The Leadership in Energy and Environmental Design (LEED) Green Building Rating System, administered in Canada by the Canada Green Building Council (CaGBC), includes credits for indoor air quality (IAQ) management, which are intended to reduce IAQ problems resulting from construction or renovation to promote the comfort and well being of construction workers and building occupants.

LEED v4 and v4.1 provide projects with an opportunity to gain 2 LEED points, rather than 1 point under earlier LEED versions.  The IAQ testing procedures for LEED v4.1 are documented under Environmental Quality Credit: IAQ Assessment (Option 2),  This LEED credit provides two paths, which can be completed individually for 1 point, or can be combined for 2 points.

Path One: Particulates & Inorganic Gases includes Airborne Particulates (PM_2.5 and PM₁₀), Carbon Monoxide (CO) and Ozone (0₃).

Path Two: Volatile Organic Compounds (VOC's) includes Total VOC's, Formaldehyde, Acetaldehyde and 11 other Target VOC's.

Contact Christopher Collett and Associates Ltd. to learn more about the latest LEED v4.1 IAQ testing requirements.