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Noise can also affect the safety of the employee and others. Noise can be a causal factor in work accidents as it may mask hazards and warning signals and impede concentration. High intensity noise interferes with vital workplace communication which increases the chance of accidents and decreases productivity. [16]
Traumatic noise exposure can happen at work (e.g., loud machinery), at play (e.g., loud sporting events, concerts, recreational activities), and/or by accident (e.g., a backfiring engine.) Noise induced hearing loss is sometimes unilateral and typically causes patients to lose hearing around the frequency of the triggering sound trauma. [17]
HSE inspector Matthew Lea said "The Control of Noise at Work Regulations require employers to put measures in place to ensure that their employees can work safely, without putting their hearing at risk." [8] Speaking on the dangers of exposure to noise he said "Noise-induced hearing loss is a degenerative condition and the ear cannot repair ...
Noise pollution, or sound pollution, is the propagation of noise or sound with potential harmful effects on humans and animals. The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems.
Occupational hearing loss (OHL) is hearing loss that occurs as a result of occupational hazards, such as excessive noise and ototoxic chemicals. Noise is a common workplace hazard, and recognized as the risk factor for noise-induced hearing loss and tinnitus but it is not the only risk factor that can result in a work-related hearing loss. [2]
This "protective effect" had long been thought to involve the active mechanisms of the outer hair cells and the efferent system commanding them. [80] The contractile effect of the outer hair cells, activated by the efferent nervous system has been proven to provide a protective effect against acoustic trauma. [119] Cross-section of the cochlea.
Safe listening promotes strategies to prevent negative effects, including hearing loss, tinnitus, and hyperacusis. While safe listening does not address exposure to unwanted sounds (which are termed noise) – for example, at work or from other noisy hobbies – it is an essential part of a comprehensive approach to total hearing health. [8]
Epidemiological investigations have shown that the negative effects of sound annoyance include "a feeling of resentment, displeasure, dissatisfaction, discomfort or offence when noise interferes with someones thoughts, feelings or actual activities". [3] Besides that, unwanted sounds can mask the positive indicators of safety. [4]