title: Formaldehyde emission monitoring from a variety of solid wood, plywood, blockboard and flooring products manufactured for building and furnishing materials.
abstract: The measurements of formaldehyde emission (FE) from solid wood, plywood, flooring and blockboard used for building and furnishing materials were obtained using the European small-scale chamber (EN 717-1) and gas analysis (EN 717-2) methods to identify the major sources of formaldehyde among construction and wood products in the Czech Republic. The differences in the FE values reported for various wood products were a function of their structural differences. These results showed that the wood species, plywood type and thickness significantly affected the FE measured by EN 717-2 (P<0.001). The FE values from solid wood ranged between 0.0068 and 0.0036ppm and 0.084-0.014mg/m(2)h. The initial FE ranged from 0.006mg/m(3) for engineered flooring with polyvinyl acetate (PVAc) to 0.048mg/m(3) for painted birch blockboard. Furthermore, the FE dropped noticeably by the end of the measuring period, ranging between 0.006mg/m(3) for engineered flooring with PVAc and 0.037mg/m(3) for painted beech blockboard. Additionally, the initial FE was higher for the painted blockboard (0.035-0.048mg/m(3)) than for the uncoated boards (0.022-0.032mg/m(3)). In the first week after manufacturing, the FE was high, but the decrease in FE was noticeable at the two-week measurement for all of the materials, especially for the painted blockboards.
authors.affiliation: Department of Wood Processing, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic.
authors.forename: Martin
authors.initials: M
authors.lastname: Böhm
authors.forename: Mohamed Z M
authors.initials: MZ
authors.lastname: Salem
authors.forename: Jaromír
authors.initials: J
authors.lastname: Srba
mesh_terms: D003252:Construction Materials; D018153:Czech Republic; D005557:Formaldehyde / Q000032:analysis*; D014934:Wood / Q000737:chemistry*
chemical_list: D005557:Formaldehyde