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Year : 2008  |  Volume : 10  |  Issue : 40  |  Page : 90--98

The relationship between noise frequency components and physical, physiological and psychological effects of industrial workers


1 Department of Electronics Engineering, VKIT, Visvesvaraya Technological University, Bangalore - 560 074, Karnataka, India
2 Department of Electronics Engineering, PESCE, Visvesvaraya Technological University, Mandya - 571 401, Karnataka, India

Correspondence Address:
K V Mahendra Prashanth
Department of Electronics Engineering, Vivekananda Institute of Technology, Gudimavu, Kengeri Hobli, Bangalore - 560 074, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1463-1741.44347

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A corollary to industrialization and urbanization is a significant increase in noise levels. In many industrial settings, the noise levels are such that they are potential health hazards. There are many studies which suggest that prolonged exposures to high noise levels have a negative impact on various aspects of human physiology. However, not much work has been conducted in studying the effects of various noise frequencies in the industrial environment. This paper has made an attempt to identify various noise frequency components to which the workers of six major industries in Mysore (Karnataka State, India) are being exposed, and their effects on the physical, physiological, and psychological systems of the working community with respect to their noisy industrial environment. The study results showed that the sampled industrial workers were repeatedly being exposed to noise of dominant low- and mid-octave band center frequencies. It is found that symptoms such as 'eye ball pressure,' 'awakening from sleep,' 'pains in neck,' 'frequent ear vibration,' 'chronic fatigue,' 'repeated headache,' 'backache,' and 'repeated ear pulsation' are observed to be highly associated with low- and mid-octave band center frequency noise exposure among the sampled workers. Furthermore, among the major psychological symptoms identified to be associated with octave band center frequencies, it is evident that 'irritability' is highly associated with low- and mid-octave band noise frequency characteristics.






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