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November 2017    Download the Entire Issue (PDF) Vol. 32, No. 11   RSS Feed for Undercurrent Issues
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Deadly Air Kills Experienced Diver

from the November, 2017 issue of Undercurrent   Subscribe Now

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Andrew Thwaites, 44, a very experienced diver and Queensland, Australia, Fisheries Director died from carbon dioxide and carbon monoxide (CO) poisoning after his air tank was filled with grossly high levels of these toxic gases. The Brisbane Coroner's Court heard that the remaining air in his tank contained 2366ppm of CO as well as high levels of CO2. The recreational limit is 5ppm.

In fact, Thwaits, himself had filled his and six other tanks on 13th July 2016, and of those that were recovered and tested, two had high levels of CO. Apparently, other tanks also had been filled from the same compressor at the clubhouse of the Underwater Research Group of Queensland. Thwaites, a widely respected marine scientist, was one of a small number of members approved to use the club's compressor....


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