北京供暖季卧室环境与睡眠质量关联性研究
摘要：为了解卧室环境特点和居民睡眠状况，并探究两者之间的关联性，于供暖季在北京城镇地区随机调研了48名住户。测试期间对卧室温度、湿度、CO2浓度连续测量了一整晚，通过睡眠手环监测睡眠情况，通过问卷调查收集受试者入睡前和醒来后对卧室的环境评价，以及当晚睡眠情况的主观评价。结果发现：被调查卧室热环境良好，但近80%卧室平均CO2体积分数高于1 000×10-6。通过睡眠手环测量的客观睡眠指标与通过问卷获得的睡眠主观评价指标存在显著相关。室内CO2浓度与睡眠潜伏时长存在显著正相关。当室内空气质量评价越高时，受试者深度睡眠时间占比越高，入睡时间越短，入睡和起床越容易，对于睡眠总体满意度越高。该研究表明降低室内CO2浓度，提升室内空气质量评价，有利于改善睡眠质量。
关键词：卧室空气质量CO2浓度睡眠质量实测调研
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[4] BEKÖG,LUND T,NORS F,et al.Ventilation rates in the bedrooms of 500Danish children[J].Building and environment,2010,45(10):2289-2295．
[5] LIU W,HUANG C,SHEN L,et al.Associations between natural ventilation for the child's bedroom during night and childhood asthma in Shanghai,China[J].Procedia engineering,2015,121:501-505．
[6] KIM M,CHUN C,HAN J.A Study on bedroom environment and sleep quality in Korea[J].Indoor and built environment,2010,19(1):123-128．
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[10] BUYSSE D J,REYNOLDS C F,MONK T H,et al.The Pittsburgh sleep quality index:a new instrument for psychiatric practice and research[J].Psychiatry research,1989,28(2):193-213．
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[13] GUNNARSEN L,FANGER P O.Adaptation to indoor air pollution[J].Environment international,1992,18:43-54．
[14] SUN W,CHEONG K W D,MELIKOV A K.Subjective study of thermal acceptability of novel enhanced displacement ventilation system and implication of occupants'personal control[J].Building and environment,2012,57:49-57．
[15] 中国建筑科学研究院．民用建筑供暖通风与空气调节设计规范：GB 50736-2012[S]．北京：中国建筑工业出版社，2012:6．
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Effect of bedroom environment on sleep quality in Beijing during heating season
Abstract: In order to investigate the bedroom environment, sleep quality of residents and the association with bedroom environment and sleep quality, this study randomly investigates 48 households in the urban area of Beijing during the heating season. Bedroom environment parameters, including temperature, relative humidity and CO2 concentration, are recorded during the whole measured night. Objective sleep quality is measured by an actigraphy sensor. Subjective assessments on sleep quality and environmental perceptions are collected by paper-based questionnaires before and after sleep. The results indicate that the thermal and humid conditions of bedrooms during the measured night are in good condition. Nearly 80% of surveyed bedrooms have an average CO2 concentration above 1 000×10-6. There is a significant correlation between objective sleep quality measured by actigraphy sensor and subjective sleep quality collected by questionnaires. Indoor CO2 concentration is significantly and positively correlated with sleep onset latency. When bedroom air quality perception is higher, subjects have a higher deep sleep ratio and lower sleep onset latency, and they report feeling easier to fall asleep, easier to get up, and more satisfied with sleep. This study indicates that reducing indoor CO2 concentration and improving indoor air quality evaluation are beneficial to improve sleep quality.
Keywords: bedroom; air quality; CO2 concentration; sleep quality; field investigation;
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