Volatile Organic Compounds In Normal Human Exhaled
Breath: A Long Neglected Pollutant Source
Author(s)
X. Sun & X. Yang
Abstract
At present, indoor VOCs pollution has widespread concern. However, for human
emission of VOCs, fundamental data was in shortage in the field of indoor air
quality (IAQ). In this study, 11 male subjects without a smoking habit, 12 female
subjects without a smoking habit and 12 male subjects with a smoking habit were
selected. Their samples of exhaled breath were collected and concentrated by
sampling bags and sorbent tubes, and analyzed by gas chromatography-mass
spectrometry (GC/MS). 135 VOCs were observed in all 35 samples. An average
breath sample contained 79.7 VOCs (SD16.2, range 43–110) were obtained, 12
VOCs were observed in all 35 subjects. Furthermore, quantitative analysis of main
indoor pollutants: benzene, toluene, xylene and naphthalene were performed, as
well as TVOC. The effect of gender was found to be not as strong a factor as the
effect of the smoking habit. Exhaled VOCs of female subjects were of higher
concentration than those of male subjects. Exhaled VOCs of subjects with a
smoking habit were more diverse and of higher concentration.
Keywords: volatile organic compounds, exhaled breath, indoor air quality.
Keywords
volatile organic compounds, exhaled breath, indoor air quality
Related Book
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