ASSESSMENT OF THE EFFECT OF OCCUPATIONAL NOISE ON WORKERS HEARING IN SMALL SCALE INDUSTRIES IN TEHRAN

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AGHILINEZHAD M.A.; ALI MOHAMMADI IRAJ; MOHAMMADI SABER; FALAHI MAJID

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Paper Information

Journal: Annals of Military and Health Sciences Research Year:2007 | Volume:5 | Issue:3 (SERIAL NUMBER 19) Page(s): 1305-1310

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Title

ASSESSMENT OF THE EFFECT OF OCCUPATIONAL NOISE ON WORKERS HEARING IN SMALL SCALE INDUSTRIES IN TEHRAN

Author(s)

AGHILINEZHAD M.A. | ALI MOHAMMADI IRAJ | MOHAMMADI SABER | FALAHI MAJID | Issue Writer Certificate

Keywords

EQUIVALENT SOUND PRESSURE LEVELQ3

HEARING LOSSQ3

SMALL SCALE INDUSTRIESQ3

Abstract

Background: In the last decades one of the effective adverse agents on workers health has been workplaces noise. This adverse agent exsit in SMALL SCALE INDUSTRIES and threatened workers health in this areas because of increasing SMALL SCALE INDUSTRIES and workers in our country, this study performed with subject "Determining the effect of noise on workers hearing in SMALL SCALE INDUSTRIES".Materials and Methods: In these study 109 workers, between SMALL SCALE INDUSTRIES workers selected for case group and the same for control group. First workers information was gathered with questionnaire and clinical periodic examinations, and then audiometeric test implemented. Noise indices measurement performed in the workers with sound level meter (CEL-440.480) with ISO 9612:1997 (E) Standards. Also octave - band frequency analyses carry out for case group workers in the workstations.Results: Results indicated that, mean and standard deviation of EQUIVALENT SOUND PRESSURE LEVEL (LAeqT) for case workers was 94.2±6.72 dBA and for control workers 84.87±3.97 dBA. In the case group the mean hearing threshold at 4K hz (31.07dB) was less than mean hearing threshold at 8K hz (35.59 dB). Multiple regression analyses indicated that exposure to noise was the primary, age and precedent the secondary predictor of HEARING LOSS.Conclusion: In this study, pierson correlation coefficient between age & HEARING LOSS and also between work duration & HEARING LOSS was taken. In these conditions, we can expect progression of HEARING LOSS with increase in work duration for occupied workers.

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References

ASSESSMENT OF NOISE POLLUTION AND ITS EFFECTS ON STONE CUT INDUSTRY WORKERS OF MALAYER DISTRICT

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APA: Copy

AGHILINEZHAD, M.A., ALI MOHAMMADI, IRAJ, MOHAMMADI, SABER, & FALAHI, MAJID. (2007). ASSESSMENT OF THE EFFECT OF OCCUPATIONAL NOISE ON WORKERS HEARING IN SMALL SCALE INDUSTRIES IN TEHRAN. ANNALS OF MILITARY AND HEALTH SCIENCES RESEARCH, 5(3 (SERIAL NUMBER 19)), 1305-1310. SID. https://sid.ir/paper/96557/en

Vancouver: Copy

AGHILINEZHAD M.A., ALI MOHAMMADI IRAJ, MOHAMMADI SABER, FALAHI MAJID. ASSESSMENT OF THE EFFECT OF OCCUPATIONAL NOISE ON WORKERS HEARING IN SMALL SCALE INDUSTRIES IN TEHRAN. ANNALS OF MILITARY AND HEALTH SCIENCES RESEARCH[Internet]. 2007;5(3 (SERIAL NUMBER 19)):1305-1310. Available from: https://sid.ir/paper/96557/en

IEEE: Copy

M.A. AGHILINEZHAD, IRAJ ALI MOHAMMADI, SABER MOHAMMADI, and MAJID FALAHI, “ASSESSMENT OF THE EFFECT OF OCCUPATIONAL NOISE ON WORKERS HEARING IN SMALL SCALE INDUSTRIES IN TEHRAN,” ANNALS OF MILITARY AND HEALTH SCIENCES RESEARCH, vol. 5, no. 3 (SERIAL NUMBER 19), pp. 1305–1310, 2007, [Online]. Available: https://sid.ir/paper/96557/en

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