What is the permissible exposure limit (PEL) for noise according to OSHA?

The permissible exposure limit (PEL) for noise established by the Occupational Safety and Health Administration (OSHA) is 90 decibels averaged over an eight-hour work shift. This standard is based on research indicating that continuous exposure to noise levels at or above this threshold can lead to hearing loss over time. The PEL is designed to protect workers' hearing by limiting their exposure to harmful noise levels in occupational settings.

At 90 dBA, workers are allowed to be in this noise environment for an extended duration while minimizing the risk of auditory damage. If the noise level exceeds this limit, protective measures, such as hearing conservation programs, must be implemented to monitor and reduce exposure among employees.