What should a workplace environment sound level be?

What should a workplace environment sound level be?

• A. below 85 dBA
• B. below 90 dBA
• C. below 95 dBA
• D. below 100 dBA

Answer: (B)

The main idea is protecting hearing by keeping workplace noise at a level where long-term exposure won’t cause damage. In many safety standards, 90 dBA over an eight-hour shift is the practical limit; staying at or below this level means you’re within the commonly accepted exposure range. Because the décibel scale is logarithmic, small increases in level cut the safe exposure time quickly—roughly, each 5 dB rise halves how long you can be exposed without added protection. So aiming to keep the environment below 90 dBA helps minimize risk without requiring extreme restrictions. If the sound level were to creep above 90 dBA, you’d need to implement controls to cut the noise or provide hearing protection to maintain safety. Levels below 85 dBA are even safer, but the question targets the standard workplace threshold, which is 90 dBA.

The main idea is protecting hearing by keeping workplace noise at a level where long-term exposure won’t cause damage. In many safety standards, 90 dBA over an eight-hour shift is the practical limit; staying at or below this level means you’re within the commonly accepted exposure range. Because the décibel scale is logarithmic, small increases in level cut the safe exposure time quickly—roughly, each 5 dB rise halves how long you can be exposed without added protection. So aiming to keep the environment below 90 dBA helps minimize risk without requiring extreme restrictions.

If the sound level were to creep above 90 dBA, you’d need to implement controls to cut the noise or provide hearing protection to maintain safety. Levels below 85 dBA are even safer, but the question targets the standard workplace threshold, which is 90 dBA.