A preliminary study on volatile organic compounds and odor in university dormitories:Situation,contribution,and correlation
作者机构：School of Architecture and Urban PlanningNanjing University22 Hankou RoadNanjing 210093China
出 版 物：《Building Simulation》 (建筑模拟（英文）)
年 卷 期：2023年第16卷第3期
页 面：379-391页
核心收录：
学科分类：0601[历史学-考古学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 1301[艺术学-艺术学理论] 07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0703[理学-化学]
基 金：supported by the National Natural Sciences Foundation of China(52278109).
主 题：indoor air quality volatile organic compounds odor activity value odor intensity sensory panel
摘 要：Many dormitories have a high population density,and occupants exposed to volatile organic compounds(VOCs)could suffer severe physical and mental issues,so it is important to ensure good indoor air quality(IAQ).Currently,indoor VOC analysis using only chemical concentration cannot accurately reflect the effect of odor on human comfort.Therefore,the sensory evaluation of indoor odor acts as a supplementary method for an IAQ assessment.Here,we measured indoor VOC concentrations in 10 dormitories under occupied and unoccupied conditions.The contribution of building materials and human-related emissions was analyzed.An odor activity value(OAV)was calculated using the VOC concentration and odorant threshold.In addition,recruited sensory odor panel members assessed the odor intensity of each dormitory and the correlation between odor intensity and chemical measurements was analyzed.The indoor total VOC(TVOC)concentration under occupied conditions ranged from 242.2 to 1063.1μg/m^(3),with a mean value of 454.1μg/m^(3).The TVOC concentration under unoccupied conditions varied from 97.2 to 1055.2μg/m^(3),with a mean value of 342.2μg/m^(3).The TVOC concentration of 90% of the dormitories under the two conditions met the national IAQ standards.An average of 53.6% indoor TVOC emissions are related to building materials,the outdoor-related TVOC concentration accounts for 15.7%,and the average human-related TVOC emissions are 1519.4μg/(h·person),which accounts for 30.7%.Compared to TVOC concentration,odor intensity-OAV(OAV_(sum),OAV_(max))could better characterize subjective and objective correlations.However,the goodness-of-fit is not satisfactory.Weber–Fencher s law has limitations in characterizing the correlation between odor intensity and OAV when applied to the indoor air mixture,based on this small-scale study.
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