Daily noise exposure calculator

Sorry, the interactive calculator works only with browsers that support Javascript. But you can get an idea of how noise exposure adds up as follows:

An exposure of 80 dB (the lower action Level of the Noise at Work regulations) can be reached by a continuous exposure to the following noise level and duration, during one working day:

Level		Duration
80 dB		8 hours
83 dB		4 hours
86 dB		2 hours
89 dB		1 hour
92 dB		30 minutes
95 dB		15 minutes
98 dB		8 minutes
101 dB		4 minutes
104 dB		2 minutes

Doubling the duration of exposure to a constant noise has the same effect on the exposure as increasing the level by 3 dB.

Quiet breaks

Relatively short breaks have little effect. In an 8 hour shift, the reduction in exposure given by a quiet break is as follows:

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