Iran Occupational Health Journal
سلامت كار ايران
ioh
Medical Sciences
http://ioh.iums.ac.ir
136
journal136
1735-5133
2228-7493
10.61186/ioh
fa
jalali
1386
6
1
gregorian
2007
9
1
4
3
online
1
fulltext
fa
بررسی آلودگی صوتی در منطقه نفتی لاوان و تعیین اثر محصور سازی منابع مولد صدا بر کاهش تراز فشار صدا
Evaluation of noise pollution in oil extracting region of Lavan and the effect of noise enclosure on noise abatement
ارزیابی و مدیریت ریسک
Assessment and risk management
پژوهشي
Research
<p align="right">چکیده</p>
<p> <strong>Background and aims</strong> </p><p> <strong></strong>Overexposure to industrial noise pollution induce hearing loss workers. Occupational hearing loss may cause interference whit oral communication, so it may increase the risk of occupational accidents in workplace as well as affects whit social activities. This study was conducted on Lavan Island, are of oil extracting regions in the south of Iran. The object of this study was to evaluate noise pollution and determining the effect of noise enclosure on noise abatement. </p><p> <strong>Methods</strong> </p><p> <strong></strong>The noise sources were recognized and noise pressure level was measured by CEL- 440. Noise dose of the exposed workers in high level noise area were measured by CEL 272. </p><p> <strong>Results</strong> </p><p> <strong></strong>Major noise sources were gas turbines, diesel generators, compressors, fans and gas containing pips, noise contour map revealers that noise level were higher than the recommended national exposure limit. The results of workers noise dose show that their noise exposure were higher than the recommended value, (p<0.001). Finally, by using the results of noise frequency analysis of different noise sources, the noise pressure level of each sources was determined in terms of enclosing them. </p><p> <strong>Conclusion</strong> </p><p> <strong></strong>By enclosing the noise sources, noise pressure levels can be lowered douse to acceptable levels but limitation of applying enclosure should be regarded. </p><p> </p>
آلودگی صوتی،استخراج نفت،جزیره لاوان،محصور سازی
Noise pollution, oil extraction, Lavan Island, enclosure
49
56
http://ioh.iums.ac.ir/browse.php?a_code=A-10-3-7&slc_lang=fa&sid=1
P.
Nassiri
پروین
نصیری
1360031947532846003026
1360031947532846003026
Yes
Tehran University of Medical
M.
Zare
مهدی
زارع
1360031947532846003027
1360031947532846003027
No
Tehran University of Medical Sciences.
F.
Golbabaei
فریده
گابابایی
1360031947532846003028
1360031947532846003028
No
Tehran University of Medical Sciences, Tehran, Iran.