Experimental study on human physiological responses under different CO2 concentration in underground engineering

doi:10.16265/j.cnki.issn1003-3033.2020.12.024

Abstract

Abstract: In order to prevent physiological damage caused by high CO₂ level and ensure security of occupants in underground space, their physiological responses to CO₂ level were analyzed based on human isolation experiment. A natural isolation experiment was performed with 170 subjects for 12 h in an underground civil air defense project in Suzhou. Changes of their heart rate, blood pressure, blood oxygen saturation, electroencephalogram, electrodermal activity, and electroencephalography were measured at different CO₂ levels (0.1%-1%), and HRV and electrodermal response were analyzed. The results show that there are no significant physiological responses when CO₂ concentration is no higher than 0.7%. When it rises to 0.85%, subjects' heart rate and HRV decrease obviously while low frequency (LF), high frequency (HF) and rapidly changing components of HRV and diastolic blood pressure all increase significantly. And as it grows to 1%, remarkable skin conductance and skin conductance level are recorded. Furthermore, suppressed alpha wave, increased beta wave andKC(Kolmgorov Complexity)complexity are also observed along with increase of CO₂level.

Key words: underground engineering, CO₂ level, physiological response, isolation experiment, heart rate variability(HRV)

CLC Number:

X912

TU Zhijun, GENG Shibin, LI Yong. Experimental study on human physiological responses under different CO₂ concentration in underground engineering[J]. China Safety Science Journal, 2020, 30(12): 173-179.

References

[1] 茅靳丰, 李永, 耿世彬, 等. 防护工程内部热环境保障的研究进展[J]. 暖通空调, 2012,42(9): 6-12.
MAO Jinfeng, LI Yong, GENG Shibin, et al. Research progress of thermal environment inside protection works [J]. Heating, Ventilating and Air Conditioning, 2012,42(9): 6-12.
[2] 张景钢, 杨诗涵, 索诚宇, 等. 高温高湿环境对矿工生理心理影响试验研究[J]. 中国安全科学学报, 2015,25(1): 23-28.
ZHANG Jinggang, YANG Shihan, SUO Chengyu, et al. Numerical simulation study of thermal comfort on high temperature and humidity mine [J]. China Safety Science Journal, 2015,25(1): 23-28.
[3] 胡松涛, 蒋雅萌, 王刚. 地铁车厢内热环境现状调查研究[J]. 暖通空调, 2015,45(7): 23-27.
HU Songtao, JIANG Yameng, WANG Gang. Investigation on indoor thermal environment of underground railway trains [J]. Heating, Ventilating and Air Conditioning, 2015,45(7): 23-27.
[4] LI Yong, GENG Shibin, ZHANG Xiaosong. Study of thermal comfort in underground construction based on field measurements and questionnaires in China[J]. Building and Environment, 2017,116(5): 45-54.
[5] AMPOFO F, MAIDMENT G, MISSENDEN J. Underground railway environment in the UK part 1: review of thermal comfort[J]. Applied Thermal Engineering, 2004,24(5/6): 611-631.
[6] LI Yong, YUAN Yanping, LI Chaofeng, et al. Human responses to high air temperature, relative humidity and carbon dioxide concentration in underground refuge chamber[J]. Building and Environment, 2018,131: 53-62.
[7] TSAI D H, LIN J S, CHAN C C. Office workers' sick building syndrome and indoor carbon dioxide concentrations[J]. Journal of Occupational and Environmental Hygiene, 2012,9(5):345-351.
[8] BAILEY J E, ARGYROPOULOS S V, KENDRICK A H, et al. Behavioral and cardiovascular effects of 7.5% CO₂ in human volunteers[J]. Depression and Anxiety, 2005,21(1):18-25.
[9] DIAPER A, NUTT D J, MUNAFO M R, et al. The effects of 7.5% carbon dioxide inhalation on task performance in healthy volunteers[J]. Journal of Psychopharmacology, 2012,26(4):487-496.
[10] MARESH C M, ARMSTRONG L E, KAVOURAS S A, et al. Physiological and psychological effects associated with high carbon dioxide levels in healthy men[J]. Aviation, Space and Environmental Medicine, 1997,68(1):41-45.
[11] SCHAEFER K E, HASTINGS B J, CAREY C R, et al. Respiratory acclimatization to carbon dioxide[J]. Journal of Applied Physiology, 1963,18(6):1071-1078.
[12] SLIWKA U, KRASNEY J A, SIMON S G, et al. Effects of sustained low-level elevations of carbon dioxide on cerebral blood flow and autoregulation of the intracerebral arteries in humans[J]. Aviation, Space and Environmental Medicine, 1998,69:299-306.
[13] GORTNER D, MESSIER A A, HEYDER E, et al. The effects of elevated atmospheric CO₂ on acid-base balance and red-cell electrolytes of FBM submarine crew members[R]. Naval Submarine Medical Research Lab, Groton Ct, 1971.
[14] KAJTAR L, HERCZEG L. Influence of carbon-dioxide concentration on human well-being and intensity of mental work[J]. Quarterly Journal of the Hungarian Meteorological Service, 2012,116: 145-169.
[15] ZHANG Xiaojing, WARGOCKI P, LIAN Zhiwei. Physiological responses during exposure to carbon dioxide and bioeffluents at levels typically occurring indoors[J]. Indoor Air, 2017,27: 65-77.
[16] LIU Weiwei, ZHONG Weidi, WARGOCKI P. Performance, acute health symptoms and physiological responses during exposure to high air temperature and carbon dioxide concentration[J]. Building and Environment, 2017,114: 96-105.
[17] 郭继鸿, 张萍. 动态心电图学[M]. 北京: 人民卫生出版社, 2003: 196-222.
GUO Jihong, ZHANG Ping, Ambulatory electrocardiography[M]. Beijing: People's Medical Publishing House, 2003: 196-222.
[18] 大熊辉雄[日]. 临床脑电图学[M]. 周锦华,译.北京:清华大学出版社, 2005: 69-76.

Experimental study on human physiological responses under different CO₂ concentration in underground engineering

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	LI Yan, HU Wenbin, ZHANG Xingyu, NAN Sirui, ZHOU Wenhui. Safety physiology characteristics of bicyclists on reverse riding conditions [J]. China Safety Science Journal, 2017, 27(9): 14-19.
[2]	LI Moxiao, SONG Yinghua, LYU Wei, WANG Zhe, FANG Danhui. Study on micro-mechanism of rockburst tendency of rock mass in underground engineering [J]. China Safety Science Journal, 2017, 27(3): 89-94.