Sensory evaluation and chemical analysis of exhaled and dermally emitted bioeffluents
Sensory evaluation and chemical analysis of exhaled and dermally emitted bioeffluents
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DOI：
10.1111/ina.12424
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发表时间：
2018-01-01
期刊：
影响因子：
5.8
通讯作者：
Tanabe, S.
中科院分区：
文献类型：
--
作者：
Tsushima, S.;Wargocki, P.;Tanabe, S.
创造了可以单独或一起（全身排放）对呼出的和皮肤排放的生物流出物进行采样的条件。五名衣着轻便的男性通过面罩将空气呼到另一个相同的房间，或者不戴面罩呼到他们所坐的房间；两个室的室外空气供应速率相同。室内呼出空气的二氧化碳浓度为2000 ppm。室温度为 23 摄氏度或 28 摄氏度，供应气流中存在或不存在臭氧。当存在经皮肤排出的生物流出物时，感知的空气质量（PAQ）不太可接受，并且气味强度比仅存在呼出的生物流出物时更高。空闲室中是否存在呼出的生物流出物对感官评估没有显着影响。在 28 摄氏度且存在臭氧的情况下，气味强度增加，并且在具有全身生物流出物的室内，PAQ 不太可接受。当存在经皮肤排出的生物流出物时，壬醛、癸醛、香叶基丙酮和 6-MHO 的浓度较高；当存在臭氧时，它们进一步增加。然后，角鲨烯的浓度下降，并在 28 摄氏度时再次上升。当占用空间通风不足时，皮肤排出的生物流出物似乎在感官滋扰中发挥了重要作用。
Conditions in which exhaled and dermally emitted bioeffluents could be sampled separately or together (whole-body emission) were created. Five lightly dressed males exhaled the air through a mask to another, identical chamber or without a mask to the chamber in which they were sitting; the outdoor air supply rate was the same in both chambers. The carbon dioxide concentration in the chamber with exhaled air was 2000 ppm. Chamber temperatures were 23 degrees C or 28 degrees C, and ozone was present or absent in the supply airflow. When dermally emitted bioeffluents were present, the perceived air quality (PAQ) was less acceptable, and the odor intensity was higher than when only exhaled bioeffluents were present. The presence or absence of exhaled bioeffluents in the unoccupied chamber made no significant difference to sensory assessments. At 28 degrees C and with ozone present, the odor intensity increased and the PAQ was less acceptable in the chambers with whole-body bioeffluents. The concentrations of nonanal, decanal, geranylacetone, and 6-MHO were higher when dermally emitted bioeffluents were present; they increased further when ozone was present. The concentration of squalene then decreased and increased again at 28 degrees C. Dermally emitted bioeffluents seem to play a major role in the sensory nuisance experienced when occupied volumes are inadequately ventilated.