The influence of temperature on the emission rate of volatile organic compounds (VOC) from four indoor materials was investigated in a small dynamic test chamber. The materials investigated were two carpets, a PVC flooring and a paint; the temperature range investigated was 23–50°C. The general trend was an increased initial emission rate and an increased decay rate with increasing temperature. The total emitted mass from paint is independent of temperature which means that bake‐out is expected to be successful. The total emitted mass of the carpets and the PVC flooring increased with temperature, which suggests an influence of chemical reactions. In these cases, bake‐out periods of a few days may be unsuccessful and the exposure of the population may be underestimated when using data from experiments performed at the (lower) standard temperature.
Sorption effects of a number of combinations of indoor materials and volatile organic compounds have been investigated. A limited number of experiments have been conducted to investigate the influence of parameters such as the adsorption time, the desorption time, the concentration of the pollutants and the temperature, on the sorption. Experiments were performed with vapours of single compounds and with mixtures of VOCs. All parameters have an influence on the sorption. A relatively quick screening method can be applied with mixtures of VOCs with a limited adsorption time and desorption time (6 h each). Air samples should be collected at the end of the adsorption time and during the desorption time.
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