Study and Assessment of Low Frequency Noise in Occupational Settings

• Autorzy: Shehap A. M. , Shawky H. A. , El-Basheer T. M.

Identyfikatory

DOI

10.1515/aoa-2016-0015

• Języki publikacji: EN

Abstrakty

EN

Low frequency noise is one of the most harmful factors occurring in human working and living environment. Low frequency noise components from 20 to 250 Hz are often the cause of employee complaints. Noise from power stations is an actual problem for large cities, including Cairo. The noise from equipments of station could be a serious problem for station and for environmental area. The development of power stations in Cairo leads to appearing a wide range of gas turbines which are strong source of noise. Two measurement techniques using C-weighted along side the A-weighted scale are explored. C-weighting is far more sensitive to detect low frequency sound. Spectrum analysis in the low frequency range is done in order to identify a significant tonal component. Field studies were supported by a questionnaire to determine whether sociological or other factors might influence the results by using annoyance rating mean value. Subjects included in the study were 153 (mean = 36.86, SD = 8.49) male employees at the three electrical power stations. The (C-A) level difference is an appropriate metric for indicating a potential low frequency noise problem. A-weighting characteristics seem to be able to predict quite accurately annoyance experienced from LFN at workplaces. The aim of the present study is to find simple and reliable method for assessing low frequency noise in occupational environment to prevent its effects on work performance for the workers. The proposed method has to be compared with European methods.

Słowa kluczowe

EN

low frequency noise; A-weighting; C-weighting; audible; method of assessment

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2016
• Tom: Vol. 41, No. 1
• Strony: 151--160
• Opis fizyczny: Bibliogr. 17 poz., tab., wykr.

Twórcy

autor

Shehap A. M.

• Department of Physics, Faculty of Science, Cairo University, Giza, Egypt

autor

Shawky H. A.

• Department of Acoustic, Mass and Force Metrology Division, National Institute for Standards NIS, Giza, Egypt

autor

El-Basheer T. M.

• Department of Acoustic, Mass and Force Metrology Division, National Institute for Standards NIS, Giza, Egypt

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.