نتایج جستجو برای: noise pollution
تعداد نتایج: 262490 فیلتر نتایج به سال:
OBJECTIVE To identify the awareness regarding noise pollution and its adverse effects on human health in the people of urban areas of Karachi. STUDY DESIGN Cross-sectional survey. PLACE AND DURATION OF STUDY Urban areas of Karachi, from September to October 2012. METHODOLOGY A survey was conducted with 50 selected subjects of urban areas of Karachi with their informed consent. The questio...
the aim of the present study was to assess the industrial noise pollution and its effects on the blood pressure of workers during activities intextile factory in ilam,which is situated in west of iran. a cross-sectional study was performed on a group included 81 workers and 30 people as sample and control group, respectively. a questionnaire was filled out and then the other measurements includ...
background: to prevent the adverse health effects of noise pollution and to achieve the recommended standards, assessment of noise levels in the cities is essential. the aim of this study was to evaluate noise pollution levels (npls) in isfahan, iran and compare them with recommended standard values. materials and methods: a total number of 19 measurement points were selected from most congeste...
background: sound produced by the passing traffic contributes to noise pollution. noise pollution affects the residents of both city and suburban areas. the noise produced does not only disturb the community living nearby the main road during the day but becomes worse during the night. the purpose of the study is to perform noise level measurement and subjective evaluation on the noise produced...
Sound travels very efficiently underwater, so the potential area impacted can be thousands of square kilometers or more. Anthropogenic activities such as commercial shipping, recreational activities, drilling, seismic exploration or energy production (hydroelectric power plants), have made underwater noise pollution an increasing and perhaps dominant factor in the aquatic environment. Nowadays,...
Air pollution originating from road traffic is a known risk factor of respiratory and cardiovascular disease (both in terms of chronic and acute effects). While adverse effects on cardiovascular health have also been linked with noise (after controlling for air pollution), noise exposure has been commonly linked to sleep impairment and negative emotional reactions. Health is multi-faceted, both...
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 ...
Introduction: High sound, is an occupational and environmental hazard common. Hospitals as medical and health care setting are affected by noise sources. Therefore, the aim of this study is to investigate the noise pollution in Shiraz hospitals. Methods: A cross-sectional study in different parts and the area around the 8 educational and non-educational hospitals in Shiraz was performed. For...
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