The aim of the research was to evaluate the risk for the health of the disco-goers related to no-professional exposition to noise produced by speakers of discos. The noise has been measured in the middle of a disco using a class 1 phonometer. The exposition level was calculated using the formula quoted in the D.Lgs 277/91 (Italian legislative decree) and the possible damage was calculated using the Casini's formula. The calculated daily exposition level was 99,1 dBA and the weekly exposition was 92.1 dBA. The results indicate that the hypacusia damage due to these expositions can be considered almost sure.
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