Noise levels in Johns Hopkins Hospital
Noise levels in Johns Hopkins Hospital
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DOI：
10.1121/1.2118327
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发表时间：
2005-12-01
影响因子：
2.4
通讯作者：
Chivukula, R
中科院分区：
文献类型：
--
作者：
Busch-Vishniac, IJ;West, JE;Chivukula, R
本文介绍了在巴尔的摩，马里兰州约翰霍普金斯医院的噪声调查的结果。结果包括等效声压级（L-eq）作为位置，频率和一天中的时间的函数。在所有地点和一天中的所有时间，L-eq表明存在严重问题。没有一个地点符合世界卫生组织的现行准则，对客观数据的审查表明，全世界的医院都是如此。平均等效声级在50-60 dB（A）范围内，平均时间为1 min、1/2和24 h。频谱在63-2000 Hz的倍频程上通常是平坦的，在较低的频率下具有较高的声级，并且在2000 Hz以上逐渐滚降。许多单位表现出很少，如果有的话，在夜间降低声级。过去45年来在各医院收集的数据表明，白天和夜间的噪音水平有增加的趋势。这些结果的影响是显着的病人，游客和医院工作人员。(c)2005年美国声学学会。
This article presents the results of a noise survey at Johns Hopkins Hospital in Baltimore, MD. Results include equivalent sound pressure levels (L-eq) as a function of location, frequency, and time of day. At all locations and all times of day, the L-eq indicate that a serious problem exists. No location is in compliance with current World Health Organization Guidelines, and a review of objective data indicates that this is true of hospitals throughout the world. Average equivalent sound levels are in the 50-60 dB(A) range for I min, 1/2, and 24 h averaging time periods. The spectra are generally flat over the 63-2000 Hz octave bands, with higher sound levels at lower frequencies, and a gradual roll off above 2000 Hz. Many units exhibit little if any reduction of sound levels in the nighttime. Data gathered at various hospitals over the last 45 years indicate a trend of increasing noise levels during daytime and nighttime hours. The implications of these results are significant for patients, visitors, and hospital staff. (c) 2005 Acoustical Society of America.