西部人居环境学刊2025，Vol.40Issue(2)：51-57,7.
户外气味感知量化方法研究进展
The research progress of quantitative methods for outdoor olfactory perception
摘要
Abstract
In recent years,people pay more attention to the environmental quality of outdoor odor.As an important factor affecting people's outdoor recreation comfort,the quantitative measurement of odor perception is a necessary means to study the comfort level and health benefits of outdoor odor.However,the current quantification of olfactory perception faces various challenges,including the abundance and interconnectedness of olfactory perception parameters,as well as various measurement techniques and lack of standards.In order to provide reference recommendations for the selection or combined application of odor landscape research techniques in various scenes,this paper summarizes odor perception quantification techniques in three dimensions by analyzing pertinent domestic and international literature.These dimensions include odor concentration and intensity,odor range and frequency,and odor hedonic tone.In terms of odor concentration and odor intensity,odor concentration measurement is mainly based on the sniffer method,with a high degree of standardization.There are clear regulations on the training,number of sniffer and evaluation method,but there are problems such as the inability to continuously detect.In contrast,the portable odor detector has obvious advantages in timeliness and duration,and can achieve continuous detection.However,the response of the instrument to different odors is different,and the feedback values of the instrument under different odors cannot be compared with each other.At the same time,because of its high objectivity,portable odor detector has become an important auxiliary means for laboratory research on simulated odor concentration.Odor intensity is closely related to odor concentration and sensory threshold,and the quantitative method mainly relies on the subjective evaluation method combining sensory evaluation and scale.There is no unified standard for the specific procedure of the method,so the measured results are greatly affected by sample size and individual differences.In terms of odor range and odor frequency,odor range is mainly measured by Smellwalk,which can collect the perception data of fine particle size.Smellwalk are often supplemented with big data techniques such as crawling points of interest to broaden the scale of the study,or with instruments such as portable odor concentration meters to improve data objectivity.Due to the large variability of outdoor odor frequency,grid method and plume method are the main methods for odor frequency measurement,and specific execution procedures are specified by clear standards to strengthen the scientific conclusion.However,time and labor consumption are the main problems of this method,which leads to few studies on odor frequency measurement.Odor hedonic tone is the main research point of odor landscape at present,and there are many quantitative methods.Odor hedonic tone can be measured by multi-dimensional emotional model or scale,but this method cannot fully reflect the complex emotions caused by odor.In order to solve this problem,scholars combine the measurement of physiological indicators such as EEG,EDA,ECG,and fEMG to present the emotional changes caused by odor in real time.It should be noted that the measurement method of physiological indicators has high requirements on the experimental environment,and the data is limited by the accuracy of the instrument,which needs to be selected according to different scenarios.Reviewing the existing odor perception quantification technologies,subjectivity and individual differences are hard to avoid.At present,the objectivity of data is mainly improved by setting the conditions of sensory group members,combining odor instruments and big data technology.Therefore,in the future,the standardization research of odor sensory analysis,the integration and practice of technology methods in different fields such as artificial intelligence,medical psychology,materials and instruments will inevitably become a new research trend.关键词
户外气味环境/气味景观/气味感知/气味参数Key words
outdoor olfactory environments/smellscape/olfactory perception/odor parameters分类
土木建筑引用本文复制引用
王可,金荷仙..户外气味感知量化方法研究进展[J].西部人居环境学刊,2025,40(2):51-57,7.基金项目
国家自然科学基金面上项目(52278084) （52278084）
