Date posted: May 11, 2015
A major study by Subacoustech into underwater noise exposure to commercial divers has been published in the Undersea and Hyperbaric Medicine Journal. Tim Mason and Adam Collett studied the noise levels inside and outside the divers’ helmets under typical operations in hyperbaric conditions at depths of 30 and 120 m, as well as using high noise equipment in shallow waters. Measurements were taken with divers using air and heliox, and found to exceed legislated limits for noise exposure even without the use of noisy tools.
Details of the study are available here: http://www.ncbi.nlm.nih.gov/pubmed/26094290
The study assisted by the Norwegian Oil and Gas Association (Norsk Olje og Gass), Bergen University College diving school, Norsk Yrkesdykkerskole in Oslo, Technip and Subsea7.