نتایج جستجو برای: noise pollution control

تعداد نتایج: 1563956  

ژورنال: سلامت کار ایران 2018

Abstract: Background and aims: Using water pump in residential buildings to provide the required water pressure is accompanied by noise pollution and the annoyance of residents. So, the purpose of this study is to reduce water pump noise pollution with designed acoustic curtains in a residential building of Qazvin city.   Methods: The mean sound pressure level was measured before and ...

Journal: :تحقیقات نظام سلامت 0
امین پراور کارشناس ارشد، گروه مهندسی محیط زیست، دانشکده محیط زیست و انرژی، دانشگاه آزاد اسلامی، واحد علوم تحقیقات تهران، تهران، ایران محمد رضا منظم استاد، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشکاه علوم پزشکی تهران، تهران، ایران نبی اله منصوری دانشیار، گروه مهندسی محیط زیست، دانشکده محیط زیست و انرژی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، تهران، ایران مسعود مطلبی کاشانی دانشیار، گروه مهندسی بهداشت حرفه ای، دانشکده بهداشت، دانشگاه علوم پزشکی کاشان، کاشان، ایران

background : studies have shown that noise pollution has harmful effects on human health. the sound of traffic is the main source of noise pollution in cities. the purpose of this study was to determine noise pollution using a geographical information system (gis) in the main streets of kashan, iran. methods: in this study, 180 noise samples were collected from 20 regions of the main streets in...

Akbar Scandari, Alireza Mashkori, Hossein Jafari Mansoorian, Mohammad Fahiminia, Narges Khanjani, Samira Norzaee, Zahra Ahmadli,

Background & Aims of the Study: Noise is one of the most important environmental pollutants. It is a global health problem, especially among industrial workers. Since there was little information about noise levels in small workshops in Qom city, this study aimed to evaluate noise in small workshops and compare it with national standards. Materials and Methods: This was a cross-sectional stu...

We investigated the issue of noise pollution in the Bidboland gas refineryby noise measurement and surveys. The Bidboland gas refinery has several process units.The sound pressure levels were measured at several places, such as units of 200, 300,400, 500, boiler, powerhouse area, cooling towers pumps, and maintenance area, and thecorresponding noise maps were produced by using sound plan softwa...

Journal: :تحقیقات نظام سلامت 0
رستم گلمحمدی دانشیار گروه مهندسی بهداشت حرفه‎ای، دانشکده بهداشت و مرکز تحقیقات علوم بهداشتی، دانشگاه علوم پزشکی همدان، همدان، ایران محسن علی آبادی ستادیار گروه مهندسی بهداشت حرفه‎ای، دانشکده بهداشت، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی همدان، همدان، ایران ابراهیم درویشی عضو مرکز تحقیقات بهداشت محیط و مربی گروه مهندسی بهداشت حرفه‎ای، دانشکده بهداشت، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی کردستان، سنندج، ایران

background: in the steel industry, coke-fueled furnaces are used for smelting iron ore to produce cast iron are considered as sources of annoying noise.this study aims to evaluate the noise pollution blast furnace and sound source characteristics in order to present noise control measures in the steel industry. methods: measurement of noise level and its frequency analysis was performed using s...

Journal: Pollution 2016

We investigated the issue of noise pollution in the Bidboland gas refineryby noise measurement and surveys. The Bidboland gas refinery has several process units.The sound pressure levels were measured at several places, such as units of 200, 300,400, 500, boiler, powerhouse area, cooling towers pumps, and maintenance area, and thecorresponding noise maps were produced by using sound plan softwa...

F.S Sajjadi Gh Hamidi M Salami S.A Talaei

Background: It is believed that cognitive processing is easily disturbed by incompatible environmental stimulations. Many studies have shown that prenatal stress affects fetal brain development. The aim of this study was to evaluate the effect of noise pollution exposure during conception period on neural activity of hippocampus CA1 area in male rat offspring. Methods: Four groups of rats inclu...

Journal: :مجله دانشگاه علوم پزشکی قم 0
اصغر رجب زاده asghar rajabzadeh jundishapur university of medical sciencesدانشگاه علوم پزشکی جندی شاپور قاسم ساکی ghasem saki jundishapur university of medical sciencesدانشگاه علوم پزشکی جندی شاپور مسعود حمادی masoud hemadi jundishapur university of medical sciencesدانشگاه علوم پزشکی جندی شاپور علی خدادادی ali khodadadi jundishapur university of medical sciencesدانشگاه علوم پزشکی جندی شاپور علیرضا سرکاکی ali reza sarkaki jundishapur university of medical sciencesدانشگاه علوم پزشکی جندی شاپور

background and objectives: noise pollution has a high prevalence among the environmental pollutions and is considered as a teratogenic agent for reproductive system. this study was performed with the purpose of evaluation of the effect of honey and vitamin e on sex hormone levels in male rats exposed to noise pollution. methods: twenty-four adult male rats with the mean weight of 200±20g were r...

Journal: :iranian journal of environmental sciences 0
a. r. noorpoor associate professor, graduate faculty of environmental, university of tehran, tehran, iran m. bayatian phd student in professional hygiene, faculty of public health, islamic azad university, tehran, iran s. motaghed msc student in chemical engineering, university of petroleum, tehran, iran a. jamshidi moghadam bsc student in professional hygiene, university of medical science, tehran, iran n. rahmati msc. student in environmental science, faculty of science and research, islamic azad university, tehran, iran

we investigated the issue of noise pollution in the bidboland gas refineryby noise measurement and surveys. the bidboland gas refinery has several process units.the sound pressure levels were measured at several places, such as units of 200, 300,400, 500, boiler, powerhouse area, cooling towers pumps, and maintenance area, and thecorresponding noise maps were produced by using sound plan softwa...

Journal: :journal of research in health sciences 0
rostam golmohammadi omid giahi mohsen aliabadi ebrahim darvishi

background: noise pollution is currently a major health risk factor for workers in industries. the aim of this study was to investigate noise pollution and implement a control intervention plan for blast furnace in a steel industry. methods: the measurement of sound pressure level (spl) along with frequency analysis was done with the sound-level-meter cell-450 . personal noise exposure was perf...

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