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Summary
This review covers noise measurement and its health impacts, including hearing loss, cardiovascular effects, and sleep disturbances. It also discusses annoyance factors like habituation and controllability, highlighting the challenges in quantifying these subjective experiences.
Area of Science:
- Environmental Health
- Audiology
- Occupational Health
Context:
- Noise pollution is a pervasive environmental stressor.
- Understanding noise's impact is crucial for public health and workplace safety.
- Existing research often focuses on audiological effects, but broader health impacts require further investigation.
Purpose:
- To review the physical principles of sound measurement and noise evaluation.
- To demonstrate the effects of noise on hearing, including temporary threshold shift (TTS) and noise-induced hearing loss.
- To explore extra-aural health effects of noise, such as impacts on the cardiovascular system, blood pressure, sleep, and long-term health.
Summary:
- The review details sound measurement techniques and noise assessment methodologies.
- Experimental data illustrates noise-induced hearing impairments (TTS, hearing loss).
- Extra-aural effects encompass cardiovascular, sleep, neuro-humoral, gastrointestinal, and psychosomatic disturbances.
- Annoyance factors like habituation, subjective attitudes, and noise controllability are examined, noting quantification difficulties.
Impact:
- Provides a comprehensive overview of noise's detrimental effects on human health.
- Highlights the complexity of noise annoyance and the challenges in its objective assessment.
- Informs public health policies and occupational safety guidelines regarding noise exposure limits and mitigation strategies.