PILOT STUDY ON THE METHOD FOR MODELLING THE TIME SERIES EMISSION RATE OF VORATILE ORGANIC COMPOUNDS EMITTED FROM POLYURETHANE

摘要

Building materials used indoors usually emit volatile organic compounds (VOCs) into the interior space. It has been emphasized to reduce the exposure rate of humans to indoor air pollutants and to improve the quality of indoor air by the use of less polluting materials. Comparative studies of emission measurements carried out by different laboratories on such materials are regarded particularly important in view of their utilization for material emission databases. Small scale chambers have been used to develop emission rate data of VOCs.These tests involve placing samples in the chambers and measuring VOC concentrations at various times. The concentration versus time data are used to determine the parameters of emission rate models. The purpose of this study is to estimate long term VOC emission rates emitted from polyurethane using empirical regresion models.