental contaminants prescribe step-by-step details on how the chemical analysis must be conducted and prohibit any deviations or variations. The EPA has recognized that monitoring equipment and technology have improved tremendously over the last few years; that environmental media do not ...


    By WSP | Parsons Brinckerhoff

  • Fungal Pathogens Identified by PCR and DNA Sequencing

    Aspergillus is a type of fungus that is commonly found in the environment and in buildings that have suffered water damage or elevated humidity levels.  For people with weakened immune systems, breathing Aspergillus spores can lead to infections. According to the Centers for Disease Control and Prevention (CDC), “Aspergillosis is an infection caused by a fungus called ...


    By EMSL Analytical, Inc.

  • Do People in Properties near Landfills need to be Concerned about Health & Safety Issues Related to Odors?

    Many residential communities and businesses have been built over the years close to landfills as towns and cities have grown. For people working or living near a landfill, one telltale sign of a landfill’s presence is often unpleasant odors. Landfill gases are formed when buried waste decomposes due to microorganisms or volatizes as the waste changes from a liquid or solid to a ...


    By EMSL Analytical, Inc.

  • Soil Contamination and Possible Threats to Human Health

    In 2007, the city of Salisbury, North Carolina, purchased a piece of land that was the location of a former service station. The property had been given a clean bill of health in 1991 and again in 2007 just before the property was purchased. Last year, the city began site preparations to build a new central office for the local schools when soil contamination was found. It turns out ...


    By EMSL Analytical, Inc.

  • How Can TO-15 Help You Solve Your Next IAQ Problem?

    Untitled Document Have you ever been asked to investigate unpleasant odors in a home or at the workplace? Are occupants developing headaches or a feeling of nausea? ...


    By EMSL Analytical, Inc.

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