Noise pollution and hearing loss in one of the oil industries
Introduction: Nowadays, noise exposure is one of the most important industrial health problems. Noise exposure can cause hearing loss and many other health problems. So, paying attention to the noise exposure problem should be of main priority in industrial health programs. This study was conducted in an oil producing region, aimed to assess noise pollution and noise induced hearing loss. Methods: In this descriptive analytical study, study cases were working in a noise producing industry. 55 workers randomly selected as a case group and 55 persons who were working in the administrative department were selected as control group. First, the noise producing source was defined and then sound levels were measured by means of sound level definition and the hearing loss. Data analysis was by t-test and correlation between noise hearing loss factors, using SPSS statistical software. Results: Main noise sources were gas turbines, compressors, diesel generators, fans and gas containing pipes. The results of noise level measurement show that noise level at workplaces is higher than threshold limit value (P<0.001). Analyzing the audiometric results show that in all frequencies hearing threshold level of exposed workers is greater than hearing threshold of non exposed workers and the workers exposed to noise levels more than 85dB have increased hearing loss at high frequencies (P<0.001). Conclusion: It can be concluded that oil industry is among the industries having a hazard of hearing loss and other noise induced health disorders. In addition this study shows inefficiency of noise control methods and hearing preservance programs in the studied oil industry.
Introduction: Occupational noise exposure induced hearing loss is recognized as one of the most harmful factors in industries. Hearing loss is one of the 10 top works–related diseases. This study is to determine the existence of noise pollution in the workplace and probability of its hearing injury among exposed workers in Sarkhoon refinery in 2008, Bandar Abbas, Iran Methods: In this cr...متن کامل
This paper presents noise problems associated with the use of air-turbine drills in dental practice. Two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in Tehran. The results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. Most of the energy from...متن کامل
Background and Aim: Autotoxic substances such as JP-4 jet fuel can have negative effects on the auditory system by the various means such as cochlear dysfunction. The purpose of this study was to investigate the combined effects of exposure to JP-4 jet fuel and noise on hearing loss in rats, to determine the possible interference effects of these two risk factors on rat auditory system. Methods...متن کامل
از محوری ترین اثراتی که یک فیلم سینمایی ایجاد می کند دیالوگ هایی است که هنرپیش گان فیلم میگویند. به زعم یک فیلم ساز, یک شیوه متأثر نمودن مخاطب از اثر منظوره نیروی گفتارهای گوینده, مثل نیروی عاطفی, ترس آور, غم انگیز, هیجان انگیز و غیره, است. این مطالعه به بررسی این مسأله مبادرت کرده است که آیا نیروی فراگفتاری هنرپیش گان به مثابه ی اعمال گفتاری در پنج فیلم هالیوودی در نسخه های دوبله شده باز تولید...15 صفحه اول
Cattle hair as a biomarker of lead pollution in the region of the Shiraz oil and petrochemical industries in Iran
This survey aimed to evaluate the level of lead (Pb) pollution in cattle in the vicinity of the Shiraz oil and petrochemical industries using hair samples. Dairy farms located within 10 km of the Shiraz oil and petrochemical industries were identified and divided into four groups. Farms that were located in the radial zones of 0.5-1.5 km, 1.5-5 km, 5-7 km, 7-10.5 km were considered as groups A,...متن کامل
Noise presents health and social problems in industrial operations, and is mainly related to machinery used in the industries. The present study was conducted in the different utilities industries in Jeddah Industrial Estate (JIE), in order to assess the magnitude of the problem of industrial noise exposure there in an endeavor to propose remedial controls to the problem. Noise was measured in ...متن کامل
دوره 11 شماره None
صفحات 121- 126
تاریخ انتشار 2007-07
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
کلمات کلیدی برای این مقاله ارائه نشده است