Noise pollution as factor in voice disorders

Noise pollution analysis in Tehran cement plant

  Background : Cement industry has many process units. Basically all of these units can be considered as a source of noise. Since noise pollution is defined based on its offensive hearing effects, the importance of the noise sources depends directly on the number of workers in the unit.   Materials and Methods : An experimental study has been done at Tehran cement factory to recogn...

Evaluation of noise pollution in Shiraz hospitals

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...

Comparing the Voice Handicap Index Scores in Groups with Structural and Functional Voice Disorders

Objective: The effects of voice disorders vary from person to person. Occupation, work environment, life, and family reaction are variables that affect one’s perception of his/her own as an impaired voice. Voice Handicap Index (VHI) has not yet been used to compare the degree of voice disorders. Assuming that the quality of life may be different under a variety of voice disorders and that diffe...

noise pollution in zahedan and residents’ knowledge about noise pollution

Noise Pollution in Intensive Care Units and Emergency Wards

Introduction: The improvement of technology has increased noise levels in hospital Wards to higher than international standard levels (35-45 dB). Higher noise levels than the maximum level result in patient’s instability and dissatisfaction. Moreover, it will have serious negative effects on the staff’s health and the quality of their services. The purpose of this survey is to analyze the leve...