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Development of a Combined Real Time Monitoring and Integration Analysis System for Volatile Organic Compounds (VOCs)
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Int. J. Environ. Res. Public Health 2010, 7(12), 4127-4138;

A Novel Methodology to Evaluate Health Impacts Caused by VOC Exposures Using Real-Time VOC and Holter Monitors

Tokyo Metropolitan Industrial Technology Research Institute, Nishigaoka, 3-13-10, Kita-ku, Tokyo 115-8586, Japan
Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa-no-ha 5-1-5, Kashiwa-shi, Chiba 277-8563, Japan
Environmental Health Laboratory Branch, California Department of Public Health, 850 Marina Bay Pkwy, Richmond, CA 94804, USA
Research and Education Center of Carbon Resources, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
Environmental Engineering Program, Yale University, 9 Hillhouse Ave., New Haven, CT 06520, USA
Japan Society for the Promotion of Science (JSPS), Ichiban-cho 8, Chiyoda-ku, Tokyo 102-8472, Japan
Department of Psychosomatic Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8655, Japan
Faculty of Human Sciences, Waseda University, Mikashima 2-579-15, Tokorozawa-shi, Saitama 359-1192, Japan
Author to whom correspondence should be addressed.
Received: 18 October 2010 / Accepted: 18 November 2010 / Published: 30 November 2010
(This article belongs to the Special Issue Indoor Air Pollution and Human Health)
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While various volatile organic compounds (VOCs) are known to show neurotoxic effects, the detailed mechanisms of the action of VOCs on the autonomic nervous system are not fully understood, partially 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 effects. In this study, we used HRV as an indicative measure of the autonomic effrects to relate their values to the personal concentrations of VOCs measured by a real-time VOC monitor. The measurements were conducted for 24 hours on seven healthy subjects under usual daily life conditions. The results showed HF powers were significantly decreased for six subjects when the changes of total volatile organic compound (TVOC) concentrations were large, indicating a suppression of parasympathetic nervous activity 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. View Full-Text
Keywords: real-time monitoring; VOCs; heart rate variability (HRV); Holter monitor real-time monitoring; VOCs; heart rate variability (HRV); Holter monitor
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Mizukoshi, A.; Kumagai, K.; Yamamoto, N.; Noguchi, M.; Yoshiuchi, K.; Kumano, H.; Yanagisawa, Y. A Novel Methodology to Evaluate Health Impacts Caused by VOC Exposures Using Real-Time VOC and Holter Monitors. Int. J. Environ. Res. Public Health 2010, 7, 4127-4138.

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