This historical image was provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH). The photograph depicted a tunnel worker inside the Queens Midtown Tunnel, in Queens, New York, while the subterranean passageway was under construction. This man was manipulating a control switchboard while wearing a protective hardhat. At the time, he was not wearing any filtered breathing mask, but it is not known from this image, as to whether or not the air quality required the use of such a mask. One might assume that this subterranean atmosphere was being monitored, and that safe levels of potentially dangerous particulates and gasses, were required to be maintained.
December 3, 2012
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