by moekerr | Mar 29, 2020 | HVAC, IAQ Case Studies, IAQ Experiences, IAQ Module Excerpts
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...
by moekerr | Mar 29, 2020 | HVAC, IAQ Case Studies, IAQ Experiences, IAQ for Building Managers, IAQ Module Excerpts
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...
by moekerr | Mar 29, 2020 | HVAC, IAQ Case Studies, IAQ Experiences, IAQ for Building Managers, IAQ Module Excerpts
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...
by moekerr | Mar 29, 2020 | HVAC, IAQ Case Studies, IAQ Experiences, IAQ for Building Managers, IAQ Module Excerpts
This post defines common IAQ terms (adapted from the U.S. Environmental Protection Agency (EPA)) and some abbreviations used in many of the modules. Text in square brackets [] has been added by the authors of this document. Air changes per hour (ACH): the amount of...
by moekerr | Mar 29, 2020 | HVAC, IAQ Case Studies, IAQ Experiences, IAQ for Building Managers, IAQ Module Excerpts
The goal of the Canadian Committee on Indoor Air Quality and Buildings is to improve indoor air quality in buildings and, ultimately, the health of occupants, by providing a national forum and clearinghouse for ‘best-of-knowledge’ information on the design...