Noise is a major negative factor for the health and safety of workers. The effects of noise vary and depend on its type, level, frequency characteristics and duration.

Continuous exposure to noise can have an impact on the health of workers:

• Workers in noisy environments develop conditions such as hearing loss, tinnitus and acoustic fatigue.
• Prolonged exposure to noise is associated with increased blood pressure and increased stress.
• Exposure to noise during shifts, particularly at night, can lead to poor sleep quality, reduced well-being and efficiency.

Also, effects of noise on cognitive ability and productivity may appear as:

• Distraction, which results in reduced concentration and efficiency. Slowing down the pace of work for tasks requiring focus, memory and problem solving.
• Mental fatigue, which occurs when employees show signs of exhaust more quickly.

Exposure to noise is associated with high cortisol levels, which increase stress, cause irritability and possible emotional exhaustion. A noisy work environment can cause employees to feel frustrated and devalued by their employer, thus reducing their commitment to their work. High noise levels increase the risk of burnout, which is related to reduced motivation and prolonged absence from work. Increased noise levels can also impede communication between workers, risk perception, and the understanding of instructions, warnings and alarms, thus reducing occupational safety levels.

To summarize, addressing noise in workplaces is imperative to ensure occupational health and safety and the uninterrupted work performance.

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