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Real Time Monitoring of VOCs
Historical real-time screening techniques include several portable VOC sampling instruments that can give instant results for TVOCs as well as individual VOCs. Although their precision and detection limits are generally not as good as equivalent analytical laboratory...
When to sample for VOCs
Sampling for VOCs should only be done after source elimination has been considered as a first step. If this is not possible, or too expensive, sampling could then be considered. The source-pathway-receptor relationship will have characteristics that will influence the...
What Affects Indoor Air Quality in Commercial Buildings
When it comes to indoor air quality in schools, hospitals, government offices, private businesses and other commercial buildings, the standards are different from those of residential homes. Commercial buildings are generally much larger and may house a great number...
When to Sample VOCs
Sampling for VOCs should only be done after source elimination has been considered as a first step. If this is not possible, or too expensive, sampling could then be considered. The source-pathway-receptor relationship will have characteristics that will influence the...
Commonly Used VOC’s and Sources
For more information on VOC's, best practices and how to deal with them, go to our Module: https://iaqresource.ca/wp-content/uploads/2019/06/CCIAQB-Module-2-Eng.pdf
Best Management Practices
Best management practices (BMPs) for indoor air quality are procedures implemented during the planning, construction and operation of buildings to reduce exposure and emission of pollutants. For example, many building operators have established BMPs for maintenance...
Complaint Investigations of IAQ
Complaints by occupants about air quality may require building operators and facility managers to respond with an IAQ assessment that includes VOC sampling. The first step is to use interviews and walk-through inspections to determine symptoms, odours, timing, related...
Volatile Organic Compounds
Volatile organic compounds are chemicals that contain carbon, hydrogen and oxygen and are gases at room temperature. The volatility, polarity, water solubility, and reactivity of a VOC affect the choice of sampling methods. To assess the influence or relevant...
10 Reference Documents for #IAQ
Indoor air quality is a relatively new and an evolving science. Several important reference documents have been created and are available on the Internet. The CCIAQB provides these references as useful sources, but does not endorse the organizations, or the literature...
Understanding IAQ: Key Factors
This model shows the interrelationship among key factors that are discussed in the series of modules that are part of this guide. A very simple mass balance model based on this figure could be written as: Consider the following: Co: introducing contaminated air is a...