Extracting the Critical Points of Formaldehyde (HCHO) Emission Model in Hot Desert Climate

Indoor air pollutants have various emission patterns and are influenced by indoor microclimate, the physical properties of building materials, types chemical substances. The difference in these affects prediction via simulation. This paper aims to extract factors that an important influence on selecting empirical models examining pattern formaldehyde (HCHO) from materials. As a methodology, Small Chamber Pollutant Emission Test was used for six different flooring wallpaper specimens, HCHO sampled analyzed using HPLC (High-Performance Liquid Chromatography). result showed higher linear relationship between intensity time, more appropriate first-order reduction model, such as flooring-A ( R 2 = .99), flooring-B .94), wallpaper-A wallpaper-C .98). materials is classified into three types: In type I .00–.11), substances reaches maximum after start experiment decreases relatively rapidly. Type II =.00–.41), having shape vertex with refined concentration ascending gentle descending which suitability significantly high section, III .33–.60), shows mild increase trend dropping sections. It indicates predicted value meaningful way entire area. Even though many previous studies focused section .51–.95), it confirmed characteristics initial also critical points simulation model selection since (.67–.70) (.77–.93) turned out statistically except (.02–.25).