Program

Poster Presentations

Day 2, June 11（Thu.）　　Room P (5F 501+502)

2P-34

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Study of Evaluation Method for Odors Inside Large Bus Cabins and Its Results

(¹TTC, ²ENV Sciences, ³AGAS, ⁴Tokai Univ., ⁵ISUZU MOTORS)
^oKazuhisa Uchiyama¹, Kunihiro Hoshino^2,3, Hidechika Matsui¹, Hiroshi Niwa¹, Yoshika Sekine⁴, Koichi Tatsu⁵

Research on air quality in public transportation, such as large buses, is more challenging than that for private vehicles. Compared with railways and ships, fewer studies have been reported. Passengers and usage patterns can be readily identified for private vehicles, whereas bus passengers change daily and operating conditions vary by route and timetable. Therefore, comprehensive air-quality evaluation requires multiple measurement approaches. This study reports the development of evaluation methods and the results of sensory odor tests and instrumental analyses. For odor analysis, both active and passive air sampling were conducted, and TD-GC-OID-TOFMS (thermal desorption-gas chromatography-olfactometry intensity device-time-of-flight mass spectrometry) was applied to evaluate air samples collected from the bus air-conditioning vents and from the cabin atmosphere. We focused on aldehydes, fatty acids, and other odorants that were considered to be emitted from the human body and clothing. This study also represents our first attempt to collect and analyze cabin air while passengers were on board.

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