Answer:
A)85
Step-by-step explanation:
Decibels (dB) are units used to measure the intensity or loudness of sounds. The scale is logarithmic, meaning that each increase of 10 dB represents a tenfold increase in sound intensity.
The Occupational Safety and Health Administration (OSHA) sets the permissible exposure limit (PEL) for noise in the workplace at 85 dB for an 8-hour workday. This means that if Adeline is consistently exposed to sounds at or above 85 dB for an extended period of time, it can lead to permanent hearing damage.
To put this into perspective, normal conversation typically ranges from 60 to 70 dB, while a rock concert or a chainsaw can exceed 100 dB. Prolonged exposure to sounds at or above 85 dB, such as machinery, heavy traffic, or loud music, can gradually cause irreversible damage to the sensitive structures of the inner ear.
To protect her hearing, Adeline should consider wearing hearing protection devices, such as earplugs or earmuffs, to reduce the impact of loud noises in her work environment. Additionally, regular breaks from loud noise and seeking quieter environments whenever possible can help prevent hearing loss.