Question

The current permissible noise exposure limit for the construction industry is _____ decibels per 8-hour duration.

1) 70
2) 80
3) 90
4) 100

Answer 1

The permissible noise exposure limit for the construction industry for an 8-hour duration is 90 decibels, with recommendations emphasizing that exposure should not exceed 85 dB to avoid hearing damage.

Step-by-step explanation:

The current permissible noise exposure limit for the construction industry is 90 decibels per 8-hour duration. This is based on the recommendation by several government agencies and health-related professional associations that suggest 85 dB should not be exceeded during an 8-hour daily exposure in the absence of hearing protection. However, it is essential to note that an 8-hour exposure to a sound intensity level of 90.0 dB may cause hearing damage, underlining the importance of using hearing protection when exposed to such levels.