What is the permissible exposure limit (PEL) for noise exposure over an eight-hour duration?

The permissible exposure limit (PEL) for noise exposure over an eight-hour duration is set at 90 dBA according to OSHA regulations. This limit is established to protect workers from the harmful effects of prolonged exposure to loud noise, which can lead to hearing loss and other health issues. The threshold of 90 dBA indicates that workers can be exposed to noise at this level for a full work shift without significant risk of hearing impairment.

Understanding this limit is crucial for workplace safety, as employers are responsible for monitoring noise levels and implementing controls or protections when noise exceeds this threshold. While other levels of dBA are associated with various risks or precautions, the PEL specifically focuses on an 8-hour exposure period, making 90 dBA the correct and recognized standard for occupational noise exposure.