道路交通噪声影响人体心电指标的规律研究  

Exploring the rule of road traffic noise affecting human electrocardiogram indicators

作　　者：王书云[1] 闫春雨[1] 刘冰玉[1] 

机构地区：[1]北京市市政工程研究院,北京100037

出　　处：《环境污染与防治》2015年第7期50-54,共5页Environmental Pollution & Control

基　　金：国家自然科学基金青年基金资助项目(No.51108031)

摘　　要：借助多功能动态生理检测仪、现场道路交通噪声信号采集系统及室内道路交通噪声信号回放系统等精密仪器设备,研究了道路交通噪声对人体心电的短时影响,并运用统计学、时间序列理论对噪声影响心电指标的规律进行了分析,提出了一种解释道路交通噪声影响人体心电指标规律及确定噪声安全阈值的理论方法。结果表明,不同噪声声压级对心电低频(LF)、高频(HF)之比(LF/HF)时间序列的自相关系数衰减速率影响不同,声压级越高,LF/HF时间序列的自相关系数衰减到0.500时的速率越慢,经历的延迟期越长;当道路交通噪声超过43dB时,有可能对人体心电状态造成潜在的影响。The short-term impact on human electrocardiogram caused by road traffic noise was studied by the aid of precise instruments such as multifunctional dynamic physiological detector, signal acquisition system of road traffic noise and signal playback system of indoor road traffic noise. The mechanism of road traffic noise affecting elec- trocardiogram was analyzed using statistics and time series theory. A method of illustrating road traffic noise affecting electrocardiogram and defining noise safety threshold was proposed. The results showed that different noise sound lev- els had different influence on the attenuation speed of LF/HF autocorrelation coefficient. The bigger the sound level was, the slower the LF/HF autocorrelation coefficient decays to 0.500 and the more the lag＇s number was. When the sound level of road traffic noise exceeded 43 dB,road traffic noise was likely to result in a potential impact on human health.

关 键 词：道路交通噪声 评价 时间序列 规律 阈值 

分 类 号：X593[环境科学与工程—环境工程]