At what decibel level is noise considered to have a hazardous impact?

A noise level of 140 decibels is recognized as hazardous, particularly for unprotected ears. Sustained exposure to sound levels at or above this threshold can lead to immediate hearing loss or damage and can even cause physical discomfort. In occupational settings, such as those frequently encountered by Marine Science Technicians, understanding sound levels is essential for safety protocols and health regulations.

To provide context, levels around 120 dB may begin to cause hearing damage with prolonged exposure, while levels of 130 dB and above significantly increase the risk of immediate harm. However, 140 dB is the level where the risk escalates markedly, and rapid intervention is crucial to prevent long-term damage.