What decibel range can cause hearing damage if one is exposed over time without protection?

• A. 65 to 80
• B. 75 to 85
• C. 85 to 120
• D. 120 to 140

Answer: (C)

The correct response is rooted in the understanding of how sound levels are measured and their potential impact on hearing health. Decibels (dB) are a logarithmic unit of measurement used to express the intensity of sound. Exposure to sound levels above 85 dB can lead to hearing damage over time, particularly without the use of hearing protection.

Sounds in the range of 85 to 120 dB can be particularly harmful when exposure is prolonged. At 85 dB, consistent exposure can start to compromise hearing, while sounds at 120 dB and above can cause immediate hearing damage, often resulting in a painful experience and permanent loss of hearing after just a brief exposure.

The selected range, therefore, encompasses the critical threshold where hearing protection becomes essential to prevent potential risks associated with chronic exposure to high sound levels. This understanding underscores the importance of monitoring sound levels in environments known for high decibel output, such as construction sites or concerts, to safeguard auditory health.