Impact of humidity on formaldehyde and moisture buffering capacity of porous building material

The aim of this article is to present a validated model study the influence humidity on formaldehyde sorption building material and effect moisture buffering capacity hygroscopic porous indoor air environment. New empirical formulas proposed describe diffusion partition coefficients as functions based previous experimental data are incorporated in coupled pollutants transport simulation model. numerical that takes into account RH (or moisture) materials VOC can be used simulate emissions/sorption from materials. developed implemented environment SPARK (Simulation Problem Analysis Research Kernel) using finite difference technique. then applied hygric (FOR, water soluble VOC) behavior calcium silicate (CS) subjected different dynamic conditions formaldehyde. results obtained paper help emphasize importance new key parameter when selecting clean design because they contribute dampen variations. In addition, impact variation significant needed taken correctly predict concentration. also optimize performance IAQ building.