Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments

Atsushi Mizukoshi; Kazukiyo Kumagai; Naomichi Yamamoto; Miyuki Noguchi; Kazuhiro Yoshiuchi; Hiroaki Kumano; Yukio Yanagisawa

Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments

Atsushi Mizukoshi, Kazukiyo Kumagai, Naomichi Yamamoto, Miyuki Noguchi, Kazuhiro Yoshiuchi, Hiroaki Kumano, Yukio Yanagisawa

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

While various VOCs are known to show neurotoxic effects, the detailed mechanisms of VOCs on autonomic nervous system have not been fully understood partly because objective and quantitative measures to indicate neural abnormalities are still under development. Nevertheless, heart rate variability (HRV) has been recently proposed as an indicative measure of the autonomic defect. In this study, we used HRV as an indicative measure of the autonomic defect to relate their values to the personal concentrations of VOCs measured by a real-time VOC monitor. The measurements were conducted to 7 healthy subjects for 24 hours. The results showed HF powers were decreased for 6 subjects when the TVOC concentration changes were high, indicating the suppression of parasympathetic nervous induced by the exposure to VOCs. The present study indicated these real-time monitoring was useful to characterize the trends of VOC exposures and their effects on autonomic nervous system. Application of the present method is expected to lead to diagnosis and cure for the patients such as MCS and sick building syndrome in the future.

Original language	English
Title of host publication	IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
Subtitle of host publication	Sustainable Built Environment
Pages	519-522
Number of pages	4
Publication status	Published - 2007 Dec 1
Externally published	Yes
Event	6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007 - Sendai, Japan Duration: 2007 Oct 28 → 2007 Oct 31

Publication series

Name	IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment
Volume	1

Conference

Conference	6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007
Country	Japan
City	Sendai
Period	07/10/28 → 07/10/31

Keywords

Heart rate variability (HRV)
Hotter monitor
Real-time assessment
VOCs

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

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Cite this

Mizukoshi, A., Kumagai, K., Yamamoto, N., Noguchi, M., Yoshiuchi, K., Kumano, H., & Yanagisawa, Y. (2007). Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments. In IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment (pp. 519-522). (IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment; Vol. 1).

Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments. / Mizukoshi, Atsushi; Kumagai, Kazukiyo; Yamamoto, Naomichi; Noguchi, Miyuki; Yoshiuchi, Kazuhiro; Kumano, Hiroaki; Yanagisawa, Yukio.

IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment. 2007. p. 519-522 (IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mizukoshi, A, Kumagai, K, Yamamoto, N, Noguchi, M, Yoshiuchi, K, Kumano, H & Yanagisawa, Y 2007, Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments. in IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment. IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, vol. 1, pp. 519-522, 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007, Sendai, Japan, 07/10/28.

Mizukoshi A, Kumagai K, Yamamoto N, Noguchi M, Yoshiuchi K, Kumano H et al. Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments. In IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment. 2007. p. 519-522. (IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment).

Mizukoshi, Atsushi ; Kumagai, Kazukiyo ; Yamamoto, Naomichi ; Noguchi, Miyuki ; Yoshiuchi, Kazuhiro ; Kumano, Hiroaki ; Yanagisawa, Yukio. / Real-time measurements of VOC exposure and heart rate variability in indoor and outdoor environments. IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment. 2007. pp. 519-522 (IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment).

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AU - Yoshiuchi, Kazuhiro

AU - Kumano, Hiroaki

AU - Yanagisawa, Yukio

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N2 - While various VOCs are known to show neurotoxic effects, the detailed mechanisms of VOCs on autonomic nervous system have not been fully understood partly because objective and quantitative measures to indicate neural abnormalities are still under development. Nevertheless, heart rate variability (HRV) has been recently proposed as an indicative measure of the autonomic defect. In this study, we used HRV as an indicative measure of the autonomic defect to relate their values to the personal concentrations of VOCs measured by a real-time VOC monitor. The measurements were conducted to 7 healthy subjects for 24 hours. The results showed HF powers were decreased for 6 subjects when the TVOC concentration changes were high, indicating the suppression of parasympathetic nervous induced by the exposure to VOCs. The present study indicated these real-time monitoring was useful to characterize the trends of VOC exposures and their effects on autonomic nervous system. Application of the present method is expected to lead to diagnosis and cure for the patients such as MCS and sick building syndrome in the future.

AB - While various VOCs are known to show neurotoxic effects, the detailed mechanisms of VOCs on autonomic nervous system have not been fully understood partly because objective and quantitative measures to indicate neural abnormalities are still under development. Nevertheless, heart rate variability (HRV) has been recently proposed as an indicative measure of the autonomic defect. In this study, we used HRV as an indicative measure of the autonomic defect to relate their values to the personal concentrations of VOCs measured by a real-time VOC monitor. The measurements were conducted to 7 healthy subjects for 24 hours. The results showed HF powers were decreased for 6 subjects when the TVOC concentration changes were high, indicating the suppression of parasympathetic nervous induced by the exposure to VOCs. The present study indicated these real-time monitoring was useful to characterize the trends of VOC exposures and their effects on autonomic nervous system. Application of the present method is expected to lead to diagnosis and cure for the patients such as MCS and sick building syndrome in the future.

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