What is the permissible exposure level for noise in decibels (dB)?

The permissible exposure level for noise is significantly focused on protecting hearing health in occupational settings. The correct answer indicates that the threshold at which workers should be protected from potential hearing damage, according to regulations set by organizations such as the Occupational Safety and Health Administration (OSHA), is 90 dB.

Exposure at this level or higher for extended periods can lead to Noise-Induced Hearing Loss (NIHL) if appropriate measures are not taken. Controls, such as hearing conservation programs, become crucial when exposure reaches or exceeds this limit.

Aside from this, it’s important to understand that while lower levels of noise, such as 85 dB, may also be referenced in various contexts involving hearing conservation, the 90 dB mark is specifically pertinent to the standard for permissible exposure as outlined by OSHA. Hence, focusing on regulations and prevention reflects a deeper understanding of occupational safety and applicable standards in noise exposure.