Question

at what decibel level is sound exposure considered safe for humans?

• 100 db

• 70 db

• 85 db

• 50 db

Explanation:

Sound exposure levels are measured in decibels (dB). According to health and safety standards, a sound level of 70 dB is considered safe for humans over an 8 - hour period. Levels above 70 dB can cause hearing damage over time. 100 dB is extremely loud (e.g., a motorcycle engine) and can cause immediate damage. 85 dB is the threshold for OSHA (Occupational Safety and Health Administration) regulations for an 8 - hour workday. 50 dB is relatively quiet (e.g., a quiet room).

Answer:

70 dB