plenum chamber
[AIVC, Air infiltration and ventilation glossary, 1992]:a chamber, at higher/lower pressure than surrounding air, that receives air before/after delivery to a conditioned space or combustion system.
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plug flow
(See piston flow)
Continue reading →pollutant
(See contaminant)
Continue reading →pollutant concentration
[AIVC, Air infiltration and ventilation glossary, 1992]:the concentration within a given portion of air of harmful or unpleasant contaminants such as noxious gases or dust particles. Concentrations are often expressed as time weighted values over 24 hours, a working day … Continue reading →
pollutant migration
[AIVC, Air infiltration and ventilation glossary, 1992]:the movement of indoor air pollutants throughout the building between rooms or zones.
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