Yan Lu-Chun, Liu Jie-Min, Fu Hui-Ting, Sun Yuan, Lin Wen-Hui
Huan Jing Ke Xue. 2013 Dec;34(12):4743-6.
Odor pollution has become a serious environmental problem arising from volatile organic compounds (VOCs) and other pollutants. But the studies on odor intensity and other olfactory evaluations are seriously influenced by the diversity, distinct concentration fluctuation and complex interaction of pollutants. In order to explore the relationship between odor intensity and components concentrations of odor mixture, several typical VOCs in indoor environment were used to simulate odor mixtures. A panel of six sensory assessors was employed to rate the odor intensities of the mixture and its unmixed components. The outcome showed that the presence of an odorant barely influenced the odor intensity of the mixture when its nature logarithm of odor activity value (OAV) was lower than 20% of the mixture's total amount. The application of this method as a pretreatment method for the odor mixture could apparently simplify the studies on odor interaction and olfactory evaluation.
气味污染已成为由挥发性有机化合物（VOCs）和其他污染物引发的严重环境问题。但关于气味强度及其他嗅觉评估的研究受到污染物多样性、明显的浓度波动和复杂相互作用的严重影响。为探究气味混合物的气味强度与成分浓度之间的关系，采用室内环境中几种典型的VOCs来模拟气味混合物。聘请了由六名感官评估员组成的小组对混合物及其未混合成分的气味强度进行评级。结果表明，当气味活性值（OAV）的自然对数低于混合物总量的20%时，一种气味剂的存在对混合物的气味强度几乎没有影响。该方法作为气味混合物的预处理方法的应用显然可以简化气味相互作用和嗅觉评估的研究。
