生活環境における騒音性状の分析と騒音集積状況に関する研究

概要

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This paper is a report of the investigation of properties of noises and noise exposure in life environment. Aircraft noise, traffic noise, factory noise, and construction noise have long been investigated in detail but the research for noises in life environment has just been started. The noises which were chosen as the object of this study were tape-recorded and the frequency distribution was analysed. Noise exposure meters were used for complex noises made by various houseworks etc. By this measurement only, the sound level of noises from a household electric appliance like a washing machine or a vacuum cleaner, or plumbing equipments is 65-85 dB A. According to the measurement by a noise exposure meter during housework like cooking or washing, a worker exposes herself to 50 dB A or more noises in about 30% of the working time. As seen from these examples, the sound level in various life environments is equivalent to traffic noise level on the national road (2 lanes). Noises in life environment are found to have numerous problems.
明治大学の論文