Possible damage in 8 hour exposure. Passenger car at 65 mph at 25 ft 77 dB ; freeway at 50 ft from pavement edge 10 a. Living room music 76 dB ; radio or TV-audio, vacuum cleaner 70 dB. Upper 70s are annoyingly loud to some people. Conversation in restaurant, office, background music, Air conditioning unit at feet. Fairly quiet. Quiet suburb, conversation at home. Large electrical transformers at feet. Library, bird calls 44 dB ; lowest limit of urban ambient sound 40 One-eighth as loud as 70 dB.
It didn't answer any of my questions. I still don't know what to do next. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions. Patient Education. When you need protection At the workplace, your employer measures noise with sound level meters and dosimeters. Yes No. Tell us more. Last question: How confident are you filling out medical forms by yourself?
Instead, they increase by multiples of a specific number. For the decibel scale, that number is A 20 dB sound is 10 times louder than a 10 dB sound. The level of noise in a quiet bedroom, 30 dB, is times louder than 10 dB. And 40 dB is 1, times louder than 10 dB. A typical conversation clocks in at around 60 dB. But a rock concert would be closer to dB.
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