Abstract: In this study, the impact of temperature(T=18, 23, and 28 ℃), relative humidity(RH=35%, 50%, 60%, and 75%), and air exchange rate (ACH=0.5, 1, and 2 h^-1) on the volatile organic compound (VOC) emission rate and concentration from plywood were investigated by small chamber testing for 5 days. Gas chromatography-mass spectrometer (GC-MS) was used to measure components of total volatile organic compound(TVOC). The experiment result showed that increasing temperature, RH and ACH accelerated VOC emission from plywood. The influence of environmental factors on VOC emission was only significant for initial emission. Few days later, the effect was not obvious. Arene compounds were the main compounds of TVOC emission from plywood, and the content of alkane compounds were the second. The emission rate of arene compounds was higher than that of alkane compounds. Environmental factors affected arenas compounds emission rate more obviously than alkane compounds. Toluene emission rate was the highest, m,p-xylene was the second, and the ethylbenzene was third. The influence of environmental factors on these three compounds had no major differences.

Key words: plywood, volatile organic compound(VOC), temperature, relative humidity, air exchange rate